Copyright Black Box Corporation. All rights reserved.

SEPTEMBER 2000 SM500A SM505C SM510C SM516A SM501C SM506C SM511C SM517A SM502C SM507C SM512C SM517AE SM503C SM508C SM514C SM518 SM504C SM509C SM515C SM520C Automatic Switching System SYSTEM GANG 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GANG A B ENABLE AUTOMATIC SWITCHING SYSTEM CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com E-mail: info@blackbox.com

FCC STATEMENT FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference. Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment. This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada. Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada. 1

AUTOMATIC SWITCHING SYSTEM NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5. El aparato eléctrico no deberá ser usado cerca del agua por ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc.. 6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante. 7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante. 8. Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser referido a personal de servicio calificado. 9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación. 2

NOM STATEMENT 10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor. 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato. 14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante. 15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia. 16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo. 17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación. 18. Servicio por personal calificado deberá ser provisto cuando: A: El cable de poder o el contacto ha sido dañado; u B: Objectos han caído o líquido ha sido derramado dentro del aparato; o C: El aparato ha sido expuesto a la lluvia; o D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o E: El aparato ha sido tirado o su cubierta ha sido dañada. 3

AUTOMATIC SWITCHING SYSTEM TRADEMARKS USED IN THIS MANUAL Wang is a registered trademark of Wang Laboratories, Inc. Molex is a registered trademark of Molex Incorporated. Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. 4

Chapter Contents CONTENTS Page 1. Specifications...6 2. Introduction...8 2.1 Description...9 2.2 Features...11 2.3 Typical Applications...13 2.4 System Components...15 2.4.1 System Makeup...15 2.4.2 The System Chassis and Cards...15 2.4.3 The Remote System Gang Controller...21 3. Installation...28 3.1 Installing the Rackmount and Inserting Cards..28 3.2 Installing the Remote Control Panel...33 4. Maintenance...36 5

AUTOMATIC SWITCHING SYSTEM 1. Specifications Protocol Transparent to all protocols Interface Digital: RS-232/V.24, V.35, X.21/X.25, T1/T2; Analog: V.F. (Terminal Strip), RJ-11, RJ-45; Coax: BNC, TNC, Twinaxial Relays Latching type: Contacts made of gold cadmium silver. Initial contact resistance 50 milliohms. Expected life is 10,000,000 operations. Local Operation Manual local operation is through toggle switches. Remote Operation A Remote Control Panel can be located 2,000 feet (610 meters) from the switch rack and connected to it with 50-pin telco cable. Additionally, an ASCII terminal can be connected to the Remote System Gang Controller via a modem and switch the rack from a remote location using the telephone system. Enclosure Metal Temperature 32 to 158 F (0 to 70 C) 6

Humidity 5 to 95% (noncondensing) CHAPTER 1: Specifications Power 115 VAC, 60 Hz on domestic units (PS510 power supply); 230 VAC, 50 Hz on international units (PS510E power supply) Size Rack: 7"H x 19"W x 6.5"D (17.8 x 48.3 x 16.5 cm); Remote Control Panel: 1.8"H x 19"W x 6.5"D (4.4 x 48.3 x 16.5 cm); Remote System Gang Controller: 2.3"H x 5"W x 5"D (5.8 x 12.7 x 12.7 cm) Weight Rack (full): 12 lb. (5.4 kg); Remote Controller: 7 lb. (3.2 kg); Remote System Gang Controller: 1 lb. (0.5 kg) 7

AUTOMATIC SWITCHING SYSTEM 2. Introduction This manual covers the following products: Automatic Rack Chassis AB-V.35 18 Conductor Card AB-RS-232 12 Conductor Card AB-RS-232 24 Conductor Card AB Coax BNC Card AB Twinaxial Card AB Wang BNC/TNC Card AB Double Coax Card AB RJ-11 Card AB RJ-45 Card AB 4-Wire Utility Card AB DB9 Card AB DB15 Card AB DB15HD Conductor Card Power Supply Card + System Gang Power Supply Card (for single rack) Remote Control Panel Remote System Gang Controller Remote System Gang Controller (Int l) Blank Panel for SM500A SM500A SM501C SM502C SM503C SM504C SM505C SM506C SM507C SM508C SM509C SM510C SM511C SM512C SM520C SM514C SM515C SM516A SM517A SM517AE SM518 8

CHAPTER 2: Introduction 2.1 Description The Automatic Switching System provides an efficient and reliable way to switch between an active and fallback system. The system was designed specifically for the user who requires both local and remote switching, but not necessarily the sophisticated switching and monitoring capabilities of a fully automated network management system. It can switch locally by a toggle switch or from a distance through a remote control panel. The system is expandable to a maximum of 64 racks with each rack accommodating up to 16 interface cards (installed in slots 0 to 15) plus a power supply and control card. The system can accommodate up to 1024 channels being switched simultaneously. A variety of interfaces can be used within the same rack. Each interface card is transparent to data. Magnetic latching relays are used for switching and remain in the last switched position in case the power fails. Interface cards are available for RS-232, coax BNC, twinaxial, WANG BNC/TNC, double coaxial, V.35, RJ- 11, RJ-45, 4-wire utility, DB9, and DB15. 9

AUTOMATIC SWITCHING SYSTEM The remote control option is made available through either the SM516A Remote Control Panel or the SM517A Remote System Gang Controller. The SM516A gives remote capability up to 2000 feet (610 meters) whereas the SM517A provides for capability over the telephone system using modems. The Remote Control Panel can be used with each rack in the system to provide maximum flexibility and control. The Remote Control Panel is connected to the Automatic Switching System rack using a telco cable with a 50-pin connector. The Remote Control Panel can be located up to 2000 feet (610 meters) away. This panel provides the user with the same functions that can be performed manually: individual and gang switching of each rack. These functions are either enabled or disabled by a key-operated switch on the panel. The Remote System Gang Controller comes in a separate standalone box and is connected to the Automatic Switching System rack using RJ cable. The Remote System Gang Controller can be sent commands from an ASCII terminal over an RS-232 link. This link can be set up using modems, which gives the user the option of being located virtually anywhere, even in a 10

CHAPTER 2: Introduction distant city, while having control over the system. Only Gang switching can be controlled through this unit. Individual channel selection can not be addressed. Individual switching can only be controlled locally on the rack or remotely through the Remote Control Panel. 2.2 Features The system is available in a variety of interfaces. This means you can have all of your equipment commanded through one rack panel instead of numerous components doing a little of each. The modular construction of the system permits mixing interfaces within the same rack. This provides greater flexibility for you as your system grows or changes. The system can be expanded for gang switching up to 1024 lines. This permits numerous circuits to be changed with a single switch. The system is transparent to all protocols and communication formats. The switch makes no changes in the data or format being transmitted. It passes it through unchanged. 11

AUTOMATIC SWITCHING SYSTEM The remote option provides accessibility and control from a remote ASCII terminal. This allows a remote manager to have control over the circuits using a simple RS-232 link. System security is provided through a key-operated switch. Tampering or inadvertent switching is kept to a minimum, thereby ensuring maximum safety. The hermetically sealed relays ensure reliability. Dirt, dust, and moisture cannot interfere with the switching operations. The latching relays remain in the last switched position if the power fails. This means you have at least partial system operation if the power is lost to the Automatic Switching System. 12

CHAPTER 2: Introduction 2.3 Typical Applications 1. Backing up T-1 muxes or links for restoring service. 2. Switching to spare equipment or substituting line equipment with a single command from a control terminal. 3. Providing immediate backup in the case of primary equipment failure with on-line switching. 4. Centralizing control over line routing. 5. Remote system gang switching at unattended locations. 13

AUTOMATIC SWITCHING SYSTEM IN Master Switch Rack SM500A OUT 16 15 14 1 0 Interface Cards Control Card SM514-C Power Supply Telco Line RJ-11 Cable Modem Modem Remote Terminal Slave Rack #1 IN OUT RJ-11 Cable 16 15 14 13 1 0 SM515-C Power Supply Slave Rack #2 RJ-11 Cable IN OUT To next rack (up to 64 total racks) 16 15 14 2 1 0 SM515-C Power Supply 50-Pin Telco Cable (up to 2000 ft.) 151413121110 9 8 7 6 5 4 3 2 1 0 Remote Control Panel SM561A Figure 2-1. Complete Automatic Switching System Configuration (Including the Remote Control Option). 14

CHAPTER 2: Introduction 2.4 System Components 2.4.1 SYSTEM MAKEUP A standard Automatic Switching System consists of a rackmount, the required power supply and control card, and selected channel interface cards. The remote option uses the Remote System Gang Controller or Remote Control Panel. 2.4.2 THE SYSTEM CHASSIS AND CARDS A. Rack Mount Model SM500A, Automatic Rack Chassis The Automatic Rack Chassis has 16 slots for channel interface cards and one slot for a power supply and control card. Located on the front panel is the keyoperated switch which enables all switching functions. B. Channel Interface Cards CAUTION To prevent accidentally damaging a circuit, we HIGHLY recommend that you remove ALL power from the rack while inserting or changing any of the cards. Disconnecting power will not affect the position of the switches since they will remain in the last switched position. 15

AUTOMATIC SWITCHING SYSTEM Model SM501C, AB V.35 Card Switches 18 conductors: C, H, S, W, AA, A, E, P, U, Y, D, J, T, X, B, F, R, V. A, B, and Common have female connectors. Model SM502C, AB RS-232 12 Conductor Card Switches pins 2-8, 15, 17, 20, 21, 22. Pin 1 is protective ground and is tied common. A, B, and Common have female connectors. Model SM503C, AB RS-232 24 Conductor Card Switches 24 conductors (pins 2-25 and Pin 1 is protective ground and tied common). A, B, and Common have female connectors. Other available cards include the following interfaces. These cards switch all applicable leads: Model SM504C, AB Coax BNC Card Model SM505C, AB WANG BNC/TNC Card Model SM507C, AB Double Coax Card 16

CHAPTER 2: Introduction Model SM508C, AB RJ-11 Card (For switching up to 4 wires.) This card switches pins 2, 3, 4, and 5. If six wires need to be switched use the SM609C card. Model SM509C, AB RJ-45 Card (8 wires are switched.) Model SM510C, AB Utility Card (4-wire) Model SM511C, AB DB9 Card (9 wires are switched.) Model SM512C, AB DB15 Card (15 wires are switched.) Model SM520C, AB DB15HD Card (15 wires are switched.) 17

AUTOMATIC SWITCHING SYSTEM NOTE There are two control cards, the SM514C and the SM515C. Both have a power module and provide the power requirements to operate an entire rack. In addition, the control card determines the means and type of gang switching, either rack level or system level. Model SM514C, Power Supply Card + System Level Gang Card This card performs gang switching on a rack level and system level. Manual system gang switching is done with a toggle switch. More than one of these cards can be used in a system that provides the ability to system gang switch from one or more racks. When using this card, all of the control cards in the system must be interconnected with RJ-11 cables. This card is located in slot 16 of the master switch rack. All other slave racks will get master switching information from this power supply card. 18

CHAPTER 2: Introduction Figure 2-2. Power Supply Card. 19

AUTOMATIC SWITCHING SYSTEM Model SM515C, Power Supply Card (For powering a single rack.) This card performs gang switching only on a rack level using a toggle switch. It has a telco connector (50-pin female) to provide control and remote switching from the Remote Control Panel (SM516A). Two RJ-11 connectors provide rack interconnection when system gang switching is required. The SM517A can also be used with this power supply card via RJ-11 cable. This card is inserted in slot #16 on the rack. Model SM516A, Remote Control Panel This panel is used to perform remote individual and gang switching on rack level only. The panel is connected to the Power Supply Card with a telco cable with a 50-pin connector. 20

CHAPTER 2: Introduction 2.4.3 THE REMOTE SYSTEM GANG CONTROLLER Model SM517A (and SM517AE), Remote System Gang Controller This unit acts as an interface between the Automatic Switching Rack and an RS-232 link. Operated through an ASCII terminal, this unit performs gang switching on a single rack or an entire system. All cards in a rack will be switched simultaneously. No individual switching is available with this option and no individual channel switching will occur. The controller is used with the SM514C and SM515C power supply cards using RJ-11 cross-pinned cable. The unit can operate at 300, 600, 1200, 2400, 4800, and 9600 bps. The speed is jumperselectable with straps. The unit uses eight data bits, no parity bit, and one stop bit. If individual rack control is needed, use a Remote System Gang Controller for each rack. By setting the internal DIP switch in the unit, the user determines a security character. Commands to the unit are then performed by first transmitting the security character and then the command to either switch or the command to give the status. Refer to the table for DIP switch settings for the security character. 21

AUTOMATIC SWITCHING SYSTEM Commands recognized by the unit are: To switch to A: A To switch to B: B Give Status: S When status is requested, the message Switched to A or Switched to B will appear on the terminal s screen. Entering any other command will send a menu to the terminal. NOTE Key operation: With the key turned off on the local unit (the key in the horizontal position), you can only switch from the remote end. If the key is turned off at the remote end, remote switching cannot be performed. The remote keyoperated switch must be in the Enable position before contacts can be switched. NOTE When all settings are ON, there is no security character preceding the command. 22

CHAPTER 2: Introduction Table 2-1. DIP Switch Settings for the Security Character. Security 1 2 3 4 5 Character 0 ON ON ON ON OFF 1 ON ON ON OFF ON 3 ON ON OFF ON ON 4 ON ON OFF ON OFF 5 ON ON OFF OFF ON 6 ON ON OFF OFF OFF 7 ON OFF ON ON ON 8 ON OFF ON ON OFF 9 ON OFF ON OFF ON : ON OFF ON OFF OFF ; ON OFF OFF ON ON < ON OFF OFF ON OFF = ON OFF OFF OFF ON > ON OFF OFF OFF OFF? OFF ON ON ON ON 23

AUTOMATIC SWITCHING SYSTEM Table 2-1 (continued). DIP Switch Settings for the Security Character. Security 1 2 3 4 5 Character @ OFF ON ON ON OFF A OFF ON ON OFF ON B OFF ON ON OFF OFF C OFF ON OFF ON ON D OFF ON OFF ON OFF E OFF ON OFF OFF ON F OFF ON OFF OFF OFF G OFF OFF ON ON ON H OFF OFF ON ON OFF I OFF OFF ON OFF ON J OFF OFF ON OFF OFF K OFF OFF OFF ON ON L OFF OFF OFF ON OFF M OFF OFF OFF OFF ON N OFF OFF OFF OFF OFF 24

CHAPTER 2: Introduction The rear panel of the SM517A has the following connectors: Power: 2-pin, male, Molex type connector. This is used to connect the power module supplied with the unit. RS-232/Modem: DB25S female connector. This is used to connect a terminal, computer, or modem to the unit. Six RS-232 pins are used on this connector. They are shown in Table 2-2. Table 2-2. RS-232 Pins. Signal Pin Direction Transmit Data 2 Out Receive Data 3 In Request To Send 4 Out Clear To Send 5 In Signal Ground 7 Data Carrier Detect 8 In 25

AUTOMATIC SWITCHING SYSTEM System Control: RJ-11 connector. This connector is used to connect the unit to the Automatic Rack Chassis. An RJ-11 cable is run from the RJ-11 connector to the Gang In connector on the Power Supply Card. The Power Supply Card can be either the SM514C or the SM515C. If there is more than one rack in the system, the racks must be daisychained (Gang-In to Gang-Out via RJ-11 cables). TO PREVIOUS RACK REMOTE PANEL SWITCHING CARDS P.S. & CONTROL CARD TO NEXT RACK 0 1 14 15 16 CONTROL BUS Figure 2-3. Rack Assembly Block Diagram. 26

CHAPTER 2: Introduction A A A/B SWITCH B CONTROL CIRCUIT LATCHING RELAYS COM CONTROL & REMOTE FEEDBACK B Figure 2-4. Channel Interface Card Block Diagram. 27

AUTOMATIC SWITCHING SYSTEM 3. Installation 3.1 Installing the Rackmount and Inserting Cards CAUTION To prevent accidentally damaging a circuit, we HIGHLY recommend that you remove ALL power from the rack while inserting or changing any of the cards. Disconnecting power will not affect the position of the switches since they will remain in the last switched position. 1. Install the cards in the Rackmount using slots 0 to 15. Fasten each card into place with the supplied screws. 2. Mount the Automatic Switching System rackmount(s) within the communication cabinet. 3. Plug the power supply module into the power connector located on the control panel. Plug it into the power outlet. For a one-rack system requiring only rack-level gang switching using the SM515C Power Supply and Control Card, follow this procedure: 1. Turn the key-operated switch to the horizontal position and remove the key. 28

CHAPTER 3: Installation 2. Toggle the channel switches. Then toggle the Gang Switch. No switching should occur. 3. Reinsert the key and turn the switch to the Enable position. 4. Toggle the channel switches. Each channel should switch to the required position and the LED will provide a visual indication of the switched position. 5. Toggle the Gang Switch. All channels within the rack should switch to the A or B position. 6. Connect all interface cables to the system. If you need more than one rack in a system requiring manual gang switching, use the SM514C Power Supply Card in the Master Switch Unit. All subsequent racks can use the SM515C Power Supply Card. If using the SM514C card, follow this procedure: 1. All the Control Cards must be interconnected to RJ- 11 cables (RJ-11 cables are supplied with the Control Card). Connection is from the Gang-Out connector on the first rack to the Gang-In connector on the succeeding rack. This procedure is continued until 29

AUTOMATIC SWITCHING SYSTEM all the racks in the system are interconnected. Up to 64 racks may be connected in this manner. 2. Turn the key-operated switch on all racks in the system to the horizontal position and remove the keys. 3. Toggle the channel switches. Then toggle the Gang Switch. No switching should occur. 4. On the SM514C Power Supply Card (it has one toggle switch and one pushbutton switch), push the System Gang Switch and toggle the Gang Switch simultaneously to A or B. No switching should occur. 5. Reinsert the key into the rack containing the SM514C Power Supply Card and turn it to the Enable position. 6. Toggle the channel switches in that particular rack. Each channel should switch to the required position and the LED should provide a visual indication of the switched position. 30

CHAPTER 3: Installation 7. Toggle the Gang Switch to the A or B position. All channels within the rack should be switched to the required position. 8. Push the System Gang Switch and toggle the Gang Switch simultaneously to the A or B position. All racks within the system should switch to the A or B position. 9. Reinsert keys into all racks and turn each one to the Enable position. For each rack, perform the following steps: A. Toggle the channel switches. Each channel should switch to the required position and the LED should provide a visual indication of the switched position. B. Toggle the Gang Switch. All channels within the rack should switch to the A or B position. 10. Connect all interface cables to the cards in the rack. 31

AUTOMATIC SWITCHING SYSTEM CONTROL CARD INTERFACE CARDS IN OUT RACK 0 16151413 2 1 0 IN OUT RACK 1 16151413 2 1 0 IN OUT RACK 2 16151413 2 1 0 TO NEXT RACK Figure 3-1. System Gang Control Hookup. 32

CHAPTER 3: Installation 3.2 Installing the Remote Control Panel The Remote Control Panel, SM516A, is used to perform switching functions for the Automatic Switching System from a remote location. To install the Remote Control Panel, follow this procedure: 1. Install the Remote Control Panel at the remote location. 2. Connect the Remote Control Panel to the Automatic Switching System rack using a straight-pinned telco cable. 3. After the cable has been connected, the LEDs on the remote panel will indicate the status (A or B position) of each interface card on the Automatic Switching System rack. 4. Turn the key-operated switch to the horizontal position and remove the key. Press the Gang and the A pushbutton simultaneously. Then press the Gang and the B pushbutton simultaneously. No switching should be performed. 33

AUTOMATIC SWITCHING SYSTEM 5. Reinsert the key and turn it to the Enable position. Press the Gang and the A pushbutton simultaneously. All LEDs on the remote panel will switch to the A position. Press the Gang and the B position simultaneously. All LEDs on the remote panel will switch to the B position. NOTE All switching performed through the remote panel is reflected by the status of the LED indicators (A or B position). The LEDs offer a direct view of any and all switching activity occurring within the Automatic Switching System rack. 6. Press the channel button and either the A or B pushbutton to perform individual channel switching. The LED will reflect the switched position. 34

CHAPTER 3: Installation REMOTE CONTROL 151413121110 9 8 7 6 5 4 3 2 1 0 REMOTE CONTROL PANEL 16151413 2 1 0 Figure 3-2. Installation of the Remote Control Panel. 35

AUTOMATIC SWITCHING SYSTEM 4. Maintenance No preventative or routine maintenance is required for the Automatic Switching System. To replace a Channel Interface Card, unscrew the mounting screws from the rear. Slide the card out of the rack and install a replacement. CAUTION To prevent accidentally damaging a circuit, we HIGHLY recommend that you remove ALL power from the rack while inserting or changing any of the cards. Disconnecting power will not affect the position of the switches since they will remain in the last switched position. CAUTION Electrostatic Discharge (ESD): Cards are ESD-sensitive. To prevent ESD damage, always wear grounding wrist straps when touching, removing, or inserting cards. Store and transport cards in sealed, static-shielding bags. 36