SPECIAL SPECIFICATION 6612 T1 Discrete Cosine Transform (DCT) Color Video Compression System

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1 1993 Specifications Fort Worth District SPECIAL SPECIFICATION 6612 T1 Discrete Cosine Transform (DCT) Color Video Compression System 1. DESCRIPTION. THIS ITEM SHALL REGULATE THE FURNISHING AND INSTALLATION OF T1 DCT COLOR VIDEO COMPRESSION SYSTEM (CVCS) AS SHOWN IN THE PLANS AND DETAILED IN THIS SPECIFICATION. (1) SPECIFICATIONS AND STANDARDS. THE SPECIFICATIONS AND STANDARDS REFERENCED IN THIS ITEM ARE AS FOLLOWS: - EIA TENTATIVE STANDARD RS-170A - EIA STANDARD RS NEMA STANDARD TS 1 - SPECIAL SPECIFICATION ITEM, "ELECTRONIC COMPONENTS" - SPECIAL SPECIFICATION ITEM, "TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY" - VECTOR HORACE: TELEVISION COMPRESSION & TRANSMISSION PROTOCOL FOR NTSC COLOR IMAGES SPECIFICATION, SEPT 1992, PUBLISHED BY RANGE COMMANDERS COUNCIL, U.S. ARMY. - BELLCORE TECHNICAL REFERENCE TR-INS HIGH CAPACITY DIGITAL TRANSMISSION PARAMETERS. 2. MATERIALS. (1) GENERAL REQUIREMENTS. ALL MATERIALS FURNISHED, ASSEMBLED, FABRICATED OR INSTALLED UNDER THIS ITEM SHALL BE NEW, CORROSION RESISTANT AND IN STRICT ACCORDANCE WITH THE DETAILS SHOWN ON THE PLANS AND AS DETAILED IN THIS SPECIFICATION. 1. EQUIPMENT. EACH CVCS, FURNISHED AND INSTALLED AS SHOWN IN THE PLANS, SHALL CONSIST OF, BUT SHALL NOT BE LIMITED TO, THE FOLLOWING: - COLOR VIDEO COMPRESSION ENCODER - COLOR VIDEO COMPRESSION DECODER - T1 COMPRESSED VIDEO COMMUNICATION LINK

2 - VIDEO, DATA, POWER CABLE HARNESSES, CONNECTORS - INSTALLATION AND MOUNTING FIXTURES - INTERNAL INTERFACE CSU/DSU CARDS (2) FUNCTIONAL REQUIREMENTS. THE CVCS SHALL BE ABLE TO COMMUNICATE ITS VIDEO SIGNAL, FULL DUPLEX RS-232 REMOTE CONTROL OF THE ENCODER, FULL DUPLEX RS-232 PAN/TILT/ZOOM CAMERA CONTROL, TWO ADDITIONAL FULL DUPLEX RS-232 COMMUNICATIONS LINES, AND ORDER WIRE VOICE SIGNAL VIA A SINGLE DIGITAL TRANSMISSION MEDIA, SUCH AS A LEASED T1 TELEPHONE SERVICE CONNECTION, BETWEEN SPECIFIED LOCATIONS AS SHOWN IN THE PLANS AND AS DETAILED IN THIS SPECIFICATION. THE COMPRESSION TECHNIQUE USED SHALL RESULT IN NO BLURRING OF THE COMPRESSED PICTURE UPON THE ENCODING AND DECODING OF ANY TYPE OF MOVING OBJECTS WITHIN A GIVEN PICTURE. INTERFRAME CODING TECHNIQUES (TELECONFERENCING ALGORITHMS) SHALL NOT BE ACCEPTABLE. THE TWO ADDITIONAL SERIAL PORTS, PROVIDED BY THE ENCODER AND DECODER, MAY BE USED TO TRANSPORT FULL DUPLEX DATA FOR AUXILIARY SYSTEMS SUCH AS CHANGEABLE MESSAGE SIGNS, VIDEO IMAGE PROCESSING (VIDEO DETECTIONS), AND RAMP METERING. THE FULL DUPLEX RS-232 CAMERA CONTROL AND THE TWO ADDITIONAL RS- 232 SERIAL PORTS SHALL OPERATE AT UP TO 9600 BPS SIMULTANEOUSLY. THE CVCS SHALL DYNAMICALLY ALLOCATE BANDWIDTH FOR DATA AND/OR VOICE SIGNALS; DATA AND VOICE SIGNALS SHALL USE BANDWIDTH ONLY WHEN THEY ARE ACTIVE. VIDEO TRANSMISSION SHALL CONTINUE DURING DATA AND VOICE OPERATION. VIDEO FRAME RATE MAY BE REDUCED WITH NO LOSS OF VIDEO RESOLUTION DURING VOICE OR INTENSIVE DATA TRANSMISSION. THE ENCODER SHALL CONTAIN NO INTERNAL BATTERIES. BOTH THE ENCODER AND DECODER UNITS SHALL AUTOMATICALLY SELF- CONFIGURE UPON POWER UP. ALL REQUIRED SET UP AND MAINTENANCE SOFTWARE, AND CONFIGURATION DATA, SHALL RESIDE IN THE ROM OR IN NON-VOLATILE RAM IN THE ENCODER AND DECODER. THE ENCODER AND DECODER SHALL EACH PROVIDE ONE RS-232 PORT FOR LOCAL ADMINISTRATION (MAINTENANCE). THE LOCAL ADMINISTRATION PORT SHALL ALLOW MAINTENANCE PERSONNEL TO OVERRIDE REMOTE ACCESS TO THE ENCODER BY CONNECTION OF A LAPTOP COMPUTER. THIS ARRANGEMENT SHALL BE CONFIGURED SO THAT WHEN THE LAPTOP COMPUTER IS DISCONNECTED FROM THE ADMINISTRATION PORT, THE CENTRAL LOCATION WILL AUTOMATICALLY REGAIN CONTROL OF THE ENCODER

3 THE ENCODER AND THE DECODER SHALL ALSO EACH PROVIDE A VOICE ORDER WIRE TELEPHONE CIRCUIT FOR ON SITE MAINTENANCE PERSONNEL. THE VOICE ORDER WIRE SHALL ALLOW MAINTENANCE PERSONNEL TO PLUG A TELEPHONE INTO THE CVCS AND TALK TO THE CENTRAL LOCATION. THIS ARRANGEMENT SHALL BE CONFIGURED SO THAT WHEN THE PHONE AT THE FIELD LOCATION IS PICKED UP, THE PHONE AT THE CENTRAL LOCATION WILL RING. ALL RS-232 COMMUNICATIONS LINKS, AND VOICE ARE MULTIPLEXED INTO THE VIDEO BIT STREAM. BOTH THE COLOR VIDEO COMPRESSION ENCODER AND DECODER SHALL BE FROM THE SAME MANUFACTURER. 1. COLOR VIDEO COMPRESSION ENCODER. THE CONTRACTOR SHALL FURNISH AND INSTALL ENCODER(S) IN THE FIELD LOCATION(S) AS SHOWN IN THE PLANS. THE ENCODER SHALL COMPRESS A STANDARD ANALOG COLOR VIDEO SIGNAL AND OUTPUT A SINGLE CONTINUOUS DIGITAL NRZ-L TTL LEVEL SERIAL BIT STREAM OUTPUT, REPRESENTING THE INPUT PICTURE, CLOCKED AT RATES FROM 300 BPS TO 10 MBPS, INCLUDING 9.6 KBPS, 19.2 KBPS, 56 KBPS, 64 KBPS, 256 KBPS, MBPS (T1) AND MBPS (T2). THE CLOCK RATE SHALL BE PROVIDED BY THE T-1 MODEM CARD, OR T-1 LEASED LINE, OR GENERATED INTERNALLY IF THE T-1 MODEM CARD IS DISCONNECTED. INTERNAL CLOCK RATES SHALL BE SOFTWARE SELECTABLE. THE ENCODER SHALL RECEIVE FULL DUPLEX RS-232 CAMERA CONTROL DATA SIGNALS (I. E. PAN, TILT, ZOOM, FOCUS AND IRIS) TO CONTROL CAMERA FUNCTIONS, FROM THE EXISTING CCTV CAMERA CONTROLLER IN THE SATELLITE BUILDING, VIA THE DECODER AND THE T-1 TELEPHONE LINE. THE ENCODER SHALL BE CAPABLE OF RECEIVING RS-232 ENCODER CONTROL SIGNAL DATA AS REQUIRED, ALLOWING FOR REMOTE ENCODER SET UP USING ANY DOS BASED PC WITH TERMINAL EMULATION. SET UP SHALL INCLUDE USER SELECTABLE ADJUSTMENTS FOR HORIZONTAL RESOLUTION (PIXELS/LINE), QUANTIZATION LEVEL, CROP MODE, DATA LINK SPEED, COLOR, TINT, SYSTEM DEFAULTS, TEST PATTERNS, AND SYSTEM STATUS INFORMATION. RS-232 COMMUNICATION LINK SHALL SUPPORT BAUD RATES OF 300, 1200, 2400, 4800 AND ALL OF THE EXTERNAL RS-232 PROGRAMMING SHALL BE HELD IN EEPROM AND SHALL THEREFORE BE RETAINED UPON POWER DOWN

4 THE ENCODER SHALL INCLUDE A T1 INTERFACE MODEM. THIS INTERFACE SHALL BE IN ACCORDANCE WITH BELLCORE DOCUMENT TR-INS HIGH CAPACITY DIGITAL TRANSMISSION PARAMETERS. 2. COLOR VIDEO COMPRESSION DECODER. THE CONTRACTOR SHALL FURNISH AND INSTALL DECODER(S) AS SHOWN ON THE PLANS AT THE SATELLITE BUILDING AND/OR AT THE CENTRAL LOCATION AS SHOWN ON THE PLANS. THE DECODER SHALL RECEIVE VIDEO SIGNALS FROM THE ENCODER VIA THE T1 LINK, OR INTERNALLY CLOCKED BIT STREAM VIA THE DTE PORT, AS A SINGLE CONTINUOUS DIGITAL NRZ-L TTL LEVEL SERIAL BIT STREAM OUTPUT REPRESENTING THE INPUT PICTURE. CLOCK RATES SHALL BE FROM 300 BPS TO 10 MBPS AND SHALL BE PROVIDED BY THE T-1 INTERFACE MODEM OR THE T-1 LEASED LINE, OR GENERATED INTERNALLY IF THE T-1 INTERFACE MODEM IS DISCONNECTED. INTERNAL CLOCK RATES SHALL BE SOFTWARE SELECTABLE AND SHALL BE AVAILABLE FOR USE FOR ANY FUTURE CHANGES OR EXPANSION. THE DECODER SHALL CONVERT THE DIGITAL VIDEO SIGNAL BACK TO ORIGINAL STANDARD NTSC COLOR ANALOG TELEVISION PICTURE CAPABLE OF BEING DISPLAYED ON ANY STANDARD TELEVISION MONITOR AND/OR RECORDED ON A STANDARD VIDEOTAPE RECORDER. THE DECODER SHALL RECEIVE, FROM THE ENCODER, RS-232 FULL DUPLEX CAMERA CONTROL AND RS-232 ENCODER CONTROL DATA SIGNALS. THE DECODER SHALL ALSO SEND FULL DUPLEX RS-232 DIGITAL CAMERA CONTROL AND ENCODER CONTROL DATA SIGNALS BACK TO THE ENCODER. THE DECODER OPERATING PARAMETERS SHALL BE AUTOMATICALLY SELECTED FROM THE INFORMATION CONTAINED IN THE RECEIVED COMPRESSED VIDEO DATA STREAM. INFORMATION PERTAINING TO OPERATIONAL MODES, PARAMETERS, SYSTEM STATUS, RESOLUTIONS, ETC SHALL BE DISPLAYED IN ALPHANUMERIC DISPLAY LOCATED ON THE FRONT PANEL OF THE DECODER. THE FRONT PANEL, AS A MINIMUM, SHALL ALSO HAVE INDICATOR LIGHTS FOR SYSTEM STATUS OPERATION, RESET BUTTON, TEST MODES SWITCH AND POWER SWITCH. IN ADDITION TO THE PORT FOR LOCAL ADMINISTRATION, THE DECODER SHALL PROVIDE AN RS-232 PORT FOR REMOTE ADMINISTRATION. THE DECODER FEATURES SHALL BE ACCESSIBLE AND PROGRAMMABLE VIA THE REAR PANEL SERIAL PORT

5 3. T1 COMPRESSED VIDEO COMMUNICATION LINK. T1 COMMUNICATION LINK SHALL BE COMMERCIALLY AVAILABLE SERVICE CAPABLE OF SUSTAINING A MINIMUM CONTINUOUS COMMUNICATION RATE OF MBPS UTILIZING TRANSMISSION MEDIA (FIBER LINES, MICROWAVE LINK OR TELEPHONE SERVICE CONNECTIONS) AS DETAILED IN THE PLANS. THE CONTRACTOR SHALL ACQUIRE AND BEAR THE CHARGES OF INSTALLING AND CONNECTING THE T1 LINK FOR LOCATIONS AS SHOWN ON THE PLANS OR AS DIRECTED BY THE ENGINEER. 4. BIT ERROR RATE (BER). THE BIT ERROR RATE OF 9600 BPS DATA CHANNEL OR THE T1 DATA CHANNEL SHALL NOT EXCEED 10 TO THE - 9 POWER. 3. ELECTRICAL REQUIREMENTS. (1) COLOR VIDEO COMPRESSION ENCODER. 1. ANALOG INPUT. THE ENCODER VIDEO INPUT SHALL BE 75 OHMS NOMINAL, ACCEPTING INPUT LEVELS FROM 0.5 VOLT TO 2.0 VOLT PEAK-TO-PEAK BETWEEN SYNC TIP TO 100% WHITE LEVEL IN ACCORDANCE WITH EIA-170A. 2. DIGITAL OUTPUT. THE ENCODER VIDEO OUTPUT SHALL BE CAPABLE OF PROVIDING AT LEAST ONE CONTINUOUS DIGITAL MULTIPLEXED OUTPUT REPRESENTING THE INPUT PICTURE, ALL ACTIVE VOICE AND DATA COMMUNICATION LINES, CLOCKED AT RATES FROM 300 BPS TO 10 MBPS. WITH THE INTERNAL T1 INTERFACE MODEM INSTALLED AND OPERATIONAL, THE DIGITAL DATA OUTPUT SHALL BE IN THE FORMATTED DS-1 PROTOCOL AT MBPS. 3. BIT RATE. THE ENCODER SHALL HAVE BIT RATES FROM 300 BPS TO 10 MBPS, OR EXTERNAL CLOCK. THE BIT RATE SHALL BE USER SELECTABLE. 4. RESOLUTION. THE ENCODER SHALL RESOLVE UP TO 400 TV LINES OF VIDEO. THE THREE SELECTABLE HORIZONTAL RESOLUTIONS SHALL BE 560 PIXELS/LINE IN HIGH RESOLUTION MODE, 280 PIXELS/LINE IN STANDARD RESOLUTION MODE, AND 140 PIXELS/LINE IN LOW RESOLUTION MODE. 5. TRANSMISSION FORMAT. THE COLOR VIDEO ENCODER SHALL UTILIZE THE DCT DISCRETE COSINE TRANSFORM ALGORITHM METHOD OF COMPRESSION/DECOMPRESSION. THE COMPRESSION ALGORITHM SHALL BE BASED UPON THE "VECTOR HORACE: TELEVISION COMPRESSION AND TRANSMISSION PROTOCOL FOR NTSC COLOR IMAGES" SPECIFICATION, SEPT 1992, PUBLISHED BY RANGE COMMANDERS COUNCIL, U.S. ARMY

6 6. CONNECTORS. THE POWER CONNECTOR SHALL BE A STANDARD AND GROUNDED THREE TERMINAL INTERNATIONALLY APPROVED SOCKET TYPE TO ACCEPT A MOLDED, DETACHABLE POWER CORD. THE ENCODER SHALL HAVE ONE RJ-11 JACK FOR VOICE ORDER WIRE COMMUNICATION AND FOUR RS-232 PORTS. ONE RS-232 PORT FOR COMMUNICATION WITH THE CAMERA CONTROL RECEIVER IN THE FIELD, ONE PORT FOR ENCODER SET UP (LOCAL ADMINISTRATION), AND TWO RS-232 PORTS FOR COMMUNICATIONS, AT UP TO 9600 BPS EACH, WITH AUXILIARY TXDOT SYSTEMS. THE RS-232 SERIAL COMMUNICATIONS PORTS SHALL BE A 25 PIN "D" TYPE FEMALE CONNECTOR. THREE VIDEO INPUT CONNECTORS SHALL BE BNC TYPE CONNECTORS. T1 DATA CONNECTOR SHALL BE A DB-15 CONNECTOR. 7. VIDEO SIGNALS. THE ENCODER SHALL BE CONFIGURED SO THAT UP TO THREE SEPARATE VIDEO SIGNALS CAN BE CONNECTED TO THE ENCODER AND EACH CAN BE SELECTED (ONE AT A TIME) VIA THE RS-232 COMMAND FUNCTIONS. (2) COLOR VIDEO COMPRESSION DECODER. 1. DECODER INPUT. THE DECODER VIDEO DATA INPUT SIGNALS SHALL BE AT RATES FROM 300 BPS TO 10 MBPS OR AT A FIXED USER SPECIFIED RATE (EXTERNAL CLOCK MODE). AT MBPS, THE DECODER VIDEO DATA INPUT SIGNAL SHALL BE AT T1 RATE AND PROTOCOL VALUES. DATA POLARITY AT THE DECODER SHALL BE NORMALLY NON-INVERTED IN RELATION TO THE POLARITY OF THE ENCODER OUTPUT. 2. ANALOG OUTPUT. THE DECODER VIDEO OUTPUT SHALL BE 75 OHMS NOMINAL, 1.0 VOLT PEAK-TO PEAK BETWEEN SYNC TIP AND 100% WHITE LEVEL IN ACCORDANCE WITH EIA-170A. 3. VIDEO SIGNAL-TO-NOISE RATIO. THE VIDEO SIGNAL-TO-NOISE RATIO, MEASURED AS PEAK-TO-PEAK WHITE TO BLANKING, TO RMS NOISE (WEIGHTED AT 4.5 MHZ) SHALL BE 47 DB OR BETTER. 4. RS-232 DATA RATES. THE CVCS SHALL SUPPORT FULL DUPLEX DATA TRANSMISSION RATES FROM 300 BPS UP TO AND INCLUDING 9600 BPS. 5. CONNECTORS. THE POWER CONNECTOR SHALL BE A STANDARD AND GROUNDED THREE TERMINAL INTERNATIONALLY APPROVED SOCKET TYPE TO ACCEPT A MOLDED, DETACHABLE POWER CORD. THE DECODER SHALL HAVE ONE RJ-11 JACK FOR VOICE ORDER WIRE COMMUNICATION AND FIVE RS-232 PORTS. ONE RS-232 PORT SHALL COMMUNICATE WITH THE EXISTING MASTER CAMERA CONTROLLER IN THE SATELLITE BUILDING, TWO PORTS SHALL BE USED FOR ENCODER/DECODER SET UP (ONE PORT FOR LOCAL ADMINISTRATION AND THE OTHER FOR REMOTE ADMINISTRATION) AND THE OTHER TWO RS-232 SERIAL PORTS SHALL PROVIDE COMMUNICATIONS, AT UP TO 9600 BPS EACH, FOR AUXILIARY TXDOT SYSTEMS. THE RS

7 SERIAL COMMUNICATIONS PORTS SHALL BE A 25 PIN "D" TYPE FEMALE CONNECTOR. THREE VIDEO OUTPUT CONNECTORS SHALL BE BNC TYPE CONNECTORS. T1 DATA CONNECTOR SHALL BE A DB-15 CONNECTOR. 6. DECODER ADDRESS. EACH DECODER SHALL HAVE A UNIQUE ADDRESS WHICH IS CHANGEABLE BY AN INTERNAL DIP SWITCH. THE DECODER SHALL RESPOND TO THE PC CONTROL OR ENQUIRIES IF AND ONLY IF IT IS ADDRESSED. (3) POWER REQUIREMENTS. 1. INPUT VOLTAGE. THE COLOR VIDEO COMPRESSION ENCODER AND DECODER SHALL OPERATE AND PERFORM THEIR FUNCTIONS WHEN SUPPLIED WITH AN INPUT VOLTAGE OF 115 VAC +/- 10%, 60 HZ +/- 3 HZ, SINGLE PHASE. 1) INPUT POWER INTERRUPTION. THE CVCS SHALL MEET ALL THE REQUIREMENTS OF SECTION TS , "POWER INTERRUPTION" OF NEMA STANDARD TS POWER CONSUMPTION. THE MAXIMUM POWER CONSUMPTION OF THE CVCS SHALL NOT EXCEED 60 WATTS TOTAL. 3. TRANSIENT SUPPRESSION. THE CVCS OPERATION SHALL NOT BE AFFECTED BY TRANSIENT VOLTAGES, SURGES AND SAGS NORMALLY EXPERIENCED ON COMMERCIAL POWER LINES. THE LOCAL POWER SERVICE SHALL BE CONTACTED, IF NECESSARY, TO DETERMINE IF ANY SPECIAL DESIGN IS NEEDED FOR THE EQUIPMENT. THE EXTRA COST, IF REQUIRED, SHALL BE INCLUDED IN THE BID OF THIS ITEM. 1) POWER SERVICE TRANSIENTS. THE CVCS EQUIPMENT SHALL MEET ALL REQUIREMENTS OF SECTION TS , "TRANSIENTS, POWER SERVICE" OF NEMA STANDARD TS 1. 2) COIL TRANSIENTS. ALL DC RELAYS, SOLENOIDS, AND HOLDING COILS SHALL HAVE DIODES, CAPACITORS, OR OTHER PROTECTIVE DEVICES ACROSS THEIR COILS FOR TRANSIENT SUPPRESSION. 4. WIRING. ALL WIRING SHALL MEET THE REQUIREMENTS OF THE NATIONAL ELECTRIC CODE. ALL WIRES SHALL BE CUT TO PROPER LENGTH. CABLE SLACK SHALL BE PROVIDED TO FACILITATE REMOVAL AND REPLACEMENT OF ASSEMBLIES, PANELS, AND MODULES. NO WIRE SHALL BE DOUBLED BACK TO TAKE UP SLACK. WIRES SHALL BE NEATLY LACED INTO CABLES WITH NYLON LACING, PLASTIC STRAPS, OR PROPERLY SIZED HELI-COIL TUBING AND SECURED IN PLACE WITH CLAMPS. 5. POWER SERVICE PROTECTION. THE CVCS EQUIPMENT SHALL CONTAIN READILY ACCESSIBLE, MANUALLY RESETTABLE OR

8 REPLACEABLE CIRCUIT PROTECTION DEVICES (SUCH AS CIRCUIT BREAKERS OR FUSES) FOR EQUIPMENT AND POWER SOURCE PROTECTION. 6. FAIL SAFE PROVISION. THE CVCS EQUIPMENT SHALL BE DESIGNED SUCH THAT ANY FAILURE OF THE EQUIPMENT SHALL NOT CAUSE THE FAILURE OF ANY OTHER EQUIPMENT. (4) MECHANICAL REQUIREMENTS. 1. MODULAR DESIGN. THE CVCS EQUIPMENT SHALL BE MODULAR IN DESIGN AND CONSTRUCTION TO ALLOW MAJOR PORTIONS TO BE READILY REPLACED IN THE FIELD TO INSURE EASE OF MAINTENANCE. ALL MODULES AND ASSEMBLIES SHALL BE CLEARLY IDENTIFIED WITH NAME, MODEL NUMBER, SERIAL NUMBER, AND ANY OTHER PERTINENT INFORMATION REQUIRED TO FACILITATE EQUIPMENT MAINTENANCE. MODULES OF UNLIKE FUNCTIONS SHALL BE MECHANICALLY KEYED TO PREVENT INSERTION INTO THE WRONG SOCKET OR CONNECTOR. 2. CONNECTORS AND HARNESSES. EXTERNAL CVCS CONNECTIONS SHALL BE MADE BY CONNECTORS. THE CONNECTORS SHALL BE CONFIGURED TO PRECLUDE IMPROPER HOOKUPS. ALL WIRES TO AND FROM THE CONNECTORS SHALL BE COLOR CODED AND/OR APPROPRIATELY MARKED. CONDUCTIVE PINS OR CONTACT SURFACES OF CONNECTORS SHALL BE PLATED WITH A MINIMUM OF 30 MICRONS OF GOLD. CONNECTING HARNESSES OF APPROPRIATE LENGTH AND TERMINATED WITH MATCHING CONNECTORS SHALL BE PROVIDED FOR INTERCONNECTION WITH ALL INTERFACE EQUIPMENT. 3. HOUSING. THE ENCODER AND DECODER SHALL EACH BE A STANDARD COMPACT SERVICEABLE 19 INCH EIA RACK MOUNT MODULE. (5) DIMENSIONS. 1. ENCODER/DECODER DIMENSIONS. DIMENSIONS OF THE ENCODER AND DECODER SHALL EACH NOT EXCEED 5.5 IN. HIGH X 19.0 IN. WIDE X 12.0 IN. DEEP. 2. WEIGHT. 1) ENCODER/DECODER WEIGHT. THE WEIGHT OF THE ENCODER AND DECODER SHALL EACH NOT EXCEED 15 POUNDS MAXIMUM. (6) ENVIRONMENTAL REQUIREMENTS. THE CVCS SHALL OPERATE AND PERFORM THEIR REQUIRED FUNCTIONS OVER AN OPERATIONAL

9 TEMPERATURE RANGE OF FROM 0 F TO 140 F, AT RELATIVE HUMIDITIES OF UP TO 95%. THE ENCODER SHALL BE LOCATED INSIDE THE CCTV EQUIPMENT/SURVEILLANCE CABINET AND THE DECODER SHALL BE LOCATED IN THE EXISTING SATELLITE BUILDING AS SHOWN IN THE PLANS. (7) CONSTRUCTION METHODS. 1. GENERAL. THE CVCS DESIGN AND CONSTRUCTION SHALL UTILIZE THE LATEST AVAILABLE TECHNIQUES WITH A MINIMUM NUMBER OF PARTS, SUBASSEMBLIES, CIRCUITS, CARDS, AND MODULES TO MAXIMIZE STANDARDIZATION AND COMMONALITY. THE EQUIPMENT SHALL BE DESIGNED FOR EASE OF MAINTENANCE. ALL COMPONENT PARTS SHALL BE READILY ACCESSIBLE FOR INSPECTION AND MAINTENANCE. TEST POINTS SHALL BE PROVIDED FOR CHECKING ESSENTIAL VOLTAGES AND WAVEFORMS. 2. ELECTRONIC COMPONENTS. ALL ELECTRONIC COMPONENTS SHALL COMPLY WITH SPECIAL SPECIFICATION ITEM, "ELECTRONIC COMPONENTS". 3. MECHANICAL COMPONENTS. ALL EXTERNAL SCREWS, NUTS, AND LOCKING WASHERS SHALL BE STAINLESS STEEL; NO SELF-TAPPING SCREWS SHALL BE USED UNLESS APPROVED BY THE ENGINEER. ALL PARTS SHALL BE MADE OF CORROSION RESISTANT MATERIAL, SUCH AS PLASTIC, STAINLESS STEEL, ANODIZED ALUMINUM, OR BRASS. ALL MATERIALS USED IN CONSTRUCTION SHALL BE PROTECTED FROM FUNGUS GROWTH AND MOISTURE DETERIORATION. DISSIMILAR METALS SHALL BE SEPARATED BY AN INERT DIELECTRIC MATERIAL. (8) ADDITIONAL REQUIREMENTS. 1. POWER ON INDICATOR. THE ENCODER AND DECODER SHALL PROVIDE A VISUAL INDICATION WHEN POWER IS APPLIED. 2. ENCODER/DECODER INDICATOR. THE CVCS SHALL PROVIDE A VISUAL INDICATION OF TRANSMISSION AND RECEPTION CONFIRMING THE ENCODER AND DECODER ARE DRAWING CURRENT AND THERE IS SUFFICIENT SIGNAL FOR RELIABLE OPERATION. 4. TESTING. CVCS TESTING SHALL BE IN ACCORDANCE WITH THE SPECIAL SPECIFICATION ITEM, "TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY", SECTIONS IN ADDITION, THE FOLLOWING TESTS SHALL BE PERFORMED: (1) VIDEO PERFORMANCE TESTS. VIDEO PERFORMANCE TESTING SHALL INCLUDE ALL TESTS NECESSARY TO INSURE COMPLIANCE WITH ALL OF THE REQUIREMENTS OF EIA TENTATIVE STANDARD RS-170A. THESE TESTS SHALL, AS A MINIMUM, DEMONSTRATE VIDEO SIGNAL RECEPTION

10 IN THE SATELLITE BUILDING AND/OR AT THE CENTRAL LOCATION AS SHOWN ON THE PLANS. A SIGNAL-TO-NOISE RATIO (S/N) TEST SHALL BE CONDUCTED ON ALL VIDEO LINKS. THE S/N, PEAK-TO-PEAK SIGNAL (WHITE TO BLANKING) TO RMS NOISE (WEIGHTED AT 4.5 MHZ), SHALL BE GREATER THAN 47 DB. IF SUBSYSTEM TESTS FAIL BECAUSE OF ANY COMPONENT(S) IN THE SUBSYSTEM, THE PARTICULAR COMPONENT(S) SHALL BE CORRECTED OR SUBSTITUTED WITH OTHER COMPONENT(S) AND THE TESTS SHALL BE REPEATED. IF A COMPONENT HAS BEEN MODIFIED AS A RESULT OF THE SUBSYSTEM TEST FAILURE, A REPORT DETAILING THE REASONS FOR THE TEST FAILURE AND THE MODIFICATIONS TO REMEDY THE PROBLEMS SHALL BE PREPARED AND DELIVERED TO THE ENGINEER PRIOR TO RETESTING. (2) DATA PERFORMANCE TESTS. DIGITAL DATA PERFORMANCE TESTING SHALL INCLUDE ALL TESTS NECESSARY TO INSURE COMPLIANCE WITH ALL OF THE REQUIREMENTS OF EIA STANDARD 232D. THESE TESTS SHALL, AS A MINIMUM, DEMONSTRATE DATA COMMUNICATIONS BETWEEN EACH OF THE DATA CHANNEL UNITS IN THE SATELLITE BUILDING AND/OR AT THE CENTRAL LOCATION AS SHOWN ON THE PLANS AND THE CORRESPONDING DATA CHANNEL UNITS IN THE FIELD. USING A LOOPBACK PLUG AT EACH EIA-232D CHANNEL TERMINATING AT A FIELD LOCATION, A 24 HOUR BIT ERROR RATE TEST (BERT) FOR EACH CHANNEL SHALL BE CONDUCTED USING A DATA COMMUNICATIONS TEST SET IN THE SATELLITE BUILDING AND/OR AT THE CENTRAL LOCATION AS SHOWN ON THE PLANS. THIS BERT SHALL BE USED TO DETERMINE THE BIT ERROR RATE (BER) THROUGH THE SYSTEM AND TERMINATING EQUIPMENT AT EACH END, AND TO CERTIFY THAT THE EIA-232D CHANNELS CAN OPERATE AT A SUSTAINED RATE OF 9600 BITS/SEC (BPS) FOR A 24 HOUR PERIOD. THE 511-BIT CCITT STANDARD PSEUDO-RANDOM PATTERN SHALL BE USED FOR TESTING. THE BER MEASURED AT 9600 BPS SHALL NOT EXCEED THE REQUIREMENTS OF SECTION OF THIS SPECIFICATION, AND THE ERROR FREE SECONDS (EFS) SHALL BE BETTER THAN 99.98%. IF THIS BER IS EXCEEDED ON ANY CHANNEL, THE PROBLEM SHALL BE CORRECTED AND THE ENTIRE BERT SHALL BE COMPLETELY RESTARTED FROM THE BEGINNING, AS IF NO PREVIOUS BERT HAD BEEN CONDUCTED. IF A COMPONENT HAS BEEN MODIFIED AS A RESULT OF THE SUBSYSTEM TEST FAILURE, A REPORT DETAILING THE REASONS FOR THE TEST FAILURE AND THE MODIFICATIONS TO REMEDY THE PROBLEMS SHALL BE PREPARED AND DELIVERED TO THE ENGINEER PRIOR TO RETESTING. (3) VIBRATION. THE CVCS EQUIPMENT SHALL SHOW NO DEGRADATION OF MECHANICAL STRUCTURE, SOLDERED COMPONENTS, PLUG-IN COMPONENTS, OR SATISFACTORY OPERATION AS PER SECTION TS , "VIBRATION TEST" OF NEMA STANDARD TS DOCUMENTATION REQUIREMENTS. THE CVCS DOCUMENTATION REQUIREMENTS SHALL BE IN ACCORDANCE WITH THE SPECIAL

11 SPECIFICATION ITEM, "TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY SECTION TRAINING. TRAINING SHALL BE IN ACCORDANCE WITH THE SPECIAL SPECIFICATION ITEM, "TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY", SECTION REFERENCES. THE CVCS SUPPLIER SHALL SUBMIT THREE (3) REFERENCES, PREFERABLY STATE DEPARTMENTS OF TRANSPORTATION, THAT HAVE BEEN SUCCESSFULLY OPERATING A COLOR VIDEO COMPRESSION AND DATA TRANSMISSION SYSTEM SUPPLIED BY THIS SUPPLIER, FOR A PERIOD OF NO LESS THAN ONE YEAR. REFERENCE DATA SHALL INCLUDE NAME AND ADDRESS OF ORGANIZATION, AND THE NAME AND TELEPHONE NUMBER OF AN INDIVIDUAL FROM THE ORGANIZATION WHO CAN BE CONTACTED TO VERIFY SYSTEM OPERATION. THIS INFORMATION SHALL BE PROVIDED PRIOR TO DOCUMENTATION SUBMITTAL. FAILURE TO FURNISH THE ABOVE REFERENCES WILL BE SUFFICIENT REASON FOR REJECTION OF THE SUPPLIER'S EQUIPMENT. 8. WARRANTY. THE WARRANTY SHALL BE IN ACCORDANCE WITH THE SPECIAL SPECIFICATION ITEM, "TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY", SECTION MEASUREMENT. THIS ITEM WILL BE MEASURED AS EACH CVCS FURNISHED, INSTALLED, MADE OPERATIONAL AND TESTED IN ACCORDANCE WITH THIS SPECIAL SPECIFICATION. 10. PAYMENT. THE WORK PERFORMED AND MATERIALS FURNISHED IN ACCORDANCE WITH THIS ITEM AND MEASURED AS PROVIDED UNDER "MEASUREMENT" WILL BE PAID FOR AT THE UNIT PRICE BID FOR "TI DISCRETE COSINE TRANSFORM (DCT) COLOR VIDEO COMPRESSION SYSTEM (CVCS)". THIS PRICE WILL INCLUDE ALL EQUIPMENT DESCRIBED UNDER THIS ITEM WITH ALL CABLES, CONNECTORS, ALL DOCUMENTATION AND TESTING, AND SHALL INCLUDE THE COST OF FURNISHING ALL LABOR, MATERIALS, TRAINING, WARRANTY AND EQUIPMENT NECESSARY TO COMPLETE THE WORK

SPECIAL SPECIFICATION 6735 Video Optical Transceiver

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