1993 SPECIFICATIONS CSJ , ETC. & SPECIAL SPECIFICATION ITEM 6132 ARTERIAL TRAFFIC MANAGEMENT SYSTEM

Transcription

1 1993 SPECIFICATIONS CSJ , ETC. & DESCRIPTION SPECIAL SPECIFICATION ITEM 6132 ARTERIAL TRAFFIC MANAGEMENT SYSTEM THIS ITEM DESCRIBES THE OPERATION AND INSTALLATION OF AN ARTERIAL TRAFFIC MANAGEMENT SYSTEM (ATMS). 2.0 ATMS OPERATION ATMS IS A NONPROPRIETARY, DISTRIBUTED PROCESSING TRAFFIC SIGNAL SYSTEM. THE LOCAL CONTROL UNIT (LCU) IS HOUSED IN A CABINET WITH THE NEMA TRAFFIC SIGNAL CONTROLLER. THROUGH THE COMMON BACKPANEL CONNECTION, THE LCU SETS THE CYCLE LENGTH, SPLITS, PHASE SEQUENCE, AND OFFSET FOR THE INTERSECTION. THE SYSTEM CONTROL UNIT (SCU) POLLS THE LCUS FOR STATUS AND DETECTOR DATA, SELECTS THE APPROPRIATE TIMING PLAN, AND DIRECTS THE LCUS TO IMPLEMENT THE TIMING PLAN. THE MANAGER CONTROL UNIT (MCU) PROVIDES THE USER INTERFACE FOR THE ATMS. ALL SOFTWARE FOR THE LCU, SCU, AND MCU HAS BEEN DEVELOPED BY THE DEPARTMENT. 3.0 ATMS INSTALLATION AFTER ALL EQUIPMENT HAS BEEN INSTALLED IN THE FIELD AND HAS PASSED ALL CONTRACTOR CONDUCTED TESTS, THE DEPARTMENT WILL INSTALL THE DATA COMMUNICATIONS TEST SOFTWARE IN THE SCUS AND LCUS AND WILL CONDUCT THE DATA COMMUNICATIONS TESTS AS SPECIFIED ON THE PLANS. AFTER COMPLETION OF THE DATA COMMUNICATIONS TESTS, THE DEPARTMENT WILL INSTALL THE ATMS SOFTWARE IN THE MCUS, SCUS AND LCUS. 4.0 MISCELLANEOUS ITEMS THE FOLLOWING ITEMS SHALL BE FURNISHED: 4.1 LOCAL CONTROL UNIT POWER CABLES DESCRIPTION THE LCU POWER CABLE MATES WITH AN AMP RECEPTACLE LOADED WITH FIVE (5) OUT OF NINE (9) POSSIBLE AMP PIN CONTACTS. THE LCU POWER CABLE SHALL CONSIST OF AN AMP PLUG, WITH MATCHING CABLE CLAMP, AND PARTIALLY LOADED WITH FIVE (5) AMP SOCKET CONTACTS ATTACHED TO 18 AWG STRANDED WIRE. EACH INDIVIDUAL WIRE SHALL HAVE COLOR CODED INSULATION AS INDICATED BELOW

2 PIN INSULATION NUMBER COLOR SIGNAL 1 BLACK 120 V AC 2 WHITE 120 V AC COMMON 3 GREEN 120 V AC EARTH GROUND 7 RED 24 V DC 8 BLUE 24 V DC GROUND INSTALLATION ONE LCU POWER CABLE SHALL BE FURNISHED AND INSTALLED IN EACH SIGNAL CONTROLLER CABINET AS SHOWN ON THE PLANS. THE WIRES SHALL BE TERMINATED TO BUS BARS OR TO TERMINALS ON THE FRONT OF THE BACKPANEL AS APPROPRIATE. THE CONNECTIONS SHALL BE WITH FORKED SPADE LUGS OR OTHERWISE AS NEEDED. EACH INDIVIDUAL WIRE SHALL BE CUT TO THE LENGTH REQUIRED TO REACH THE POINT AT WHICH IT IS TO BE CONNECTED. THERE SHALL BE A MINIMUM OF SIX (6) FEET OF CABLE FROM THE MOUNTING POINT ON THE BACKPANEL TO THE CONNECTOR. AFTER ALL WIRES HAVE BEEN CONNECTED, THE LCU POWER CABLE SHALL BE NEATLY BUNDLED. SEE THE ATMS LCU CABINET INTERCONNECTIONS PLAN SHEET FOR WIRING DETAILS ADDITIONAL TESTS ADDITIONAL LCU POWER CABLES SHALL BE PROVIDED IF CALLED FOR IN THE PLANS DOCUMENTATION FIVE WIRING DIAGRAMS AND PARTS LISTS FOR THE LCU POWER CABLES SHALL BE PROVIDED. 4.2 LOCAL CONTROL UNIT SIGNAL CABLES DESCRIPTION THE LCU SIGNAL CABLE MATES WITH AN AMP RECEPTACLE LOADED WITH AMP SOCKET CONTACTS. THE LCU SIGNAL CABLE SHALL CONSIST OF AN AMP PLUG, WITH MATCHING CABLE CLAMP, FULLY LOADED WITH FIFTY-SEVEN (57) AMP PIN CONTACTS ATTACHED TO 22 AWG STRANDED WIRE INSTALLATION FOUR LCU SIGNAL CABLES SHALL BE FURNISHED AND INSTALLED IN EACH SIGNAL CONTROLLER CABINET AS SHOWN ON THE PLANS. THE CABLES SHALL BE TERMINATED ON THE FRONT OF THE SIGNAL CONTROLLER CABINET BACKPANEL USING FORKED SPADE LUG TERMINALS. EACH INDIVIDUAL WIRE THAT IS TERMINATED ON THE BACKPANEL SHALL BE CUT TO THE LENGTH REQUIRED TO REACH THE SPECIFIC TERMINAL TO WHICH IT IS TO BE CONNECTED. THERE SHALL BE A MINIMUM OF SIX (6) FEET OF CABLE FROM THE MOUNTING POINT ON THE BACKPANEL TO THE CONNECTOR. THE CONNECTED WIRES SHALL BE NEATLY BUNDLED. WIRES WHICH ARE NOT TERMINATED SHALL BE LABELED WITH PIN NUMBERS, BE A MINIMUM OF TEN (10) FEET IN LENGTH AND NEATLY BUNDLED. EACH CABLE BUNDLE SHALL BE LABELED WITH THE NAME OF THE SIGNAL CABLE TO WHICH IT BELONGS. SEE THE ATMS LCU CABINET INTERCONNECTIONS PLAN SHEET FOR WIRING

3 DETAILS. NOTE THAT THE PIN CORRESPONDING TO THE KEYING PLUG MUST BE REMOVED ON EACH CABLE. CABLES SHOULD BE NUMBERED ONE THROUGH FOUR AT THE CONNECTOR END ADDITIONAL CABLES ADDITIONAL LCU SIGNAL CABLES SHALL BE PROVIDED IF CALLED FOR IN THE PLANS DOCUMENTATION FIVE WIRING DIAGRAMS AND PARTS LISTS FOR THE LCU SIGNAL CABLES SHALL BE PROVIDED. 4.3 SCU COMMUNICATIONS INTERFACE PANEL DESCRIPTION THE SCU COMMUNICATIONS INTERFACE PANEL SHALL CONSIST OF AN ENCLOSURE CONTAINING INDIVIDUALLY REPLACEABLE LIGHTNING PROTECTION MODULES FOR EACH PAIR OF WIRES IN A 50 PAIR CABLE. THE ENCLOSURE SHALL PROVIDE A 66M TYPE TERMINATION PANEL FOR FIELD TERMINATION, TWO (2) RJ21 CONNECTORS FOR CONNECTION TO THE SCU, AND A REMOVABLE OR HINGED COVER. INSERTION OF A PROTECTION MODULE SHALL AUTOMATICALLY PROVIDE A GROUND CONNECTION AND ESTABLISH CONTINUITY BETWEEN THE FIELD WIRING AND THE CORRESPONDING RJ21 PINS. EACH PROTECTION CIRCUIT SHALL MEET THE FOLLOWING REQUIREMENTS: 1. A GAS DISCHARGE TUBE SHALL BE PROVIDED FOR PRIMARY SURGE PROTECTION. 2. SECONDARY PROTECTION SHALL BE PROVIDED BY EITHER HEAT COILS OR SILICON TRANSIENT PROTECTION DEVICES. 3. EACH CIRCUIT SHALL OPERATE WITH ANALOG LINE VOLTAGES BETWEEN -12 AND + 12 VOLTS, AND LESS THAN 0.5 DB INSERTION LOSS AT DATA TRANSMISSION RATES UP TO 19,200 BITS PER SECOND. 4. EACH CIRCUIT SHALL PROTECT AGAINST SURGE TRANSIENTS NOT EXCEEDING 10 KV AND 2.5 KA. 5. CLAMPING OR ARCING VOLTAGE LEVELS SHALL BE AT 24 VOLTS INSTALLATION A SCU COMMUNICATIONS INTERFACE PANEL SHALL BE FURNISHED AND INSTALLED AT EACH SCU CONSOLE. THE COMMUNICATIONS CABLE SHALL BE TERMINATED ON THIS PANEL AS SHOWN ON THE PLANS. TWO (2) 30 FOOT CABLES SHALL BE PROVIDED WITH RJ21 CONNECTORS MATING TO THE SCU CONSOLE REAR COMMUNICATIONS CONNECTOR PANEL AND TO THE SCU COMMUNICATIONS INTERFACE PANEL DOCUMENTATION A WIRING DIAGRAM AND PARTS LIST SHALL BE PROVIDED FOR EACH SCU COMMUNICATIONS INTERFACE PANEL

4 4.4 LOCAL LIGHTNING PROTECTION MODULE DESCRIPTION THE LOCAL LIGHTNING PROTECTION MODULE SHALL CONSIST OF A SEALED UNIT CONTAINING EIGHT PROTECTION CIRCUITS, EACH TERMINATED BY A PAIR OF NO. 6 SCREW TERMINALS ON OPPOSITE ENDS OF THE MODULE. AN ADDITIONAL NO. 6 SCREW TERMINAL SHALL BE PROVIDED ON EACH END FOR CONNECTION TO AN EARTH GROUND TERMINAL. EACH PROTECTION CIRCUIT SHALL MEET THE FOLLOWING REQUIREMENTS: 1. A GAS DISCHARGE TUBE SHALL BE PROVIDED FOR PRIMARY SURGE PROTECTION. 2. A SILICON TRANSIENT PROTECTOR SHALL BE USED TO ESTABLISH A LOW LEVEL CLAMPING VOLTAGE. 3. EACH CIRCUIT SHALL OPERATE WITH ANALOG LINE VOLTAGES BETWEEN -12 AND + 12 VOLTS, AND LESS THAN 0.5 DB INSERTION LOSS AT DATA TRANSMISSION RATES UP TO 19,200 BITS PER SECOND. 4. EACH CIRCUIT SHALL PROTECT AGAINST SURGE TRANSIENTS NOT EXCEEDING 10 KV AND 2.5 KA. 5. EACH CIRCUIT SHALL BE CLAMPED AT 24 VOLTS, LINE-TO-GROUND. 6. THE ANALOG LINE VOLTAGE SHALL NOT EXCEED THE CLAMPING VOLTAGE FOR MORE THAN 10 NANOSECONDS DOCUMENTATION FIVE COPIES OF THE WIRING DIAGRAM AND PARTS LIST FOR THE LOCAL LIGHTNING PROTECTION MODULE SHALL BE PROVIDED CABLE LOCAL COMMUNICATIONS INTERFACE PANEL DESCRIPTION THE 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL PROVIDES INTERCONNECTION POINTS FOR TWO 50 PAIR OR TWO 25 PAIR COMMUNICATIONS CABLES, AND LIGHTNING PROTECTION FOR THE FIELD EQUIPMENT. THE 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE PANEL SHALL BE CONSTRUCTED OF 1/8" ALUMINUM, AND SHALL NOT EXCEED 12" IN ANY DIMENSION. 2. THE PANEL SHALL CONTAIN A 66M BLOCK WITH 50 PAIRS OF DOUBLE CLIPS, TYPE SIEMON 842 OR EQUIVALENT, UNWIRED. 3. THE PANEL SHALL CONTAIN A LOCAL LIGHTNING PROTECTION MODULE (LPM). 4. THE PANEL SHALL CONTAIN A STANDARD TWO CONDUCTOR, QUARTER INCH, PHONE JACK THAT SHALL MATE WITH THE VOICE POWERED HEADSET PLUG. THE JACK SHALL BE ELECTRICALLY INSULATED FROM THE PANEL. 5. THE PANEL SHALL CONTAIN A THREE INCH HORIZONAL SLOT IN EACH CORNER TO ACCOMMODATE 0.25 INCH MOUNTING BOLTS

5 6. THE PANEL SHALL PROVIDE SPACE ON EACH SIDE OF THE 66M BLOCK FOR A 50 PAIR CABLE. A CLAMP OR STRAP SHALL BE PROVIDED TO SECURELY HOLD EACH CABLE IN PLACE ON THE PANEL INSTALLATION ONE 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL SHALL BE FURNISHED AND INSTALLED IN EACH SIGNAL CONTROLLER CABINET AS SHOWN IN THE PLANS. THE FOLLOWING STEPS SHALL BE FOLLOWED IN INSTALLING THE 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL. 1. A TWO (2) PAIR 66M CLIP TO RJ11 ADAPTER SHALL BE INSTALLED ON THE 66M BLOCK IN THE CORRESPONDING POSITION FOR THE CABINET PAIR ASSIGNMENT AS SHOWN IN THE PLANS. A MODULAR FOUR WIRE CABLE SHALL CONNECT THIS ADAPTER TO THE LPM. THE LENGTH OF THE CABLE SHALL PERMIT THE ADAPTER TO BE MOVED TO ANY POSITION ON THE 66M BLOCK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. 2 PAIR 66M INPUT TO LPM CLIP TO RJ11 RJ11 PIN INSULATION TERMINAL ADAPTER SLOT NUMBER COLOR NUMBER 1 2 BLACK RED GREEN YELLOW 4 2. A ONE (1) PAIR 66M CLIP TO RJ11 ADAPTER SHALL BE INSTALLED ON THE 66M BLOCK IN THE CORRESPONDING POSITION FOR THE VOICE PAIR ASSIGNMENT AS SHOWN ON THE PLANS. A MODULAR CABLE SHALL CONNECT THIS ADAPTER TO THE LPM. THE LENGTH OF THE CABLE SHALL PERMIT THE ADAPTER TO BE MOVED TO ANY POSITION ON THE 66M BLOCK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. 1 PAIR 66M INPUT TO LPM CLIP TO RJ11 RJ11 PIN INSULATION TERMINAL ADAPTER SLOT NUMBER COLOR NUMBER 1 3 RED GREEN 6 3. A FOUR (4) WIRE CABLE, SEVEN (7) FEET IN LENGTH, SHALL BE INSTALLED ON THE LPM TO CONNECT THE TWO PAIR 66M CLIP TO RJ11 ADAPTER TO THE LOCAL LIMITED DISTANCE MODEM. THE FREE END SHALL HAVE TERMINATIONS APPROPRIATE FOR THE MODEM'S ANALOG INTERFACE CONNECTORS. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. INSULATION OUTPUT FROM LPM MODEM COLOR TERMINAL NUMBER CONNECTION BLACK 1 LCU RECEIVED DATA RED 2 LCU RECEIVED DATA GREEN 3 LCU TRANSMIT DATA YELLOW 4 LCU TRANSMIT DATA

6 4. A MODULAR CABLE SHALL BE INSTALLED ON THE LPM TO CONNECT THE ONE PAIR 66M CLIP TO RJ11 ADAPTER TO THE VOICE JACK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. INSULATION OUTPUT FROM LPM COLOR TERMINAL NUMBER CONNECTION RED 5 VOICE JACK GREEN 6 VOICE JACK 5. THE PANEL SHALL BE ELECTRICALLY CONNECTED TO THE LPM GROUND TERMINAL. A NO. 10 AWG BARE SOLID COPPER WIRE OF APPROPRIATE LENGTH SHALL BE SECURED TO EITHER THE LPM GROUND TERMINAL OR TO THE PANEL ITSELF, AND TO THE AC GROUND BUS BAR IN THE CABINET. 6. PAIRS 1 THROUGH 25 OF THE COMMUNICATIONS CABLE INCOMING FROM THE DIRECTION OF THE SYSTEM CONTROL UNIT LOCATION SHALL BE SECURED ON THIS PANEL ON THE LEFT SIDE OF THE 66M BLOCK AND TERMINATED ON THE FIRST COLUMN OF PINS, COUNTING FROM LEFT TO RIGHT. PAIRS 26 THROUGH 50, IF THEY EXIST, OF THE INCOMIMG COMMUNICATIONS CABLE SHALL BE SECURED ON THE LEFT SIDE OF THE 66M BLOCK AND TERMINATED ON THE THIRD COLUMN OF PINS. PAIRS 1 THROUGH 25 OF THE OUTGOING COMMUNICATIONS CABLE, IF ONE EXISTS, SHALL BE SECURED ON THIS PANEL ON THE RIGHT SIDE OF THE 66M BLOCK AND TERIMINATED ON THE SECOND COLUMN OF PINS. PAIRS 26 THROUGH 50, IF THEY EXIST, OF THE OUTGOING COMMUNICATIONS CABLE SHALL BE SECURED ON THIS PANEL ON THE RIGHT SIDE OF THE 66M BLOCK AND TERMINATED ON THE FOURTH COLUMN OF PINS. 7. EACH COMMUNICATIONS CABLE SHALL BE PERMANENTLY LABELLED NEAR THE TERMINATION POINT ON THIS PANEL WITH THE NAME OF THE INTERSECTION AT WHICH THE OTHER END OF THE COMMUNICATIONS CABLE IS TERMINATED ADDITIONAL PANELS ADDITIONAL 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANELS SHALL BE PROVIDED IF CALLED FOR IN THE PLANS DOCUMENTATION FIVE WIRING DIAGRAMS AND PARTS LISTS FOR THE 2 CABLE LOCAL COMMUNICATIONS INTERFACE PANELS SHALL BE PROVIDED CABLE LOCAL COMMUNICATIONS INTERFACE PANEL DESCRIPTION THE 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL PROVIDES INTERCONNECTION POINTS FOR THREE 25 PAIR COMMUNICATIONS CABLES, AND LIGHTNING PROTECTION FOR THE FIELD EQUIPMENT. THE 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE PANEL SHALL BE CONSTRUCTED OF 1/8" ALUMINUM, AND SHALL NOT EXCEED 12" IN ANY DIMENSION. 2. THE PANEL SHALL CONTAIN A 66M BLOCK WITH 25 PAIRS OF QUADRUPLE CLIPS, TYPE SIEMON 569 OR EQUIVALENT, UNWIRED

7 3. THE PANEL SHALL CONTAIN A LOCAL LIGHTNING PROTECTION MODULE (LPM). 4. THE PANEL SHALL CONTAIN A STANDARD TWO CONDUCTOR, QUARTER INCH, PHONE JACK THAT SHALL MATE WITH THE VOICE POWERED HEADSET PLUG. THE JACK SHALL BE ELECTRICALLY INSULATED FROM THE PANEL. 5. THE PANEL SHALL CONTAIN A THREE INCH HORIZONAL SLOT IN EACH CORNER TO ACCOMMODATE 0.25 INCH MOUNTING BOLTS. 6. THE PANEL SHALL PROVIDE SPACE ON EACH SIDE OF THE 66M BLOCK FOR A 50 PAIR CABLE. A CLAMP OR STRAP SHALL BE PROVIDED TO SECURELY HOLD EACH CABLE IN PLACE ON THE PANEL INSTALLATION ONE 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL SHALL BE FURNISHED AND INSTALLED IN EACH SIGNAL CONTROLLER CABINET AS SHOWN IN THE PLANS. THE FOLLOWING STEPS SHALL BE FOLLOWED IN INSTALLING THE 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANEL. 1. A TWO (2) PAIR 66M CLIP TO RJ11 ADAPTER SHALL BE INSTALLED ON THE 66M BLOCK IN THE CORRESPONDING POSITION FOR THE CABINET PAIR ASSIGNMENT AS SHOWN IN THE PLANS. A MODULAR FOUR WIRE CABLE SHALL CONNECT THIS ADAPTER TO THE LPM. THE LENGTH OF THE CABLE SHALL PERMIT THE ADAPTER TO BE MOVED TO ANY POSITION ON THE 66M BLOCK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. 2 PAIR 66M INPUT TO LPM CLIP TO RJ11 RJ11 PIN INSULATION TERMINAL ADAPTER SLOT NUMBER COLOR NUMBER 1 2 BLACK RED GREEN YELLOW 4 2. A ONE (1) PAIR 66M CLIP TO RJ11 ADAPTER SHALL BE INSTALLED ON THE 66M BLOCK IN THE CORRESPONDING POSITION FOR THE VOICE PAIR ASSIGNMENT AS SHOWN ON THE PLANS. A MODULAR CABLE SHALL CONNECT THIS ADAPTER TO THE LPM. THE LENGTH OF THE CABLE SHALL PERMIT THE ADAPTER TO BE MOVED TO ANY POSITION ON THE 66M BLOCK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. 1 PAIR 66M INPUT TO LPM CLIP TO RJ11 RJ11 PIN INSULATION TERMINAL ADAPTER SLOT NUMBER COLOR NUMBER 1 3 RED GREEN 6 3. A FOUR (4) WIRE CABLE, SEVEN (7) FEET IN LENGTH, SHALL BE INSTALLED ON THE LPM TO CONNECT THE TWO PAIR 66M CLIP TO RJ11 ADAPTER TO THE LOCAL LIMITED DISTANCE MODEM. THE FREE END SHALL HAVE TERMINATIONS APPROPRIATE FOR THE MODEM'S ANALOG INTERFACE CONNECTORS. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW

8 INSULATION OUTPUT FROM LPM MODEM COLOR TERMINAL NUMBER CONNECTION BLACK 1 LCU RECEIVED DATA RED 2 LCU RECEIVED DATA GREEN 3 LCU TRANSMIT DATA YELLOW 4 LCU TRANSMIT DATA 4. A MODULAR CABLE SHALL BE INSTALLED ON THE LPM TO CONNECT THE ONE PAIR 66M CLIP TO RJ11 ADAPTER TO THE VOICE JACK. EACH INDIVIDUAL WIRE OF THE CABLE SHALL HAVE COLOR CODED INSULATION AND SHALL BE CONNECTED AS INDICATED BELOW. INSULATION OUTPUT FROM LPM COLOR TERMINAL NUMBER CONNECTION RED 5 VOICE JACK GREEN 6 VOICE JACK 5. THE PANEL SHALL BE ELECTRICALLY CONNECTED TO THE LPM GROUND TERMINAL. A NO. 10 AWG BARE SOLID COPPER WIRE OF APPROPRIATE LENGTH SHALL BE SECURED TO EITHER THE LPM GROUND TERMINAL OR TO THE PANEL ITSELF, AND TO THE AC GROUND BUS BAR IN THE CABINET. 6. PAIRS 1 THROUGH 25 OF THE COMMUNICATIONS CABLE INCOMING FROM THE DIRECTION OF THE SYSTEM CONTROL UNIT LOCATION SHALL BE SECURED ON THIS PANEL ON THE LEFT SIDE OF THE 66M BLOCK AND TERMINATED ON THE FIRST COLUMN OF PINS, COUNTING FROM LEFT TO RIGHT. PAIRS 1 THROUGH 25 OF THE FIRST OUTGOING COMMUNICATIONS CABLE SHALL BE SECURED ON THIS PANEL ON THE RIGHT SIDE OF THE 66M BLOCK AND TERIMINATED ON THE SECOND COLUMN OF PINS. PAIRS 1 THROUGH 25 OF THE SECOND OUTGOING COMMUNICATIONS CABLE SHALL BE SECURED ON THIS PANEL ON THE RIGHT SIDE OF THE 66M BLOCK AND TERMINATED ON THE THIRD COLUMN OF PINS. 7. EACH COMMUNICATIONS CABLE SHALL BE PERMANENTLY LABELLED NEAR THE TERMINATION POINT ON THIS PANEL WITH THE NAME OF THE INTERSECTION AT WHICH THE OTHER END OF THE COMMUNICATIONS CABLE IS TERMINATED ADDITIONAL PANELS ADDITIONAL 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANELS SHALL BE PROVIDED IF CALLED FOR ON THE PLANS DOCUMENTATION FIVE WIRING DIAGRAMS AND PARTS LISTS FOR THE 3 CABLE LOCAL COMMUNICATIONS INTERFACE PANELS SHALL BE PROVIDED. 4.7 VOICE POWERED COMMUNICATIONS HEADSET DESCRIPTION THE VOICE POWERED COMMUNICATIONS HEADSET SHALL FIT OVER A PERSON'S HEAD AND INCLUDE ACOUSTIC BOOM AND AN EXTENSION CORD. THE HEADSET SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE HEADSET SHALL ALLOW HANDS-FREE OPERATION

9 2. THE HEADSET SHALL ALLOW THE BOOM TO BE WORN ON EITHER SIDE OF THE HEAD. 3. THE HEAD CORD AND EXTENSION SHALL BE A MINIMUM OF TEN (10) FEET IN LENGTH. 4. THE HEADSET SHALL TERMINATE INTO A STANDARD TWO CONDUCTOR, QUARTER INCH, PHONE PLUG THAT WILL MATE WITH THE CORRESPONDING VOICE POWERED HEADSET JACK ON THE LOCAL COMMUNICATIONS INTERFACE PANEL IN EACH CABINET. 5. CLEAR COMMUNICATIONS SHALL BE POSSIBLE WITH ENVIRONMENTAL NOISE LEVELS UP TO 100 DBA, AND THE HEADSET SHALL HAVE A NOISE REDUCTION RATING (NRR) OF AT LEAST 16 DB INSTALLATION THE NUMBER OF HEADSETS PROVIDED SHALL BE AS SHOWN ON THE PLANS. 4.8 EIA RS-232C SERIAL CABLES DESCRIPTION THE EIA RS-232C SERIAL CABLES SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE CABLE SHALL BE TEN (10) FEET IN LENGTH. 2. THE CABLE SHALL BE CONSTRUCTED WITH 24 AWG CONDUCTOR SURROUNDED BY AN ALUMINUM FOIL SHIELD, JACKETED IN PVC AND TERMINATED WITH DIE CAST ZINC HOODS AND APPROPRIATE STRAIN RELIEFS. 3. THE CABLE SHALL BE TESTED FOR CONTINUITY AND SHIELDING EFFECTIVENESS. 4. THE CABLE SHALL HAVE MALE DB25 CONNECTORS ON EACH END AND SHALL BE CONFIGURED TO PROVIDE A MALE-TO-MALE, STRAIGHT THROUGH CONNECTION FOR EACH PIN OF THE RS-232C SIGNAL. 5. THE CABLE SHALL BE COMPATIBLE WITH COMPUTER AND COMMUNICATIONS EQUIPMENT. 6. BOTH CONNECTORS SHALL HAVE CAPTIVE JACK SCREWS WITH NO THREADS INSTALLATION THE NUMBER OF CABLES PROVIDED SHALL BE AS SHOWN ON THE PLANS. 4.9 SHIELDED NULL MODEMS DESCRIPTION THE SHIELDED NULL MODEM SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE MODEM SHALL MAINTAIN THE INTEGRITY OF THE EIA RS-232C CABLES. 2. THE MODEM SHALL BE OF PC BOARD CONSTRUCTION AND SURROUNDED BY A METAL SHELL AND A PVC MOLDED CASE

10 3. THE MODEM SHALL HAVE A MALE AND FEMALE DB25 CONNECTOR. 4. THE MODEM SHALL ADHERE TO THE FOLLOWING WIRING CONFIGURATION: INSTALLATION DEC TYPE CONTACT NO. TO CONTACT NO THE NUMBER OF SHIELDED NULL MODEMS PROVIDED SHALL BE AS SHOWN ON THE PLANS SYSTEM DETECTOR PANEL GENERAL REQUIREMENTS THE SYSTEM DETECTOR PANEL SHALL PROVIDE ALL CONNECTIONS BETWEEN THE DETECTOR LOOPS AND THE DETECTOR AMPLIFIERS, PEDESTRIAN CALL ISOLATION, AND DETECTOR TEST SWITCHES. IT SHALL ALSO PROVIDE FOR ALL CONNECTIONS BETWEEN THE DETECTOR AMPLIFIERS AND EXTERNAL CONTROL UNITS. THE SYSTEM DETECTOR PANEL SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE PANEL SHALL BE CONSTRUCTED OF 1/8" ALUMINUM. 2. THE PANEL SHALL CONTAIN A THREE INCH HORIZONTAL SLOT IN EACH CORNER TO ACCOMMODATE 0.25 INCH MOUNTING BOLTS. 3. INPUTS FROM THE LOOPS SHALL BE BROUGHT THROUGH POSTED X 5/16 INCH BINDER SCREW TERMINALS. 4. EACH LOOP PAIR SHALL BE PROTECTED BY LIGHTING SURGE SUPPRESSORS PREQUAILFIED FOR USE ON LOOP DETECTOR INPUTS BY THE DEPARTMENTS' TRAFFIC OPERATIONS DIVISION. THE SUPPRESSORS MAY BE MOUNTED EITHER ON THE FRONT OR BEHIND THE PANEL. 5. THE OUTPUTS FROM THE DETECTOR AMPLIFIERS TO EXTERNAL CONTROL UNITS SHALL BE BROUGHT THROUGH POSTED 6-32 X 1/4 INCH BINDER HEAD SCREW TERMINALS WITH REMOVABLE SHORTING BARS INSTALLED. 6. THE PANEL SHALL PROVIDE THE FOLLOWING CONNECTION POINTS AS A MINIMUM FOR SIXTEEN (16) DETECTORS:

11 CONNECTION POINT NO. OF CONNECTION POINTS LOOP OUTPUTS 16, 1 FOR EACH DETECTOR (COLLECTORS) LOOP OUTPUTS 16, 1 FOR EACH DETECTOR (EMITTERS) DATA TRANSMIT 1 DATA RECEIVE 1 RESET 1 EXTERNAL 24V 1 POWER SUPPLY LOOP INPUTS 32, 2 FOR EACH DETECTOR LOGIC GROUND 6 SPARES 6 DELAY INHIBIT 16, 1 FOR EACH DETECTOR CHASSIS GROUND 1 BUS BUS 7. THE LOOP OUTPUTS (EMITTERS) SHALL BE BUSSED TOGETHER WITH INDIVIDUAL CLIPS ON THE FRONT OF THE PANEL. THE EMITTERS SHALL BE STRAPPED ON THE FRONT OF THE PANEL TO A LOGIC GROUND TERMINAL. 8. THE LOGIC GROUND TERMINALS SHALL BE BUSSED ON THE BACK OF THE PANEL WITH A BUS BAR. 9. A CHASSIS GROUND BUS BAR SHALL BE PROVIDED ON THE PANEL AND CONNECTED TO THE CABINET BY AN INSULATED BRAIDED COPPER GROUND STRAP. THE STRAP SHALL BE BONDED TO THE CABINET. 10. AN ON-OFF-MOMENTARY TOGGLE SWITCH SHALL BE PROVIDED FOR EACH DETECTOR CIRCUIT AND PEDESTRIAN PHASE IF APPLICABLE TO PERMIT THE USER TO DISCONNECT THE DETECTOR INPUT FROM THE CONTROL UNIT, OR PERMIT THE USER TO PLACE A CALL TO THE CONTROL UNIT. THE MOMENTARY POSITION SHALL PLACE A CALL TO THE CONTROL UNIT. THE ON POSITION SHALL CONNECT THE DETECTOR TO THE CONTROL UNIT. THE CENTER OFF POSITION SHALL DISCONNECT THE DETECTOR FROM THE CONTROL UNIT. 11. PEDESTRIAN CALLS FROM PUSHBUTTONS SHALL BE OPTICALLY ISOLATED FROM THE CONTROLLER INPUTS USING EXTERNAL SOLID STATE CIRCUITRY MOUNTED ON A PEDESTRIAN ISOLATION CARD INSTALLATION ONE SYSTEM DETECTOR PANEL SHALL BE FURNISHED AND INSTALLED IN THE SIGNAL CONTROLLER CABINETS AS SHOWN ON THE PLANS DOOR SWITCH DESCRIPTION THE DOOR SWITCH SHALL MEET THE FOLLOWING REQUIREMENTS: 1. THE SWITCH SHALL BE A MOMENTARY, PIN-TYPE DOOR SWITCH. 2. THE SWITCH SHALL BE INSTALLED IN THE CABINET OR ON THE DOOR. 3. THE SWITCH SHALL BE CONNECTED TO A TERMINAL SO THAT THE LOCAL CONTROL UNIT DOOR OPEN CONFIRM INPUT IS CONNECTED TO LOGIC GROUND WHEN THE CABINET DOOR IS OPEN

12 INSTALLATION ONE DOOR SWITCH SHALL BE FURNISHED AND INSTALLED IN EACH SIGNAL CONTROLLER CABINET AS SHOWN ON THE PLANS. 5.0 MEASUREMENT AND PAYMENT NO DIRECT MEASUREMENT OR PAYMENT WILL BE MADE FOR THE WORK TO BE DONE OR THE EQUIPMENT TO BE FURNISHED UNDER THIS ITEM, BUT IT WILL BE CONSIDERED SUBSIDIARY TO THE PARTICULAR ITEMS REQUIRED BY THE PLANS AND THE CONTRACT