MS300 Intercom Master Station

Transcription

1 MS300 Intercom Master Station Highlights Three circuits rather than the usual two. Circuits are linkable (A + B) or (A + B + C) with auto termination impedance adjustment. Each circuit s termination can be lifted via rear panel DIP switches. Mic switch on each circuit can be tapped for locking or held and released for momentary. Full duplex, hands-free operation, in moderately noisy environments. (with optional noise-canceling gooseneck mic.) Front panel 4-pin XLR may be used for gooseneck mic. or headset. Gooseneck or headset mic. may be dynamic or electret. Lighted front panel switch sets choice. Front panel green LED indicates presence of 24VDC across the three circuits. Three front panel flashing red LEDs report trouble status of each circuit. Other circuits are not affected. System auto-resets when the problem is eliminated. While switching is all electronic, the audio paths remain analog providing comfortable long-term listening. Each circuit has a characteristic impedance of 200 ohms at audio frequencies, allowing many beltpacks to be connected together without significantly changing the circuit performance. The termination networks are automatically removed and inserted during circuit linking to ensure a constant impedance for all circuits. The termination networks may also be manually removed by setting a switch on the rear panel, if desired. This may be useful when using an adjunct network, or if interfacing with a larger communications system. Power Supply The internal power supply provides power for up to 66 beltpacks connected to the circuits. Power is well regulated at 24 volts DC and will automatically adjust down during periods of line voltage brownout or high loading with loudspeakers stations or other equipment. Each of the 3 circuits has its own rectifier, regulator and protective components, so a fault in one circuit does not affect the others. Short circuit protection and current limiting prevent component damage in the event of mis-connection or cable failure. The toroidal transformer, coupled with linear regulators ensure noise-free operation under all conditions. The MS300 has a quiet built-in fan that turns on automatically when needed to cool the unit. Front panel indicators show the status of all circuits and allow an operator to quickly address a circuit problem. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.2_04.13

2 Front Panel Controls 1. Main power switch: Illuminated. Indicates AC voltage present. 2. Headset/Handset/Gooseneck Mic input: Accepts standard dynamic or electret mic headsets/handsets/ gooseneck microphones terminated with 4pin female XLR. 3. Intercom circuit power indicators: Top LED indicates 24VDC present in unit. Individual channels are lit Green when in normal operating conditions. Flashing Red indicates a short circuit. Solid Red indicates overheating of power supply has occurred, and circuit has shut down. 4. Override activation button: Latching button sends signal to override equipped products to return them to preset volume levels. Lit LED indicates override is active. 5. Mic select switch: Allows user to select between dynamic or electret mic input into Headset / Handset input. Lit LED indicates Electret Mic setting Non Illuminated LED indicates Dynamic Mic setting.. 6. Talk circuit volume control: Allows user to balance local listen levels of each circuit individually. This control only effects levels at this station, and does not effect others on the talk circuit. 7. Mic control button: Controls mic operation for assigned talk circuit. Button has both momentary and latching function. Press and hold while talking, release when done talking, for momentary operation. Press quickly for latching operation. Illuminated switch indicates an active Mic in either mode of operation. 8. Signal Button: Used to signal or call other users on assigned talk circuit. Non latching button illuminates signal LEDs both locally and remotely. When sending or receiving a signal the LED will start to flash if button is depressed for more than.25 seconds. The signal button will also trigger any Blazon strobe units to flash 6-7 times as a visual cue to users not closely monitoring their station. 9. Link control switch: 3 position toggle for linking intercom talk circuits. Up position combines circuit A and circuit B into a single talk circuit. Middle position allows all 3 circuits to operate Independently of each other. Down position combines all 3 circuits into one single talk circuit. 10. Sidetone control: Recessed rotary potentiometer used to adjust the level of the users own voice locally. This control will only effect the level locally, and will have no effect on other users in the talk circuit. May also be used as a Nulling Pot to help eliminate feedback when using with a gooseneck mic and speaker. The zero setting of this control is typically near the 12 o clock position. 11. Built in speaker controls: A 2 position toggle for turning the built in speaker on and off. Rotary volume knob for adjusting desired speaker listen levels. These controls effect the built in speaker only, and have no effect on the user s headset or handset.

3 MS301 PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) Skype: intercom4pros 3-Circuit Intercom Master Station w/ IFB Function Three circuits rather than the usual two. Highlights Each circuit can be intercom or IFB in any combination. Circuits are linkable (A + B) or (A + B + C) with auto termination impedance adjustment. Each circuit s termination can be lifted via rear panel DIP switches. Independent level control of program audio output for each circuit with an LED VU meter for each. Mic switch on each circuit can be tapped for locking or held and released for momentary. Internal power supply is linear (except for microprocessor functions) with 2.4A continuous output. Toroidal transformer with extensive monitoring and auto-control of overload and heat considerations. Full duplex, hands-free operation, in moderately noisy environments. (with optional gooseneck mic.) Paging output (balanced and isolated) on rear panel activated by front panel momentary button. Dry contacts on rear panel also closed by page button Front panel 4-pin XLR may be used for gooseneck mic. or headset. Gooseneck or headset mic. may be dynamic or electret. Lighted front panel switch sets choice. Front panel green LED indicates presence of 24VDC across the three circuits. Three front panel flashing red LEDs report trouble status of each circuit. Other circuits are not affected. System resets when the problem is repaired. While switching is all electronic, the audio paths remain analog providing comfortable long-term listening. A front panel button initiates Override which overrides front panel controls on LS2 and LS3 loudspeaker stations, restoring preset volume and status. Printed in USA Rev

4 Performance The MS301 is a full featured main station with integral high capacity power supply. It has the capacity to control three independent communications circuits. The single rack unit high (1U: 1.75 ) cabinet is available with either plain side panels (standard) or available rack-mount side panel. The MS301 has three independent communications circuits labeled A, B, and C. The operator may communicate with stations connected to any or all of the circuits by enabling the circuit ON switches. The SmartSwitch feature allows the circuit enabling switches to be used automatically in either push on/push off or PTT (Push To Talk) modes. Normally, the three circuits remain independent, and stations connected to one cannot speak to stations connected to the others. During rehearsals, or other activities where a more global common communications circuit would be desirable, switching the LINK function can join circuits A and B, or link all three circuits together. This allows an operator at the MS301 to cue or guide two or three separate groups of personnel who are otherwise independent. A standard headset may be used with the MS301, or, if desired, a gooseneck microphone (LSM-n, sold separately) may be plugged into the front panel headset jack, and the MS301 can be used as a fully duplex hands-free communications station utilizing its internal wide-range speaker. The sidetone null control can be adjusted to effectively reduce any possibility of ringing and feedback. The operator can monitor any circuit at any level, while communicating with any, all or none of the circuits. Individual volume faders provide for a complete custom mix. A front panel switch diverts the output of the headset (or gooseneck) microphone to a rear panel 600 ohm balanced output (both XLR and ¼ TRS), permitting paging through a remote paging amplifier, eliminating the need for a separate microphone for this purpose. This output may also be sent to an audio console. To activate the remote amplifier, a pair of normally open contacts, accessible on the rear panel, are closed as long as the Page key is pressed. An external auxiliary program inputs jack is provided. A trim switch on the rear panel allows connection with either Mic level (nominal -44dBm) or line level (-24dBm) sources. The connector allows for either XLR or ¼, balanced or unbalanced inputs. These allow external sources such as program feeds, run-of-the-show relays, paging announcements or other background information to be mixed onto the communication circuit(s). Individual faders allow adjustment of the level of auxiliary program material to each of the three circuits. When an operator at the MS301 activates the headset or gooseneck mic, he can either talk over the program material or interrupt it. A unique feature of the MS301 automatically fades the program material down to zero over a one second interval, while bringing the MS301 mic level up to full. The effect is pleasant and non-alarming to a listener on the circuit. When the mic switch is deactivated, the program material fades up to full over a one second interval. This is especially useful when broadcasting with guests or talent. The interruption can be set to instantaneous, if so desired. The internal power supply provides power for up to 66 beltpacks connected to the circuits. Power is well regulated at 24 volts DC and will automatically adjust down during periods of line voltage brownout or high loading with powered speakers or other equipment. Short circuit protection and current limiting prevent component damage in the event of mis-connection or cable failure. The toroidal transformer, coupled with linear regulators ensure noise-free operation under all conditions. The MS301 has a quiet built-in fan that turns on automatically when needed to cool the unit. Front panel indicators show the status of all circuits and allow an operator to quickly address a circuit problem. Each circuit has a characteristic impedance of 200 ohms at audio frequencies, allowing many beltpacks to connected together without significantly changing the circuit performance. The termination networks are automatically removed and inserted during circuit linking to ensure a constant impedance for all circuits. The termination networks may also be manually removed by setting a switch on the rear panel, if desired. This may be useful when using an adjunct network, or if interfacing with a larger communications system.

5 Front Panel Controls 1. Main power switch: Illuminated. Indicates AC voltage present. 2. Headset/Handset/Gooseneck Mic input: Accepts standard dynamic or electret mic headsets/handsets/ gooseneck microphones terminated with 4pin female XLR. 3. Intercom circuit power indicators: Top LED indicates 24VDC present in unit. Individual channels are lit Green when in normal operating conditions. Flashing Red indicates a short circuit. Solid Red indicates overheating of power supply has occurred, and circuit has shut down. 4. Override activation button: Latching button sends signal to override equipped products to return them to preset volume levels. Lit LED indicates override is active. 5. Mic select switch: Allows user to select between dynamic or electret mic input into Headset / Handset input. Lit LED indicates Electret Mic setting Non Illuminated LED indicates Dynamic Mic setting.. 6. Talk circuit volume control: Allows user to balance local listen levels of each circuit individually. This control only effects levels at this station, and does not effect others on the talk circuit. 7. Mic control button: Controls mic operation for assigned talk circuit. Button has both momentary and latching function. Press and hold while talking, release when done talking, for momentary operation. Press quickly for latching operation. Illuminated switch indicates an active Mic in either mode of operation. 8. Signal Button: Used to signal or call other users on assigned talk circuit. Non latching button illuminates signal LEDs both locally and remotely. When sending or receiving a signal the LED will start to flash if button is depressed for more than.25 seconds. The signal button will also trigger any Blazon strobe units to flash 4-5 times as a visual cue to users not closely monitoring their station. 9. Link control switch: 3 position toggle for linking intercom talk circuits. Up position combines circuit A and circuit B into a single talk circuit. Middle position allows all 3 circuits to operate Independently of each other. Down position combines all 3 circuits into one single talk circuit. 10. Page output button: Non-latching button for connecting to a house paging system. When the button is depressed it simultaneously closes a dry contact and opens the users mic to a 600 balanced audio output located on the back panel. (See back panel diagram for contact and output reference.) 11. Sidetone control: Recessed rotary potentiometer used to adjust the level of the users own voice locally. This control will only effect the level locally, and will have no effect on other users in the talk circuit. May also be used as a Nulling Pot to help eliminate feedback when using with a gooseneck mic and speaker. The zero setting of this control is typically near the 12 o clock position. 12. Program input selection: 3 position toggle allows user to select between 4 variables of program input. In the upper position the program material will be present in assigned talk circuit with the ability to talk over the input. In the middle position the program input is not present in the assigned talk circuit. In the lower position the program input is present in the talk circuit, with the ability to interrupt when speaking. The interrupt feature is user defined, with a DIP switch on the rear panel, for instant interrupt, or interrupt with fade. 13. Program level control and indicators: A recessed rotary potentiometer is used to adjust the program material volume for each assigned circuit. In addition a LED VU meter is available for visually monitoring levels while not listening to the circuit. The LEDs confirm signal present, and warn of audio clipping. 14. Built in speaker controls: A 2 position toggle for turning the built in speaker on and off. Rotary volume knob for adjusting desired speaker listen levels. These controls effect the built in speaker only, and have no effect on the user s headset or handset.

6 Accessories 1. The MSM300 connects to the MS301 via the 9-pin D-SUB connector on the rear panel, providing three additional fully functional circuits. 2. We offer a range of Gooseneck Microphones fitted with the required 4-pin XLR. Your choice depends upon length of the gooseneck, and the amount of noise canceling required by the environment. 3. Rack ear side panels. Bolt on in place of the plain panels which are standard. Technical Specifications Current draw (at 120VAC): 0.14A (no load), DC out Power output: 24 volts DC 2.4A continuous Line termination: DC: 5KW, 50 Hz-20 KHz: 200 Transducer impedances: Mic: 200 dynamic or 1.2k electret, Earphone: 200~600 Aux. input: Mic level: (-44dBm) 48K, Line level (-24dBm): 1K Size (excluding ears) : 17 width x 9.5 depth x 1.75 height (432 x 241 x 44.5 mm) Weight: 9.8lbs. 4.5Kg Warranty The MS301 is covered by a 3-year limited warranty against defects in workmanship or materials. Misuse, abuse and modification void this warranty except where a modification is agreed upon by the factory and executed by a qualified technician. Local and regional laws may grant you further rights.

7 MSM301 3-Circuit Add-On for MS301 The MSM301 attaches to an MS301 to double the number of available independent circuits from 3 to 6. The new circuits: D, E & F have all the capabilities of the original 3, including program audio insertion and control and the ability to use each circuit as either intercom or IFB with program muting or ducking. Connection of the two units is via D-Sub connector and the short cable is supplied with the MSM301. As with the original 3 circuits, each of the new circuits has 2 XLRs on the rear for connecting stations. The number of stations connected any of these XLRs can be further increased by the use of an SB1 accessory. The MSM301 is powered by the MS301 to which it is attached. It does not increase the amount of current available and is intended only to increase the number of independent communications circuits. The total current available remains at 2.4A, roughly the equivalent of 75 beltpacks. If your objective is only to connect more stations to the three circuits on the MS301, the MSM301 is not necessary. You can accomplish this with SB1s, Y-cables and the loop-through function on most stations. Circuits may be linked when required, as may be the case in sound or lighting checks and rehearsals. You may link D to E or select ALL. If ALL is selected on both the MS301 and MSM301 all 6 circuits will be linked. The Status Bar of LEDs indicates that the unit is receiving its 24 volt operating current from the MS301 (green), and the trouble status of any of the circuits (red). If there is a problem on a circuit the red LED will flash. If the problem is serious enough to damage the MS301 power supply components the red LED will be constantly ON and the circuit disconnected until repaired. Most probable are short circuits between Pin 2 and ground or Pin 1-3 reversals in the system wiring. Phase must be maintained when using microphone cable for intercom. On the rear panel there are DIP switches to allow you to choose between ducking and muting the program audio in the IFB mode, and for lifting the termination circuit of each circuit individually. The MSM301 automatically maintains the 200W termination impedance when linking, but there may be applications where one of its circuits is connected differently. The MSM301 is intended to be located next to the MS301 and not remotely. For remote Master Station functions, see the RSM300 (Remote Sub-Master 300). Attempting to use the MSM301 other than as an extension of the MS301 will almost certainly damage the unit as it is integrated with the microprocessor in the MS301. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Printed in USA Rev

8 RSM300 Remote Sub-Master The RSM300 provides for specialty groups within the technical staff to have their own sub-networks while the group directors remain in communications with the director/producer who is at the Master Station. A classic example is lighting, where the lighting director would have an RSM300 with her Circuit X connected to one of the circuits on the MS301 Master Station while her Y-circuit is connected to specialty lighting or effects and her Z-circuit is connected to the follow-spot operators. She now has communications with 3 different groups, all independent of one another. None can hear the others, unless she chooses to use her linking switch. The RSM300 can be used with a headset or, if far enough away from the stations to which she is talking, and the noise level is not excessive, she can plug a noise-canceling, closetalking gooseneck microphone into the front panel and use it with the built-in speaker for hands free two-way communications. See Sidetone below. The Talk buttons are either momentary (press and hold) or latching (tap once, tap again to shut off). The audio level at which each circuit is heard locally is individually adjustable. A signal LED (bright green) is provided for each circuit should it be turned down or off, and pressing the signal button lights the signal lamps on the other stations connected to the same circuit. The speaker can be turned off and its level adjusted. Both dynamic and electret microphones can be used, either as part of a headset or as gooseneck mic. The selector button is marked Mic Type and an LED announces the status. The smallest control on the front panel could be the most useful. It is marked with a symbol which indicates Sidetone, the sound of your own voice coming to your own earphone from your own microphone. With the RSM300 it can be used to adjust your volume in your headset, or lower the level of your own voice coming from the speaker, thus making hands-free use possible. The control only affects local levels, not what others hear. If the system has a program feed and the RSM300 s X-circuit is connected to a circuit on the MS301 which has the program on it, the RSM300 operators will hear it on the X-circuit. It cannot be passed along to circuits Y and Z. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Printed in USA Rev

9 PS300 Intercom Power Supply A+B Off ALL Status 24VDC Circ A Circ B Circ C Pro Intercom PS300 Intercom Power Supply Link 1. The PS300 is a 3 circuit Power Supply with a unique hybrid configuration. Microprocessors operate all the switching, routing, and supervision functions, while the audio paths and the core power supply remain analog. The result is a station with unrivaled flexibility, muscular reliability, and clean, smooth audio. 2. The PS300, as in all the 300 series master stations and power supplies, has a large toroidal transformer which gives off virtually no stray field radiation to interfere with the other devices with which it shares rack space. 3. Those power supply components which create heat are mounted on a massive heat sink, and, when necessary (rarely) get extra cooling from a thermally regulated cooling fan. 4. Each of the 3 PS300 circuits is independent of the others, except for sharing the toroidal transformer and the rectifier. Therefore, a problem on one circuit does not affect the others. When a circuit problem occurs, and is eliminated, the PS300 resumes normal operation without re booting. 5. The monitoring and control functions include automatic adjustment of the termination impedance when the circuits are combined, adjusting to brown outs or sudden drops in line voltage, monitoring the temperature of the heat sink and switching the cooling fan on when required, and reporting the status of each circuit to LED indicators on the front panel: The top, green LED reports that 24VDC is being delivered to the system. The lower 3 LEDs are green when that circuit OK, and become red when it is experiencing an overload and or short circuit and therefore has been shut down until the problem is solved. 6. The transformer has primary windings for both 120VAC and 240VAC (50/60 Hz) and allows wide deviation from those voltages without any effect on performance. At as low as 100VAC, the secondary voltage will remain at 24VDC while the available current will be slightly reduced from 2.4A continuous to 2.0A continuous. The voltage and fuse are changed on the rear panel. 7. The components and microprocessor which monitor and adjust the power supply s performance are separately mounted on their own circuit board, as far as possible from any heat source. 8. The PS300 can be used with any unbalanced 200 Ohm party line intercom components. 9. Each circuit has a DIP switch on the rear panel for lifting the termination circuit. This is only needed when the PS300 is augmenting a system which already has a termination circuit. Specifications: (subject to change without notice Current draw (at 120VAC): 0.14A (no load), 2.4A DC out Power output: 24 volts DC 2.4A continuous Line termination: DC: 5KW; 50Hz 20KHz: 200W Size (excluding ears) : 17 width x 9.5 depth x 1.75 height (432 x 241 x 44.5 mm) Weight: 9.8lbs. 4.5Kg PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Printed in USA Rev

10 PS301 Intercom Power Supply with Program Audio Input 1. The PS301 is a 3 circuit Power Supply with a unique hybrid configuration. Microprocessors operate all the switching, routing, and supervision functions, while the audio paths and the core power supply remain analog. The result is a station with unrivaled flexibility, muscular reliability, and clean, smooth audio. 2. The PS301, as in all the 300 series master stations and power supplies, has a large toroidal transformer which gives off virtually no stray field radiation to interfere with the other devices with which it shares rack space. 3. Those power supply components which create heat are mounted on a massive heat sink, and, when necessary (rarely) get extra cooling from a thermally regulated cooling fan. 4. Each of the 3 PS301 circuits is independent of the others, except for sharing the toroidal transformer and the rectifier. Therefore, a problem on one circuit does not affect the others. When a circuit problem occurs, and is eliminated, the PS301 resumes normal operation without re booting. 5. The monitoring and control functions include automatic adjustment of the termination impedance when the circuits are combined, adjusting to brown outs or sudden drops in line voltage, monitoring the temperature of the heat sink and switching the cooling fan on when required, and reporting the status of each circuit to LED indicators on the front panel. The top, green LED reports that 24VDC is being delivered to the system. The lower 3 LEDs are green when that circuit OK, and become red when it is experiencing an overload and or short circuit and therefore has been shut down until the problem is solved. 6. The transformer has primary windings for both 120VAC and 240VAC (50/60 Hz) and allows wide deviation from those voltages without any effect on performance. At as low as 100VAC, the secondary voltage will remain at 24VDC while the available current will be slightly reduced from 2.4A continuous to 2.0A continuous. The voltage and fuse are changed on the rear panel. 7. The components and microprocessor which monitor and adjust the power supply s performance are separately mounted on their own circuit board, as far as possible from any heat source. 8. The PS301 can be used with any unbalanced 200 Ohm party line intercom components. 9. Each circuit has a DIP switch on the rear panel for lifting the termination circuit. This is only needed when the PS301 is augmenting a system which already has a termination circuit. 10. There are 3 DIP switches on the rear panel for lifting the termination circuits. This is only necessary when the PS301 is being used to augment a system which already has a termination circuit. Specifications: (subject to change without notice) Current draw (at 120VAC): 0.14A (no load), 2.4A DC out Power output: 24 volts DC 2.4A continuous Line termination: DC: 5KW; 50Hz 20KHz: 200W Aux. input: Mic level: ( 44dBm) 48K Ohm, Line level ( 24dBm): 1K Ohm Size (excluding ears) : 17 width x 9.5 depth x 1.75 height (432 x 241 x 44.5 mm) Weight: 9.8lbs. 4.5Kg Printed in USA PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.0/

11 Affordable 2 to 10 sta tion Sys tems Per for mance Durability Value Compatibility Per for mance: An econocom sys tem con sists of: 1) a ta ble-top (AD2410) AC adap tor with re mov able IEC power cord, and a ca ble with con nec tor which con nects the AD2410 to the PS4 in ter face box, and; 2) a PS4 sys tem in ter face. These two de vices, taken to gether, are the sys tem s power sup ply. Also in cluded are two, three or four of our stan dard full-fea - tured BP1 belt packs, and a head set, with con nec tor, for each belt pack. The sys tems are also avail able with out head - sets. The sys tem does in clude a sig nal light fea ture. The econocom power sup ply com po nents are not in tended to be used in sys tems which in clude more than two loud speaker sta tions or stage man ager sta tions, and do not pro vide mul ti ple cir cuits. One to six more BP1 belt packs (for a maximum to tal of ten) may be added to the sys tem with out cre at ing hum or over heat ing the power sup ply components. Older belt-packs, par tic u larly those with in can des cent (rather than LED) sig nal lamps should be added with cau tion as they draw much more cur rent. The AC adap tor pro vides up to 1.0A of cur rent at a nom i nal 24VDC. It is UL CE and CSA ap proved. It has uni ver sal in put, op er at ing at any volt age from 100 to 240VAC at ei ther 50 or 60 HZ. The PS4 sys tem in ter face pro vides pre cise volt age reg u la tion, fur ther smooth ing of the DC cur rent (AC hum elim i na tion), au to matic over load/short-cir cuit pro tec tion, the nec es sary ter mi na tion net work for the in ter com cir cuit, an LED in di ca tor which in di cates that 24VDC is be ing de liv ered, and 3 par al leled XLR jacks for con nec tion of head set sta tions or strings of sta tions in a party-line con fig u ra tion.the com po nents of an econocom sys tem are con nected to gether us ing stan - dard 2-con duc tor shielded mi cro phone ca bles fit ted with 3 pin XLR con nec tors (male/fe male). The PS4 has three out lets which are in par al lel and the BP1s have a male and a fe male XLR for con nect ing to the PS4 and for loop ing on - wards to the next BP1. Du ra bil ity: The ribbed, ex truded alu mi num case, poly propy lene end be zels, in ter nal sup port sys tem for the PC boards, and best qual ity XLR con nec tors all con trib ute to the out stand ing abil ity of the sys tem com po nents to with stand rough us - age. Value: The com par a tively low price of an econocom sys tem is made pos si ble by the min i mized as sem bly costs re sult - ing from sim plic ity of con struc tion. Sim ple con struc tion also af fords the use of higher qual ity com po nents, and in creases the ease (thus low er ing the cost) of ser vic ing. Com pat i bil ity: The econocom AC adap tor and PS4 sys tem in ter face are fully com pat i ble with Clear-Com and other pop u lar (200 un bal anced) party-line head set in ter com sys tems. Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

12 PS3 Battery Adaptor Performance Durability Value Compatibility Performance: The PS3 provides the facilities necessary to power your cabled intercom system from batteries. Typically, a pair of 12V batteries are wired in series to provide 24V, then connected to the PS3. Best because of size, weight, and recharge-ability, are computer UPS or motorcycle batteries, but auto or even lantern batteries may be used. Time between recharging will depend upon the number of stations connected, but as an example, a pair of 150 Ampere/Hour batteries would power ten belt packs, with their signal lights constantly On, for over 1000 hours. The front panel contains a pair of binding posts for attachment of the batteries, and a high-quality circuit breaker which acts as the On/Off switch and limits the current which may be drawn by the system from the batteries to a safe 1.0 Amp. Although the binding posts are colored red and black, an internal circuit corrects reverse polarity. The rear panel contains three 3-pin male XLR-type connectors, wired in parallel, for connecting belt packs or other stations to the system.the PS3 provides the necessary termination circuit for the audio line, to maintain stability as stations are added or removed from the system. Durability: The ribbed, extruded aluminum case; glass-filled nylon end bezels; internal support system for the PC board; best-quality XLR-type connectors, and; recessed controls, all contribute to the outstanding ability of the PS3 to withstand rough usage. Value: The comparatively low price of the PS3 is made possible by the minimized assembly cost resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing. Compatibility: The PS3 is plug-in compatible with Clear-Com and other popular headset intercom systems. Technical Specifications: (Subject to change without notice) Power requirement: 12~24 VDC from batteries Power output: 1.0 Amp maximum, 30V peak, smoothed (ripple free) Audio bridging impedance: 200 unbalanced. Dimensions:3.70x4.30x2.50in (93.98x109.22x63.5 mm.) Weight: 14.5 oz (0.411 Kg.) Batteries are NOT provided. Printedin U.S.A. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.3_05.13

13 BP1SL (Switch able Be tween Cir cuit A or Cir cuit B) Por ta ble Head set Sta tion Per for mance Durability Value Compatibility Per for mance: The BP1SL is de signed to be con nected to two dif fer ent cir cuits, but may only com mu ni cate with one at a time. When the user is con nected to ei ther cir cuit, the sig nal lamp for the other is still ac tive. The BP1SL por ta ble head set sta tion may be worn on the belt or hung on the wall by its sturdy belt-clip. Soft plas tic strips on the un der side help hold it in place when set on top of a con sole. The matte black fin ish min i mizes vis i bil ity. Fre quency re sponse has been care fully shaped to op ti mize both in tel li gi bil ity and long-term lis ten ing com fort. A mic lim iter cir cuit re duces over load dis tor tion. The high bridg ing im ped ance en sures that sys tem and sidetone lev els do not vary as other sta tions are switched in and out of the cir cuit. The top (front) panel con tains con trols for switch ing the mi cro phone on and off, for con trol ling lis ten ing level, for sig - nal ing, and for switch ing be tween cir cuits A and B. The are eas ily iden ti fi able by touch. A re cessed, screw driver-ad - just con trol is pro vided for vary ing the level of the user s voice to be heard in his own ear phone (sidetone). A pair of long-life, ex tremely bright, red LEDs serve as the sig nal lights. The bot tom panel pro vides one 3-pin fe male XLR for con nec tion to each cir cuit, and a 4-pin male XLR for con nec tion of any stan dard com mu ni ca tions head set with a dy - namic mi cro phone. Durability: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board; best qual ity XLR con nec tors, and; re cessed con trols, all con trib ute to the out stand ing abil ity of the BP1SL to with stand rough us age. Value: The com par a tively low price of the BP1SL is made pos si ble by the min i mized as sem bly cost re sult ing from sim plic ity of con struc tion. Sim ple con struc tion also af fords the use of higher qual ity com po nents, and in creases the ease (thus low er ing the cost) of ser vic ing. Compatibility: The BP1SL is plug-in com pat i ble with Clear-Com and other pop u lar head set in ter com sys tems. Technical Specifications: (Sub ject to change with out no tice) Power re quire ment: 24~30VDC, 10mA qui es cent, 30mA max. (with sig nal lamp lit) Head phone out put: 8 ~ 4K ac cept able, 200 ideal Mi cro phone in put: 200~600 Dy namic; 1.2~1.8k electret Sidetone re jec tion: 50dB Au dio bridg ing im ped ance: 200 un bal anced Size: 3.70 x 4.30 x 2.50 in. (93.98 x x 63.5 mm) Weight:13.5oz.(0.383Kg.) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

14 BP1 Por ta ble Head set Sta tion (Beltpack) Per for mance Durability Value Compatibility Per for mance: The BP1 por ta ble head set sta tion may be worn on the belt or hung on the wall by its sturdy belt-clip. Soft plas tic strips on the un der side help hold it in place when set on top of a con sole. The matte black fin ish min i - mizes visibility. Fre quency re sponse has been care fully shaped to op ti mize both in tel li gi bil ity and long-term lis ten ing com fort. A mic. lim iter cir cuit re duces over load dis tor tion. The high bridg ing im ped ance en sures that sys tem and sidetone lev els do not vary as other sta tions are switched in and out of the cir cuit. The top (front) panel con tains con trols for switch ing the mi cro phone on and off, for con trol ling lis ten ing level, and for sig nal ing. They are eas ily iden ti fi able by touch, in the dark. A re cessed, screw driver-ad just con trol is pro vided for vary ing the level of the user s voice to be heard in his own ear phone (Sidetone). A long-life, ex tremely bright, 4-seg - ment LED serves as the sig nal light. The back (bot tom) panel pro vides a 3-pin fe male XLR for con nec tion to the sys - tem; a 3-pin male XLR for loop ing on wards to the next sta tion; a 4-pin male XLR for con nec tion of any stan dard com mu ni ca tions head set; and a switch for choos ing be tween dy namic or electret head set mi cro phone. Durability: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board; best-qual ity XLR-type con nec tors, and re cessed con trols, all con trib ute to the out stand ing abil ity of the BP1 to with stand rough us age. Value: The com par a tively low price of the BP1 is made pos si ble by the min i mized as sem bly cost re sult ing from sim - plic ity of de sign & con struc tion. Sim ple con struc tion also af fords the use of higher qual ity com po nents, and in creases the ease (thus low er ing the cost) of ser vic ing. Compatibility: The BP1 is plug-in com pat i ble with Clear-Com and other pop u lar head set in ter com sys tems Technical Specifications: (Sub ject to change with out no tice) Power re quire ment: 24~30VDC, 10 ma quiescent, 30mA max. (with sig nal lamp lit) Head phone out put: 8~4K acceptable, 200 ideal Mi cro phone in put: 200 Dy namic or 1.2K electret Sidetone rejection: >50dB Au dio bridg ing im ped ance: 200 un bal anced Size: 3.70 x 4.30 x 2.50 in. (93.98 x x 63.5 mm) Weight: 13.5 oz. (0.385Kg>) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

15 BP15 Miniature Portable Headset Station (Beltpack) Per for mance Durability Value Compatibility Per for mance: The BP15 con tin ues our tra di tion of su pe rior per for mance, now in a tiny pack age, 1/7th (0.15) the size of our BP1 (by vol ume). All the func tions of a full-sized belt pack are re tained. The sig nal but ton and the mic. On/Off but ton are shaped dif fer ently for easy rec og ni tion by touch, in the dark. Two LEDs are mounted, one to in di cate sig nal ing (red, bright) and one (green, low out put) to in di cate that the mi cro phone is On. The BP15 is avail able with an op tional vi bra tor in ad di - tion to the stan dard sig nal LED. The vol ume con trol is a thumbwheel, again re duc ing the like li hood of ac ci den tal dam age. There are two re cessed con trols. One con trols 'sidetone' - the sound of your own voice which you hear in your own earspeaker. The sec ond re cessed con trol ad justs the sen si tiv ity of the mi cro phone in put cir cuit to al low for dif fer ent out - puts of dy namic and electret mi cro phones. The mi cro phone in put cir cuit in cludes a lim iter which keeps the mi cro phone in put from be ing over loaded, caus ing dis tor tion. The am pli fier cir cuit de liv ers a crisp, clear sig nal to the earspeakers for ex cel lent speech rec og ni tion, but with a wide enough fre quency re sponse to min i mize the pos si bil ity of ear fa tigue dur ing a long per for mance. Min ia tur iza tion has its costs. The size will not ac com mo date the con ven tional three XLR jacks on the bot tom (rear) panel. The 4-pin head set jack had to be re tained but we have sub sti tuted a min ia ture XLR-type jack for the other two. The BP15 co mes with a ca ble con structed from a length of our steel re in forced ca ble with the min ia ture plug on one end and a 3-pin fe male XLR on the other. A sec ond ca ble is avail able with the min ia ture plug on one end feed ing into a Y with a male XLR on one leg and a fe male on the other for loop ing on ward to the next sta tion in the sys tem. Du ra bil ity: Our BP1 has a long reputation for ruggedness and reliability. The BP15 in corporates the very same charac - teristics that earned the BP1 those accolades. The cabinet is a strong, aluminum extrusion with internal ribbing which not only adds to its strength but provides for support of the printed circuit board along the full length of both sides. The durable end bezels deflect dam age. The same (almost in destructible) belt clip used on the BP1 is used on the BP15. Re al iz ing that belt packs are bound to live a rough life, we take every possible opportunity to secure components and 'ruggedize' the complete product. Value: Sim ple, quick as sem bly has kept the cost of the BP15 very com pet i tive. Use of only the best avail able com po - nents re sults in a low pre dicted in ci dence of war ranty re pairs - prob a bly the most im por tant cost sav ings of all. Compatibility: The BP15 is de signed to op er ate with all 18~30VDC, 200 un bal anced in ter com sys tems. Technical Specifications: Power re quire ment: 18~30VDC, 10mA quiescent 30 ma max, with both lamps lit. Head phone out put: 8~4K acceptable, 200 ideal Mi cro phone: Dy namic 200~600 Electret: 1.0~1.8k Au dio bridg ing im ped ance: 200 un bal anced Size: Case only: 3.4 x 2.1 x 0.9 in 8.6 x 5.3 x 2.3 cm Over all: 3.8 x 2.3 x 1.4 in 9.7 x 5.5 x 3.3 cm Weight: 4.8oz 136g Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.4_01.14

16 BP2 & BP2B True 2-Circuit Portable Headset Stations (Beltpacks) 4 Performance 4 Durability 4 Value 4 Compatibility Performance: The BP2 or BP2B portable headset station may be worn on the belt or hung on the wall by its sturdy belt-clip. Soft plastic strips on the underside help hold it in place when set on top of a console. The matte black finish minimizes visibility. Both are true 2-circuit units, permitting the user to talk and/or listen to either or both circuits simultaneously. Separate controls are provided for each circuit. The BP2 mixes the incoming audio from both circuits to one earphone. The BP2B supplies separate audio from each circuit to each ear (binaural). The top (or front) panel contains controls for switching each microphone circuit on and off, for controlling each listening level, and for signaling on each circuit. They are easily identifiable by touch. A recessed, screwdriver-adjust control is provided for varying the level of the user s voice to be heard in his own earphone (sidetone). The bottom (or back) panel provides two 3-pin female XLRs for connection to two circuits, and a male XLR for connection of any standard communications headset with a dynamic microphone. Since each of the two back panel 3-pin female XLRs are dedicated to one of the two circuits, it is not possible to loop-through these stations. To loop onwards requires a y-cable consisting of one 3-pin male XLR and two 3-pin female XLRs. The BP2 has a 4-pin headset connector; the BP2B has a 5-pin. Durability: The ribbed, extruded aluminum case; glass-filled nylon end bezels; internal support system for the PC board; best-quality XLR-type connectors, and; recessed controls, all contribute to the outstanding ability of the BP2 and BP2B to withstand rough usage. Value: The comparatively low prices of the BP2 and BP2B are made possible by the minimized assembly cost resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing. Compatibility: The BP2 and the BP2B are plug-in compatible with Clear-Com and other popular 200W unbalanced headset intercom systems. Technical Specifications: (Subject to change without notice) Power requirement: 24 ~ 30VDC, 10 ma quiescent, 30mA max. (with signal lamp lit) Headphone output: 8 ~ 4KW acceptable, 200W ideal Microphone input: 200 ~ 600W Dynamic Sidetone rejection: >50dB Audio bridging impedance: 200W unbalanced Size: 3.70 x 4.30 x 2.50 in. (93.98 x x 63.5 mm. Weight: 13.5 oz. (0.383 Kg.) PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.2_12.12

17 HS2 Fam ily Of Headset stations HS2MTL HS2T HS2 Per for mance: The HS2 Se ries con sists of the 3 prod ucts shown above, plus 1 more. The HS2MTL (shown up per left) in cludes a switch for choos ing be tween one of two cir cuits. It is also avail able with out the switch as the HS2TL. The HS2T is also available with this switch on spe cial or der. The HS2TL and HS2MTL are a com bi na tion of two well es tab lished prod ucts, the HS2 head set sta tion and the xe non (strobe) light el e ments from our Bla zon se ries. All HS2 ver sions pro vide the same fa cil i ties as our BP1 por ta ble head set sta tions (belt packs) but in a for mat suit able for flush mount ing (HS2), wall hang ing or the desk top. The heavy metal cab i net used by the T ver sions has key hole slots for wall mount ing and plas tic feet for the desk top. Fre quency re sponse has been care fully shaped to op ti mize both in tel li gi bil ity and long-term lis ten ing com fort. A mic lim iter cir cuit re duces over load dis tor tion. The high bridg ing im ped ance en sures that sys tem and sidetone lev els do not vary as other sta tions are switched in and out of the circuit. The front panel con tains con trols for switch ing the mi cro phone on and off, for con trol ling lis ten ing level, for sig nal ing, and for adjust ing the mic level to ac com mo date both dy namic and electret head set mi cro phones. A re cessed, screw driver-ad just con trol is pro vided for vary ing the level of the user s voice to be heard in his own ear phone (Sidetone). The HS2T has 3-pin XLR connectors on the rear (top) panel for con nec tion of the sta tion and daisy chain ing on to the next sta tion in the cir cuit. The HS2MT has 5-pin XLRs. The flush mount HS2 has a terminal strip on the rear and fits in a standard 2 gang electrical box. The mating plug is included. The head set or hand set con nects to the sta tion via a front-panel 4-pin XLR con nec tor. The Call but ton or the xe non lamp on the front pan els light when ever any one on the same cir cuit presses their sig nal light but ton. A built in timer keeps the xe non sig nal light cir cuit ac ti vated for 4 sec onds and the lamp has a 2 Hz fre quency, pro vid ing 7 to 8 flashes each time. The xe non lamps can be turned off, while the normal sig nal lamps con tinue to op er ate. Durability: The com po nent board of the HS2s are mounted to a thick metal mount ing plate. Long-life switches and con trols are used. The cab i nets are con structed to with stand the rug ged use as so ci ated with tour ing. All XLR connectors are genuine Neutrik. Value: Sim plic ity of de sign and con struc tion af fords the use of high qual ity com po nents while main tain ing a fa vor able cost/ben e fit ratio. Compatibility: The HS2 Se ries is com pat i ble with Clear-Com and other lesser-known (un bal anced 200 ) party-line head set in ter - com sys tems. Tech ni cal Spec i fi ca tions: (Sub ject to change with out no tice) Power re quire ment: 24 ~ 30 VDC, 10mA qui es cent, 40mA max. (with sig nal lamp lit) Headphone output: 8~4K acceptable, 200~400 ideal. Microphone input: 200~600 dy namic or 1.2K~1.8K electret Sidetone re jec tion: 50dB Audio bridging impedance: 200 unbalanced Size: 3.95 x 6.1 x 1.45 in. ( x x mm) Weight: 8.5 oz. (2.41 Kg) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercollc.com Skype: intercom4pros Rev.3_01.13

18 AD903 Input/Output (2 to 4 wire) Adapter 4 Performance 4 Durability 4 Value 4 Compatibility Performance: The AD903 allows the connection of almost any other audio device, input or output, to a cabled intercom system. Typical applications include: 1) feeding the signal from a stage microphone or audio mixer output into the intercom system so that intercom users can monitor the program from a distant point; 2) feeding the intercom conversations out to an audio amplifier, and; 3) connecting the intercom system to another intercom system which is operating on a different voltage or standard. The AD903 is connected into the intercom system as is a belt pack, via the 3-pin female XLR on the rear. A 3-pin male XLR is provided for looping onwards to the next station in the system. The AD903 is powered by the intercom power supply. Input and output are accessed via the 4-pin male XLR, also on the rear panel. Front panel high/low switches and 15-turn potentiometers allow the user to level-match virtually any input or output, from microphone level to line level. A third potentiometer is used to null the sidetone effect, reducing cross-talk. The input stage of the AD903 includes a studio-quality microphone transformer. The output is also transformer isolated. Frequency response has be carefully shaped to optimize both intelligibility and long-term listening comfort. Durability: The ribbed, extruded aluminum case; polypropylene end bezels; internal support system for the PC board; carefully mounted components; best-quality XLR-type connectors, and; recessed controls, all contribute to the outstanding ability of the AD903 to withstand rough usage. Value: The comparatively low price of the AD903 is made possible by the minimized assembly cost, resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing. Technical Specifications: (Subject to change without notice) Power requirement: VDC, ma Input: -60 to +30 dbm into 10K W nominal, balanced and floating Output: -60 to +30 dbm from 200 W nominal source, balanced and floating Sidetone rejection: 50 dba Audio bridging impedance (to the intercom system): 200W unbalanced Size: 3.70 x 4.30 x 2.50 in.(93.98 x x 63.5 mm) Weight:14.5 oz (0.411 Kg) PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) Rev.2_01.13 support@prointercomllc.com Skype: intercom4pros

19 AD913 Transceiver (Walkie-Talkie) Adapter 4 Performance Transceiver not included. 4 Durability 4 Value 4 Compatibility Performance: The AD913 permits communications between a cabled intercom system and any number of standard, simplex, (press-to-talk) transceivers. One of your transceivers is dedicated as base, and connected via its accessory mic/spkr jacks to the AD913. Transmissions from other transceivers (on the same frequency) are then heard at all intercom stations on the same circuit as the AD913. These stations may then transmit to the remote transceivers by simply pressing and holding their signal light button. The AD913 is connected to the intercom system as is a belt-pack, via the female 3-pin XLR on the rear. The AD913 is powered by the intercom power supply. Connection to the (base) transceiver is made through a 6-pin male XLR, also on the back panel. Pro Intercom can provide connecting cables for most popular makes of transceivers. The front panel contains two 15-turn potentiometers for matching the send and receive levels of the transceiver to the intercom system.the input stage of the AD913 includes a studio quality microphone transformer. The output is also transformer isolated. Frequency response has been carefully shaped to optimize both intelligibility and long-term listening comfort. Durability: The ribbed, extruded aluminum case; glass-filled nylon end bezels; internal support system for the PC board; carefully mounted components; best-quality XLR-type connectors; and recessed controls, all contribute to the outstanding ability of the AD913 to withstand rough usage. Value: The comparatively low price of the AD913 is made possible by minimized assembly cost resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing. Compatibility: The AD913 is plug-in compatible with Clear-Com and other popular headset intercom systems. The cable is NOT included with the AD913 as each is custom and must be ordered as a separate item. Technical Specifications: (Subject to change without notice) Power requirement: VDC, 15-25mA Input: 10K nominal, balanced and floating. Output: 200 nominal, balanced and floating. Open circuit in receive mode. P.T.T: Single pole contact, closed in transmit mode, rated 28VDC. Size: 3.70 x 4.30 x 2.50 in. (93.98 x x 63.5 mm) Weight: 15 oz.(0.425 Kg) PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.2_12.12

20 Product Description The first intercom systems used in entertainment applications were simply strings of telephone operator headsets strung together in parallel along a pair of wires powered by a set of batteries. There was no individual volume control and no signaling system. As electronic equipment began to be used on the stage and throughout the venues, these systems rapidly became inadequate. Two very similar looking but quite different standards began to emerge; one finding its dominant market in fixed venues and the other becoming the most popular for systems which were going to go on the road. The systems for fixed venues took advantage of the thousands of feet of twisted pair telephone wires already built into fixed venues. The other made use of the miles of 2-conductor shielded microphone cable that were required to stage a traveling show, could be strung very casually and even left lying on the ground for short periods. In the U.S. the best known manufacturer of the systems which operated on microphone cable was Clear-Com while the company dominating the twisted pair market was Telex. The type of wire being used wasn t the real issue, but the differences in the electronics required to take greatest advantage of each wire type. The twisted pairs did not offer the noise eliminating feature of a shield, and therefor had to run in a balanced mode to avoid interference pickup. The 2-conductor shielded microphone cable was much more expensive and rewiring a huge auditorium or sports facility could cost tens of thousands of dollars. However, its shield provided high degree of resistance to interference pickup. Many manufacturers adopted the Clear-Com unbalanced standard, including Pro Intercom, while Telex AudioCom retained its dominancy in the balanced market and does so even today. Along the way Telex purchased a company called RTS, which had developed but yet another standard and had captured the motion picture and broadcast markets. Telex and RTS have the same ownership, but only Audiocom uses the balanced standard and most of the newer Audiocom products will operate on either standard. The AD920 does not work with RTS products, only with Telex Audiocom being used in its balanced mode. In more modern times, the chances of a facility being pre-wired with miles of twisted pairs has diminished in favor of cat5, cat6 or fiber. Even earlier, many huge attractions had begun to appear in both indoor and outdoor environments. That raised the issue of integrating an indoor facility s Telex system with the show s Clear-Com system. They are incompatible in too many ways. The AD920 resolves that problem. The AD920 is powered by the circuits to which it is attached. It matches the unbalanced line to the balanced line and translates the signal activating voltage of the unbalanced system to the 20kHz tone used for signal activation in the balanced system and viceversa. There are no controls or adjustments. One AD920 is required for each circuit to be matched. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Printed in USA Rev

21 AD950 Telco In ter face Per for mance Durability Value Compatibility Performance: The AD950 was de signed to be a sim ple tele phone in ter face ded i cated spe cif i cally to con nect a Pro Intercom (or com pat i ble) in ter com sys tem to a tele phone line. The min i mum num ber of in di ca tors and switches have been used. It is pow ered by the in ter com power sup ply and the phone line and needs no AC adapter or other source. It con nects to the in ter com just as if it were an other in ter com beltpack via the rear panel 3-pin fe male XLR. A male XLR is pro vided for loop ing on wards to an other in ter com sta tion, in case it is more con ve nient to lo cate the tele phone con nec tion some where other than at the end of the sys tem. A dou ble RJ11 jack sits be tween the XLRs. One is used to con nect to a live telco jack while the other is used (if de - sired) to add an in ex pen sive tele phone so that its key pad can be used to ini ti ate the con nec tion from the in ter com site. The front panel has three LEDs: green to in di cate that DC power from the in ter com power sup ply is pres ent; yel - low to in di cate that the AD950 is On Hook (hung up); and red to in di cate that a call is be ing re ceived to ini ti ate con - nec tion to the in ter com. Con nec tion is made by sim ply mov ing the Hook switch from On to Off. To match the many tele phone line lev els which can oc cur in dif fer ent ven ues, a multi-turn Level con trol is pro vided, and to give it an even wider range of lev - els, a High-Low switch is fit ted. Once con nected, any stan dard tele phone, in clud ing cell phones, or a tele phone net - work can join the in ter com by sim ply di al ing the num ber of the tele phone con nec tion over a tele phone com pany's network. Du ra bil ity: The AD950 is built in ex actly the same cab i net used in our beltpacks, long known to be the most bul - let-proof in the in dus try. The in ter nal com po nents are also mounted in the same way to sur vive bumps and drops. The tough end be zels usu ally ab sorb most of the shock. The XLR connectors are genuine Neutrik. Value: Simplification and using components common to our BP1 beltpack and AD903 I/O adapter keep the cost of construction of the AD950 low, al low ing us to of fer it at an in dus try-lead ing price. Compatibility: The AD950 is compatible with any 200, unbalanced intercom system including Clear-Com. It is not compatible with Telex Audiocom or RTS. Fu ture ver sions may in clude auto-an swer and auto-hang-up as de - mand dic tates. Our first ob jec tive was the sim plest most cost-effective device possible. The AD950 is FCC PART 68 and Canadian IC compliant. Pro In ter com LLC Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

22 Blazon 3 Strobe Light and Annunciator Per for mance Durability Value Compatibility Per for mance: Bla zon 3 is trig gered by the same volt age which lights the nor mal sig nal lamps in the in ter com sys tem. When ever any sig nal lamp but ton on any sta tion in the same cir cuit is pressed, the Bla zon/3 will be ac - ti vated. The xe non lamp is per ma nently con nected. The au di ble an nun ci a tor may be switched among con - stant, pulsed, and off. Cir cuitry is pro vided to sus tain the Bla zon 3 for 4 sec onds af ter be ing trig gered. The xe non lamp has a flash rate of 2Hz, pro vid ing 8 flashes per cy cle. The Bla zon 3 is con nected to the head set in ter com sys tem in the same man ner as a belt pack. It has two 3-pin XLR con nec tors on the rear panel. By con ven tion (to dif fer en ti ate from mi cro phone in puts) the fe male con nec - tor is des ig nated as in put. The male con nec tor is pro vided for loop ing on wards to the next sta tion in the sys - tem. Re vers ing these con nec tions will not af fect op er a tion. Bla zon 3 is pow ered by the in ter com power sup ply and re quires no bat ter ies or other ex ter nal power source. In its Ready mode it draws only 21.1mA; with the strobe ac tive, 56mA, and; with the strobe and au di ble an nun ci - a tor, only 108mA. When cal cu lat ing power sup ply re quire ments, you may con sider the Bla zon 3 as the ap - prox i mate equiv a lent of 3 or 4 belt packs. Du ra bil ity: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board, and; best qual ity XLR-type con nec tors, all con trib ute to the Bla zon 3 s abil ity to with stand rough us - age. Value: The com par a tively low price of the Bla zon 3 is made pos si ble by the min i mized as sem bly cost re sult ing from sim plic ity of con struc tion. Com pat i bil ity: Bla zon 3 is com pat i ble with Clear-Com and other lesser known (un bal anced 200 ) party-line head set in ter com sys tems. Technical specifications: (Sub ject to change with out no tice) Sup ply volt age: 24 ~ 30 VDC nom i nal Switch-on volt age: 8 Volts min i mum Switch-off volt age: 5 Volts max i mum Switch-on time: 75 mil li sec onds Switch-off time: 4 sec onds Flash rate: 2Hz / Flash power: 0.75 joules In put im ped ance: 1 Meg Power con sump tion: Ready mA Strobe only - 56 ma Strobe & An nun ci a tor - 108mA Size: 3.70x4.30x5.80 in. (93.98x109.22x mm) Weight 20oz. (0.567Kg) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

23 Blazon 4 Xenon Strobe Light Per for mance Durability Value Compatibility Per for mance: Bla zon 4 is trig gered by the same volt age which lights the nor mal sig nal lamps in the in ter com sys tem. When ever any sig nal lamp but ton on any sta tion in the same cir cuit is pressed, the Bla zon 4 will be ac ti vated. The xe non lamp is per ma nently con nected. Cir cuitry is pro vided to sus tain the Bla zon 4 for 4 sec onds af ter be ing trig gered. The xe - non lamp has a flash rate of 2Hz, pro vid ing 8 flashes per cy cle. The Bla zon 4 is con nected to the head set in ter com sys tem in the same man ner as a belt pack. It has two 3-pin XLR con - nec tors on the rear panel. By con ven tion (to dif fer en ti ate from mi cro phone in puts) the fe male con nec tor is des ig nated as in put. The male con nec tor is pro vided for loop ing on wards to the next sta tion in the sys tem. Re vers ing these con nec tions will not af fect op er a tion. Bla zon 4 is pow ered by the in ter com power sup ply and re quires no bat ter ies or other ex ter nal power source. In its ready mode it draws only 21.1mA; with the strobe ac tive, 120mA. When cal cu lat ing power sup ply re quire ments, you may con - sider the Bla zon 4 as the ap prox i mate equiv a lent of 3 or 4 belt packs. Durability: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board, and; best qual ity XLR-type con nec tors, all con trib ute to the Bla zon 4 s abil ity to with stand rough us age. Value: The com par a tively low price of the Bla zon 4 is made pos si ble by the min i mized as sem bly cost re sult ing from sim - plic ity of con struc tion. Compatibility: Bla zon 4 is com pat i ble with Clear-Com and other lesser known (un bal anced 200 ) party-line head set in ter com sys tems. Technical specifications: (Sub ject to change with out no tice) Sup ply volt age: 24 ~ 30 VDC nom i nal Switch-on volt age: 8 Volts min i mum Switch-off volt age: 5 Volts max i mum Switch-on time: 75 mil li sec onds Switch-off time: 4 sec onds Flash rate: 2Hz Flash power: 0.75 joules In put im ped ance: 1 Meg Power con sump tion: Ready mA Strobe only - 68 ma Size: 3.70x4.30x5.80 in. (93.98x109.22x mm) Weight 20oz. (0.567Kg) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

24 Blazon 180 Xenon Signal Per for mance Durability Value Compatibility Performance: The Bla zon 180 in cor po rates a front mounted rect an gu lar xe non lamp to limit the vis i bil ity of the flashes to 180. Bla zon 180 is trig gered by the same volt age which lights the nor mal sig nal lamps in the in ter com sys - tem. When ever any sig nal lamp but ton on any sta tion in the same cir cuit is pressed, the Bla zon 180 will be ac ti vated. The xe non lamp is per ma nently con nected. Cir cuitry is pro vided to sus tain the Bla zon 180 for 4 sec onds af ter be ing trig gered. The xe non lamp has a flash rate of 2Hz, pro vid ing 8 flashes per cy cle. The Bla zon 180 is con nected to the head set in ter com sys tem in the same man ner as a belt pack. It has two 3-pin XLR con nec tors on the rear panel. By con ven tion (to dif fer en ti ate from mi cro phone in puts) the fe male con nec tor is des ig nated as in put. The male con nec tor is pro vided for loop ing on wards to the next sta tion in the sys tem. Re vers ing these con nec - tions will not af fect op er a tion. Bla zon 180 is pow ered by the in ter com power sup ply and re quires no bat ter ies or other ex ter nal power source. In its ready mode it draws only 21.1mA; with the strobe ac tive, 120mA. When cal cu lat ing power sup ply re quire ments, you may con sider the Bla zon 180 as the ap prox i mate equiv a lent of 3 or 4 belt packs. Du ra bil ity: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board, and; best qual ity XLR-type con nec tors, all con trib ute to the Bla zon 180 s abil ity to with stand rough us age. Value: The com par a tively low price of the Bla zon 180 is made pos si ble by the min i mized as sem bly cost re sult ing from sim plic ity of con struc tion. Com pat i bil ity: Bla zon 180 is com pat i ble with Clear-Com and other lesser known (un bal anced 200 ) party-line head - set in ter com sys tems. Tech ni cal spec i fi ca tions: (Sub ject to change with out no tice) Sup ply volt age: 24 ~ 30 VDC nom i nal Switch-on volt age: 8 Volts min i mum Switch-off volt age: 5 Volts max i mum Switch-on time: 75 mil li sec onds Switch-off time: 4 sec onds Flash rate: 2Hz / Flash power: 0.75 joules In put im ped ance: 1 Meg Power con sump tion: Ready mA With strobe - 68 ma Size: 3.70x4.30x5.80 in. (93.98x109.22x mm) Weight 20oz. (0.567Kg) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

25 MC10 Multi-Circuit Se lec tor Switch Per for mance Du ra bil ity Value Com pat i bil ity Performance: The MC10 is the truly pro fes sional way to pro vide ac cess to as many as 4 in ter com cir cuits at a re mote lo ca tion. A head set sta tion (belt pack) plugged into the 3-pin XLR on the MC10 will be con nected to the cir cuit cho sen by ro tat ing the se lec tor switch. This make-be fore-break ro tary switch con nects the belt pack to the new cir cuit be fore dis con nect ing it from the cur rent one - pro vid - ing a smooth, squeal-free tran si tion. A ca pac i tor is pro vided to iso late the cir cuit ground from true ground, help ing to elim i nate pop and RF in ter fer ence. The se lec tor switch is fac tory set for 2 cir cuits but may be changed to 3 or 4. Cir cuit ca bling is con nected to the MC10 via 12-po si tion screw-ter mi nal strips on the rear of the PC board. Ei ther side may be used to con nect the cir cuits, with the other side then be ing used to ca ble on wards to the next lo ca tion, if re quired. The nor mal con fig u ra tion as sumes that all con nected cir cuits are pow ered by the same power sup ply or mas ter sta tion. There fore the ter mi nals re lat ing to pins one and two of the XLR are com mon across the four cir cuits. In the event that the lo ca tion be ing served needs to switch be tween two or more com pletely sep a rately pow ered sys tems, links on the PC board may be re moved with a sharp blade. When the links have been re - moved, all three con nec tion points (X, L & R) are then switched. (For a fuller dis cus sion of in ter com ca bling ask us for the ap pli ca tion note on that topic.) The MC10 is de signed to fit in a stan dard sin - gle-gang elec tri cal box. Where con duit and out let boxes are not avail able, the MC10 will fit per fectly into a Wiremold sur face mount box. Wiremold prod ucts are readily avail able in elec tri cal sup ply and most hard ware stores. Du ra bil ity: Only the best avail able parts are used in as sem bling the MC10, in clud ing a make-be - fore-break switch rated at 10,000 cy cles and a best-qual ity Neutrik XLR con nec tor. Value: The MC10 costs no more than con ven tional switch plates con sist ing of low-cost tog gle switches and bud get XLRs. Com pat i bil ity: The MC10 is com pat i ble with Clear-Com and other pop u lar, 200 unbalanced party-line headset intercom systems. Pro In ter com LLC Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

26 SB-1 Splitter/Isolator 1 into 4 or 1 into 2+2 Per for mance Durability Value Compatibility Per for mance: The SB-1 pro vides a con ve nient method of split ting a sin gle cir cuit run into as many as 4 spurs. It has one in put and four out put XLR con nec tions. One ca ble run from a sys tem mas ter or power sup ply can be run to a re mote lo ca - tion then be split among sev eral sta tions. Daisy chain ing can be min i mized, elim i nat ing the need for two ca bles be ing con - nected to belt packs. Most sys tem mas ters and power sup plies pro vide a max i mum of three con nec tions per cir cuit. SB-1 s can be used at the sys tem mas ter or power sup ply lo ca tion to mul ti ply the num ber of home-run con nec tions which can be made to each cir - cuit. The SB-1 is equipped with an Iso late but ton. When this but ton is de pressed, two of the XLR out put con nec tions are iso - lated from the in com ing com mu ni ca tions cir cuit, while power is passed through to a newly formed cir cuit. In ter nal com po - nents pro vide the nec es sary ter mi na tion cir cuitry for the new cir cuit. Durability: The ribbed, ex truded alu mi num case; glass-filled ny lon end be zels; in ter nal sup port sys tem for the PC board; best-qual ity XLR-type con nec tors, and; long-life switches, all con trib ute to the out stand ing abil ity of the SB-1 to with stand rough us age. Value: The com par a tively low price of the SB-1 is made pos si ble by the min i mized as sem bly cost re sult ing from sim plic ity of con struc tion. Sim ple con struc tion also af fords the use of higher qual ity com po nents, and in creases the ease (thus low - er ing the cost) of ser vic ing. Compatibility: The SB-1 is plug-in com pat i ble with Clear-Com and other, lesser known (200, un bal anced) party-line head set in ter com sys tems. Tech ni cal Spec i fi ca tions: (Sub ject to change with out no tice) Au dio bridg ing im ped ance: 200 un bal anced Size: 3.70 x 4.30 x 2.50 in. (93.98 x x 63.5 mm.) Weight: 13.5 oz. (0.383Kg) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.4_12.12

27 LS3 Series Smart Talkback Loudspeaker Stations 4 Performance 4 Durability 4 Value 4 Compatibility LS3T shown. Also available as flush mount (LS3), rack-mount (LS3R) and multi-circuit versions (LS3M, LS3MT & LS3MR). Mic not included. Performance: LS3 series Talkback Loudspeaker Stations operate in three different modes: 1) press-to-talk/release-to-listen, using the loudspeaker as both microphone and speaker; 2) Simultaneous talk and listen [full duplex] when a noise-canceling gooseneck microphone is plugged into the front panel, and; 3) as a headset or handset station when either is plugged into the front panel XLR. Caution: When the LS3 is used in its press-to-talk, release-to-listen mode, locating 2 units close together will result in feedback. Modes 2 and 3 are invoked automatically when the unit senses the presence of the gooseneck microphone, headset, or handset. No switching is required. A 3 Watt audio amplifier and quality loudspeaker provide highly intelligible, full-range reproduction. Front panel controls provide for turning the microphone on or off (the gooseneck microphone or the microphone in the headset/handset); a volume control which regulates the level of the loudspeaker or in the earspeaker in the headset/handset; a combination signal lamp/signal button; a 3-position off-listen-talk switch; a recessed control for setting the level of the gooseneck microphone to be heard in the loudspeaker (sidetone); a recessed control for setting the loudspeaker volume in override mode, and; an LED to indicate when override has been remotely activated. LS3 stations include unique circuitry which permits the front panel controls to be overridden from a remote source when the remote source is fitted with an override generator card (standard in MS300 & MS301 Master Stations). Volume can be restored, and the LS3 switched from Off to Talk or Listen. Typically this feature is used to restore volume at an LS3 in a remote location where it may have been turned down or off, but other combinations are also possible. The override mode is set up by removing links on the PC board except for the volume level which is established by setting the front panel recessed control marked Override. Durability: The heavy aluminum front plate resists bending and twisting. The lever switches are of best American manufacture. The signal lamp button is Swiss made and rated for millions of cycles. The T backbox is heavy gauge steel. Value: Multi-mode capability, full-duplex, hands-free operation (without feedback) and a unique override facility all come at a price equivalent to ordinary loudspeaker stations. Compatibility: LS3 s are compatible with Clear-Com and other popular (200 unbalanced) party-line headset intercom systems. Override capability is limited to operation within a Pro Intercom system. Technical specifications: (Subject to change without notice) Power required: 24~30 VDC, 40~160 ma (depending upon volume level) Microphone: 200 ~ 600 unbalanced dynamic Audio Output: Speaker - 3W max. 96dB SPL at 1 m. Headset: 200 to 400 Line Bridging Impedance: Audio - 200, DC - 5K Size: (LS3 Only) [W x H x D] 11.6x4.55x1.8 in. (295x116x46mm.) Weight: 1.25 lbs. (.7 kg) PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) support@prointercomllc.com Skype: intercom4pros Fax: +1 (815) Rev.3_01.13

28 TR-1 Tal ent Re ceiver (IFB) Per for mance Durability Value Compatibility Performance: The TR-1 is the small est, light est pack age we could de sign with out mak ing it im pos si ble to ma nip u late while in a hurry, or in the dark. On the top (or front) panel there are in puts for both ¼" and 3.5mm plugs and a ro tary vol - ume con trol which can be turned down, but not all the way off. In ter nal jump ers al low the tech ni cian to set the low est level pre ferred. The bot tom (or rear) panel fea tures a green LED in di cat ing that the unit is con nected to the sys tem and is re ceiv ing the re quired 18~30 VDC from the power sup ply. A sec ond LED, red, flashes, in di cat ing that au dio traf fic is be ing re ceived. An ex ter nal but re cessed switch al lows the tech ni cian to choose be tween sin gle and two chan nel op er a tion. Con nec tion to the IFB cir cuit is made us ing the TR-1 s re mov able/re place able ca bles that ter mi nate ei ther in a 3-pin fe - male or a 3-pin male XLR or, pro vided with a ca ble which Ys, both. They are avail able in a va ri ety of lengths. Con nec tion to the TR-1 is via a 3-pin mini XLR. The ac tual ca ble used is the steel re in forced type that has proven its strength on our 200 se ries head sets for the past many years. Du ra bil ity: Long the in dus try's du ra bil ity leader, we have ap plied our years of ex pe ri ence in build ing tough, hard-wear - ing prod ucts to the cre ation of the TR-1. It is housed in an ex truded metal cab i net with in te rior rib bing to add to struc tural strength and to pro vide sup port down both sides of the printed cir cuit board. Re sil ient plas tic be zels pro tect the ends. Only the best qual ity printed cir cuit board ma te rial is used and com po nents are mounted ex tra-se curely. The con nec tors and con trols are of pro fes sional qual ity. Value: The sim plic ity of as sem bly leads to max i mized pro duc tiv ity. Qual ity of the com po nents and du ra bil ity of the fin - ished prod uct re sult in low an tic i pated war ranty re pair and re place ment costs. The re sult ing price is sur pris ingly low, par - tic u larly for a prod uct with in dus try-lead ing fea tures and func tions. A lim ited, 3-year, quib ble-free war ranty ap plies. Com pat i bil ity: In ad di tion to the com pat i bil i ties de scribed above, in ter nal jump ers will al low the TR-1 to in ter face with a host of other pres ent and ear lier IFB con fig u ra tions, in clud ing those with op er at ing cur rent on Pin 3, but ex clud ing bal - anced sys tems. Technical Specifications: (Sub ject to change with out no tice) Power re quire ment: 18~30 VDC, 30mA (@max vol ume) Earpiece Out put: 8~4k ac cept able, 200 ideal Au dio bridg ing im ped ance: 200 un bal anced Size: Case only: 3.4 x 2.1 x 0.90 in Over all: 4.0 x 2.3 x 1.3 in. 8.6 x 5.3 x 2.3 cm 10.2 x 5.8 x 3.3 cm Weight: 4 oz. (113g) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

29 TT1 Portable Headset Station With Program Input (Also used as an IFB mini-master) 4 Performance 4 Durability 4 Value 4 Compatibility Performance: The TT1 has two applications: a) It was designed to be used as a beltpack in an intercom system with the facility to inject program material onto the intercom channel to which it is connected; b) or to function as a portable master station for a compact IFB system. Whether the program material is a local audio source or an IFB feed, it is inserted via the combo XLR/¼in. jack on the rear panel. Connection to the intercom system or the IFB talent receivers is made at the female 3-pin XLR on the rear panel. A 4-pin male XLR is provided for connection of a standard intercom headset with a dynamic microphone. A modification to allow use of a headset with an electret microphone is available. Control of the level of the program material to be heard in the system is by a rotary control on the front panel. A true VU meter (LED-type) is provided on the front panel to monitor the program input. A recessed control on the front panel permits adjustment of the VU meter sensitivity.the LEDs are bright and easily visible in daylight. Control of the user s headset volume is by a thumbwheel. A green LED confirms that the TT1 is receiving DC voltage from the intercom or IFB power supply. When used as an intercom beltpack, power will be provided by the intercom system s power supply. When used as an IFB mini-master, power will come from the IFB power supply. When used as a mini-master in a portable stand-alone IFB system, power will come from an AC adapter through an accessory which regulates and filters the power for ultra quiet operation, or from a battery accessory. The talk button is momentary in stock form, but can be modified to be latching. A separate button allows the user to choose to talk over the program material, or to interrupt the program material while the talk button is pressed. Pro Intercom users will recognize the sound quality of the communications audio. The pass-through of the program material is also clean and wide enough in frequency response to be listenable for long periods. Durability: The TT1 is built in our standard aluminum enclosure with end bezels made of an impact resistant compound. Inside, the PC board is supported along both sides by slots in the aluminum extrusion and at the rear by the metal XLR frames and the rear panel. The only point of vulnerability on this particular product is the protruding program level control knob. Value: Even though it s a special applications product, the TT1 is built around our standard BP1 beltpack and so benefits from the high production quantities of that product. Compatibility: The TT1 is plug-in compatible with Clear-Com and other lesser known 200W (unbalanced) party-line intercom systems. PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) support@prointercomllc.com Skype: intercom4pros Fax: +1 (815) Rev.4_01.13

30 BP.15 Miniature Portable Headset Station (Belt Pack) Per for mance Durability Value Compatibility Per for mance: The BP.15 con tin ues our tra di tion of su pe rior per for mance, now in a tiny pack age, 1/7th (0.15) the size of our BP1 (by vol ume). All the func tions of a full-sized belt pack are re tained. The sig nal but ton and the mic. On/Off but ton are shaped dif fer - ently for easy rec og ni tion by touch, in the dark. Two LEDs are mounted, one to in di cate sig nal ing (red, bright) and one (green, low out put) to in di cate that the mi cro phone is On. The BP.15 is avail able with an op tional vi bra tor in ad di tion to the stan dard sig nal LED. The vol ume con trol is a thumbwheel, again re duc ing the like li hood of ac ci den tal dam age. There are two re cessed con trols. One con - trols 'sidetone' - the sound of your own voice which you hear in your own earspeaker. The sec ond re cessed con trol ad justs the sen si - tiv ity of the mi cro phone in put cir cuit to al low for dif fer ent out puts of dy namic and electret mi cro phones. The mi cro phone in put cir cuit in cludes a lim iter which keeps the mi cro phone in put from be ing over loaded, caus ing dis tor tion. The am pli fier cir cuit de liv ers a crisp, clear sig nal to the earspeakers for ex cel lent speech rec og ni tion, but with a wide enough fre quency re sponse to min i mize the pos si bil ity of ear fa tigue dur ing a long per for mance. Min ia tur iza tion has its costs. The size will not ac com mo date the con ven tional three XLR jacks on the bot tom (rear) panel. The 4-pin head set jack had to be re tained but we have sub sti tuted a min ia ture XLR-type jack for the other two. The BP.15 co mes with a ca ble con structed from a length of our steel reinforced ca ble with the min ia ture plug on one end and a 3-pin fe male XLR on the other. A sec ond ca ble is avail able with the min ia ture plug on one end feed ing into a Y with a male XLR on one leg and a fe male on the other for loop ing on ward to the next sta tion in the sys tem. Durability: Our BP1 has a long rep u ta tion for rug ged ness and re li abil ity. The BP.15 incorporates the very same characteristics that earned the BP1 those ac co lades. The cab i net is a strong, alu mi num ex tru sion with in ter nal rib bing which not only adds to its strength but pro vides for sup port of the printed cir cuit board along the full length of both sides. The du ra ble end be zels de flect dam age. The same (al most in de struc ti ble) belt clip used on the BP1 is used on the BP.15. Re al iz ing that belt packs are bound to live a rough life, we take ev ery pos si ble op por tu nity to se cure com po nents and 'ruggedize' the com plete prod uct. Value: Sim ple, quick as sem bly has kept the cost of the BP.15 very com pet i tive. Use of only the best avail able com po nents re sults in a low pre dicted in ci dence of war ranty re pairs - prob a bly the most im por tant cost sav ings of all. Compatibility: The BP.15 is de signed to op er ate with all 18~30VDC, 200 un bal anced in ter com sys tems. Technical Specifications: Power re quire ment: 18~30VDC, 10mA quiescent 30 ma max, with both lamps lit. Head phone out put: 8~4K acceptable, 200 ideal Mi cro phone: Dy namic 200~600 Electret: 1.0~1.8k Au dio bridg ing im ped ance: 200 un bal anced Size: Case only: 3.4 x 2.1 x 0.9 in 8.6 x 5.3 x 2.3 cm Over all: 3.8 x 2.3 x 1.4 in 9.7 x 5.5 x 3.3 cm Weight: 4.8oz 136g Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) support@prointercomllc.com Skype: intercom4pros Rev.2_11.12

31 AD903 Input/Output (2 to 4 wire) Adapter 4 Performance 4 Durability 4 Value 4 Compatibility Performance: The AD903 allows the connection of almost any other audio device, input or output, to a cabled intercom system. Typical applications include: 1) feeding the signal from a stage microphone or audio mixer output into the intercom system so that intercom users can monitor the program from a distant point; 2) feeding the intercom conversations out to an audio amplifier, and; 3) connecting the intercom system to another intercom system which is operating on a different voltage or standard. The AD903 is connected into the intercom system as is a belt pack, via the 3-pin female XLR on the rear. A 3-pin male XLR is provided for looping onwards to the next station in the system. The AD903 is powered by the intercom power supply. Input and output are accessed via the 4-pin male XLR, also on the rear panel. Front panel high/low switches and 15-turn potentiometers allow the user to level-match virtually any input or output, from microphone level to line level. A third potentiometer is used to null the sidetone effect, reducing cross-talk. The input stage of the AD903 includes a studio-quality microphone transformer. The output is also transformer isolated. Frequency response has be carefully shaped to optimize both intelligibility and long-term listening comfort. Durability: The ribbed, extruded aluminum case; polypropylene end bezels; internal support system for the PC board; carefully mounted components; best-quality XLR-type connectors, and; recessed controls, all contribute to the outstanding ability of the AD903 to withstand rough usage. Value: The comparatively low price of the AD903 is made possible by the minimized assembly cost, resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing. Technical Specifications: (Subject to change without notice) Power requirement: VDC, ma Input: -60 to +30 dbm into 10K W nominal, balanced and floating Output: -60 to +30 dbm from 200 W nominal source, balanced and floating Sidetone rejection: 50 dba Audio bridging impedance (to the intercom system): 200W unbalanced Size: 3.70 x 4.30 x 2.50 in.(93.98 x x 63.5 mm) Weight:14.5 oz (0.411 Kg) PO Box 7035 Algonquin Illinois Phone: +1 (815) Orders and Tech support: (888) Fax: +1 (815) Rev.2_01.13 support@prointercomllc.com Skype: intercom4pros

32 200 Se ries Communications Head sets Per for mance Durability Value Compatibility Performance: Exceptionally high quality transducers provide wide smooth frequency response, re - duc ing the on set of ear fa tigue for those who must spend many hours wear ing head sets. Deep, com - fortable ear cushions have excellent external noise exclusion characteristics, and are washable with or di nary dish wash ing de ter gent. At 7.35 oz. the SMH210, and at 8.75oz the DMH220, (shown above) are much lighter than their ap pear ances sug gest. The noise-can cel ing mi cro phone is mounted on a flex i ble, steel re in forced boom which can be eas ily twisted into a com fort able po si tion. The flex i ble headband is adjustable. The normal transducer configuration for use with Pro In ter com and compatible headset intercom systems are 400 earspeakers and a 200 dy namic mi cro phone. Electret mi cro - phones and lower im ped ance earspeakers for other ap pli ca tions are also avail able, and com bi na - tions of these trans duc ers make up the var i ous mod els. For use with Pro In ter com and most head set communications systems the SMH210 and DMH220 are fit ted with a 4-pin fe male XLR-type plug. For other appliations many dif fer ent plugs are avail able. Du ra bil ity: Be cause these head sets have only one mov ing part, and the mi cro phone boom is flex i ble rather than hinged, a re mark able de gree of du ra bil ity is achieved. The light-weight ca ble con sists of a cop per shield around steel re in forced con duc tors, and is vir tu ally un break able un der nor mal cir cum - stances. The as sem bly screws are hid den to pre vent tam per ing. These head sets are eas ily field re - pairable. Pro In ter com main tains a full in ven tory of re place ment parts at rea son able prices and pro vides fast turn around on re pairs. Value: Low initial cost (compared to other professional communications headsets of equivalent quality), com bines with long work ing life and low cost of re pairs to of fer out stand ing value. Technical specifications: (Subject to change with out no tice) Dy namic Mi cro phone: Uni-Di rec tional Freq. re sponse: 40~15kHz Electret Mi cro phone: Noise cancelling 2.2k Freq. re sponse: 40~18kHz Earspeakers: 1kHz Freq. re sponse: 40~14.4kHz Sen si tiv ity: 94dB 1mW Dis tor tion: Less than 0.5% Ca ble length: 59 in. (1.5 m.) Steel re in forced Approx. weights: SMH oz, DMH oz. Pro In ter com LLC Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

33 SMH310 and DMH320 Communications Head sets Per for mance Durability Value Compatibility Performance: These light, com fort able head sets are equipped with high qual ity trans duc ers for smooth re - sponse and pleas ant lis ten ing. The soft, tex tured muffs are re mov able and wash able. The mech a nism for adjusting size al lows for a wide range, and is both sim ple and sturdy. The mi cro phone is mounted on a thin flex - i ble gooseneck boom that also swiv els at the ear cup and can be swung up out of the way. The mi cro phone can be ad justed to be very close to the mouth for sit u a tions where quiet or dis crete ness are im por tant. The thin, flex - i ble ca ble does not tug on the head set and can be clasped out of the way with our op tional cloth ing clip. Du ra bil ity: The SMH310 and DMH320 have a min i mal num ber of mov ing parts. Each of the pivot points has been strength ened. The flex i ble gooseneck bends rather than breaks. The muff, along with its frame, pops off the ear cup for al most in stant clean ing or re place ment. Our al ways-gen er ous re pair pol icy ap plies to these mod - estly priced head sets as well. Value: These head sets rep re sent an out stand ing value, cost ing con sid er ably less than any other ma jor brand of full-sized com mu ni ca tions head set. When long working-life expectations and repair-ability are factored in, the value is even fur ther en hanced. Com pat i bil ity: The SMH310 and DMH320 are com pat i ble with Clear-Com as well as other, lesser-known, head set com mu ni ca tions sys tems. The stan dard 4-pin fe male XLR-type con nec tor is in cluded, but we will gladly fit the ap pro pri ate plug for any other sys tem at a rea son able cost. Spec i fi ca tions: (Sub ject to change with out no tice) Ear speaker im ped ance: 200 ± 15% Rated power in put: 300 mw Max. power in put: 100 mw Fre quency re sponse: 30~12kHz S.O.P: >3% S.P.L: 97dB ± 3dB Mi cro phone: Dy namic, in (21mm) 200 Mic. Boom: in (4.5mm) di am e ter gooseneck tube Cord: Straight, 6.56 ft. (2m) Head band ad just: ABS click-type Net weight: Pro In ter com LLC Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

34 SMH710 Lightweight Communications Head set Per for mance Durability Value Compatibility Performance: The SMH710 is a light weight ver sion of our long-time prod uct, the SMH310. The con struc tion, though smaller, is very sim i lar. At 3.88 oz. (0.11kg) it is among the light est head sets suit able for in ter com that is avail able, and far more com fort able than the most com monly avail able light weights. Be cause it has a dy namic mi - cro phone it is suit able for all in ter com sta tions, old and new. The mi cro phone arm is a flex i ble gooseneck and has a swivel mount, per mit ting a wide range of po si tion ing. The head set co mes with a foam mi cro phone pop fil ter The SMH710 is for left side use only. The ear cush ions, be ing smaller, sit on the ear rather than around it. They can be cleaned and can be eas ily and in ex pen sively re placed. The head band is ad just able and pad ded. On the earspeaker side the ad just ment in volves click ing the fit ting up and down. For larger sizes the pad on the far side can be ad justed by re mov ing a small screw and re set ting the pad po si tion. Du ra bil ity: The SMH710 has a min i mal num ber of mov ing parts. Each of the pivot points has been strength ened. The flex i ble gooseneck bends rather than breaks. The muff peels off the ear cup for al most in stant clean ing or re - place ment. Our al ways-gen er ous re pair pol icy ap plies to these mod estly priced head sets as well. Value: This head sets rep re sent an out stand ing value, cost ing con sid er ably less than any other ma jor brand of in ter - com-suitable lightweight communications headset. When long working-life expectations and repair-ability are fac - tored in, the value is even fur ther en hanced. Com pat i bil ity: The SMH710 is com pat i ble with Clear-Com as well as other, lesser-known, head set com mu ni ca - tions sys tems. The stan dard 4-pin fe male XLR-type con nec tor is in cluded, but we will gladly fit the appropriate plug for any other sys tem at a rea son able cost. Spec i fi ca tions: (Sub ject to change with out no tice) Ear speaker (40mm) im ped ance: 400 ± 15% Rated power in put: 300 mw Max. Peak power in put: 100 mw Fre quency re sponse: 20~20kHz S.O.P: < 3% S.P.L: 106dB ± 4dB Mi cro phone: Dy namic, in (19mm) 200 Mic. Boom: in (4.5mm) di am e ter gooseneck tube Cord: Straight, 6.56 ft. (2m) Head band ad just: ABS click-type Net weight: 3.88oz (0.11kg) Freq. Re sponse from dig i tal au dio analyser CLIO Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.3_01.13

35 900 Se ries Communications Head sets Per for mance Durability Value Compatibility Per for mance: Ex cep tion ally high qual ity transducers provide wide smooth frequency response, reducing the on set of ear fa tigue for those who must spend many hours wear ing head sets. Deep, com fort able ear cush ions have ex cel lent ex ter nal noise ex clu sion char ac ter is tics, and are wash able with or di nary dish wash ing de ter gent. At 10.8oz (.306kg), in clud ing the ca ble and XLR, the SMH910 (shown above) is much lighter than its ap pear ance sug gests. Even the dual muff ver sion, DMH920, weighs in at only 15.3oz (.435kg). The noise-can cel ing mi cro - phone is mounted on a flex i ble, steel re in forced boom which can be bent for op ti mum po si tion ing. The boom swings up out of the way when re quired and shuts the mi cro phone off at the top of the swing. The boom can be re versed for use on the right side. The flex i ble head band is ad just able. The nor mal trans ducer con fig u ra tion for use with Pro Intercom and com pat i ble head set in ter com sys tems is 400 earspeaker(s) and a 200 dy namic mi cro phone. Electret mi cro phones and both 50 and 100 earspeakers are also avail able for var i ous other ap pli - ca tions. The stan dard ver sion co mes with a 4-pin fe male XLR-type plug but other con fig u ra tions are avail able. The mi cro phone in the stan dard ver sion is wired un bal anced but it can eas ily be bal anced for au dio or broad cast ap pli ca tions. Du ra bil ity: All head sets are the most vul ner a ble to dam age at the point where the boom con nects with the ear cup. The in ge nious way in which the boom swiv els on the 900 se ries of fers a whole new level of lon gev ity. The in ter nal switch, which mutes the mi cro phone at the top of the boom s arc, is rated for mil lions of op er a tions. The as sem bly screws are hid den to pre vent tam per ing. These head sets are eas ily field re pair able. Pro Intercom main tains a full in ven tory of re place ment parts at rea son able prices and pro vides fast turn around if re pairs ever be come nec es sary. Value: These fully fea tured pro fes sional head sets are priced com pet i tively with head sets of fer ing lesser per for - mance and greater fra gil ity. These com bine with long work ing life and low cost of re pairs to of fer out stand ing value. Com pat i bil ity: 900 se ries head sets are com pat i ble with Clear-Com and all other pop u lar head set in ter com sys - tems, and are eas ily con fig ured for other ap pli ca tions. Tech ni cal Spec i fi ca tions: (Sub ject to change with out no tice) Earspeakers: 400 dy namic 40~14.4kHzHz SPL: 94 db Con tin u ous power: 100mW Ex ter nal noise iso la tion: ca. 18 dba Mi cro phone: Dy namic, cardioid, 40-15,000Hz 100 (200 ) bal anced Front to back: >15dB Close talk ing sen si tiv ity: -1mV(=3mV/Pa) Weight: Sin gle: 7.76oz (220g) Dual: 15.3oz (435g) Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.2_01.13

36 DMH9000 Broadcast Quality Dual-Muff Head set on air qual ity Per for mance Durability Value Compatibility Per for mance: The DMH9000, with its low vi sual pro file, was spe cif i cally de signed with broad cast and stu dio ap pli ca - tions in mind. Spe cial at ten tion has been given to acous ti cal and elec tri cal iso la tion of the mi cro phone from the earspeakers to min i mize the in ci dence of cross-talk. The sym met ri cal hypercardioid stu dio qual ity con denser mi cro - phone was ex pressly de vel oped for near-field use and com bines ex cel lent noise re ject ing abil i ties with a wide, smooth fre quency re sponse. The near-field char ac ter is tics of the mi cro phone cap sule pro vide good noise re jec tion with out hav - ing it so close to the mouth as to ob scure the wear ers face. The op ti mal dis tance is 4 in. A new wind screen helps to elim i - nate wind and breath noise. The mi cro phone is bal anced and re quires phan tom power 12~48V. The mi cro phone boom can be po si tioned on the left or right side and swings up and out of the way past a se ries of detents. As the boom is raised a gold plated mi cro switch turns the mi cro phone noise lessly off. The earspeakers have a spe cially con toured and wide band width in com bi na tion with high sen si tiv ity. Two types of ear cush ions are avail able. For sports an nounc ing, and sim i - larly noisy ap pli ca tions, dual cham ber foam-filled cush ions pro vide op ti mum noise ex clu sion. In stu dio or other mu si cal ap pli ca tions the al ter nate style of ear cush ions are de signed to op ti mize fre quency re sponse (See spec i fi ca tions ). Durability: The DMH9000 con tin ues the un ri valed du ra bil ity of our 200 Se ries head sets. The earspeaker hous ings and mi cro phone boom are con structed of an al most in de struc ti ble ma te rial that will not be dam aged if dropped or stepped upon. The ma te rial is fully re cy cla ble and can be cleansed with or di nary house hold de ter gents. Should re pair ever be nec es sary the head set can be eas ily dis as sem bled and re as sem bled. This is achieved with out mak ing the pro ce dure ob - vi ous to a tamperer. Value: Head sets of this qual ity are not in ex pen sive, but we in vite you to com pare value with any other head set in this cat - e gory. When you plug in the du ra bil ity fac tor and our im me di ate and no-quib ble ser vice, the dif fer ence be comes even greater. Compatibility: The DMH9000 can be fit ted with ca ble and plugs for al most any pro fes sional ap pli ca tion in clud ing broad - cast, au dio con sole, re cord ing con sole and com puter. Technical Specifications (sub ject to change with out no tice) Earspeakers: Fre quency re sponse: 16-10,000Hz or 10-34,200Hz Nom i nal Im ped ance: 400 (each side) Sound pres sure level: 94dB Ex ter nal noise ex clu sion: >25dBA Average pressure on ears: 7N Weight (with out ca ble): 12oz (350g) Mi cro phone: Trans ducer type: Con denser Fre quency re sponse at 10dB: 35-15,000Hz Po lar pat tern: Hypercardioid (near field) Front-to-back ra tios Hz: d at de grees d at 135 degrees 1kHz: 7mV/Pa Im ped 1kHz: 600, bal anced Printed in USA Pro In ter com LLC Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.2_01.13

37 HH10A & HH10B Intercom Handsets Per for mance Du ra bil ity Value Com pat i bil ity The HH10A con sists of the hand set with push-to-talk switch, equipped with a US-made coil cord and 4-pin XLR con nec tor, and a wall mount cra dle with re tain ing spring-clip, as shown in the photo above. The HH10B con sists of the same hand set, coil cord and cra dle, but the coil cord is wired to the cra dle which, in this model, con tains a hook-switch to mute the earspeaker when the hand set is hung up. A ten foot ca ble is wired to the HH10B cra dle, with a 4-pin XLR con nec tor for con nec tion to an in ter com sta tion. We rec om mend the HH10B for quiet en vi ron ments where the au dio from the earspeaker (while the hand set is in the cra dle) would be a nui sance. Performance: These heavy duty hand sets are equipped with dy namic trans duc ers suit able for in ter - com use. To pre vent feed back and per mit high lev els be fore feed back, the in te rior of the hand set is par tially filled with a dense mas tic ma te rial, block ing in ter nal acous tic cou pling be tween the mi cro - phone and the earspeaker. A high qual ity shielded coil cord is then fit ted with a gen u ine Neutrik con - nector. Du ra bil ity: These hand sets are molded from com mer cial tele phone qual ity com pounds No other hand set of fered for in ter com use pro vides greater re sis tance to phys i cal dam age. The cra dle in - cludes a spring-clip, which pre vents the hand set from be ing ac ci den tally, dis lodged. The push-to-talk switch in the hand set and the hook switch in the HH10B cra dle are rated for mil lions of cy cles. Value: Pro In ter com of fers these high qual ity hand sets at prices com pa ra ble to reg u lar im ported plastic handsets. Tech ni cal spec i fi ca tions: (Sub ject to change with out no tice) Earspeaker: Im ped ance: Freq. Re sponse: Hz Sen si tiv ity: nom i nal 1kHz Mi cro phone: (Dy namic) Im ped ance: Freq. Re sponse: kHz Sen si tiv ity: nom i nal 1kHz Weight: Ex clud ing con nec tor & cra dle - Approx 12.5 oz Phone: +1 (815) Or ders and Tech sup port: (888) Fax: +1 (815) sup port@prointercomllc.com Skype: intercom4pros Rev.1_12.12