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1993 Specifications CSJ 0050-06-054, etc. SPECIAL SPECIFICATION ITEM 8371 CCTV CENTRAL EQUIPMENT 1. Description. This Item shall govern for the furnishing and installation of Closed Circuit Television (CCTV) central equipment in the control center as shown on the plans and as detailed in the Special Specifications. 2. Submittal Components. As a minimum, the submittal for this Item shall completely address the following: - control panel camera switching pan/tilt functions lens functions camera on/off function manual iris control numeric keypad - camera controller camera presets switch scanning interlock functions quantity of control panels - video switcher/titler quantity of video inputs quantity of video outputs input impedance output impedance frequency response gain crosstalk - character generator text size fonts available characters color (text and background) - video monitor size video input vertical resolution horizontal resolution geometric distortion gray scale scanning parameters front panel control functions connectors power video - cctv VCR recorder and titler 19 inch rack mounted front loading remote keypad control panel - equalization amplifier 1-9 distribution amplifier rack mounted modular connectors power video quantity of outputs nominal impedance video patch panels jacks patch cord and plugs accessories gold plated adapters standards compliance self terminating patch jacks vertical spacing horizontal spacing patch plug to female bnc adapter signal generator portable multi-burst parameters cross hatch pattern parameters smpte standard color bars output voltage output impedance response flatness power requirements connectors video power waveform monitor self calibration 19 inch rack mounted viewing area size frequency response vertical deflection calibration standard horizontal or vertical sync Two (2) selectable video inputs connectors video 8371 6-00 - - 3. amplification adjustments power impedance power requirements rack mounted connectors power video video timing meter synchronizes cctv camera signals without rolling hand held battery operated digital display meter carrying case coaxial cables with bnc connectors video input parameters range minimum and maximum accuracy video connectors power requirements transient suppression enclosure - drawing & dimensions system interconnection diagram environmental parameters Materials. 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 in the Specifications. (1) Functional Requirements. The Contractor shall furnish and install in the control center CCTV central equipment to control the video cameras in the field and the video signals in the control center. The CCTV central equipment shall include, but not be limited to, the following: - Video Monitors (color); Control Panel; Camera Controller; Video Switcher/Titler; and Power supplies, connectors, harness, and accessories. The camera functions to be controlled by the central camera controller shall be as described in Special Specification, "CCTV Field Equipment." The camera controller shall encode the camera control commands from the control panel switches to digital form, for transmission to the camera controllers in the field via the fiber optic network. The video switcher/titler shall provide the capability of selecting any one (1) of the video signals for display on each video monitor. The camera controller and the video switcher/titler may be one (1) integral unit housed in the same case. (a) Control Panel. The control panel shall have switches for all cameras, pan/tilt, and lens functions described in 2-9 8371 6-00 Special Specification, "CCTV Field Equipment." A numeric keypad shall be provided for camera selections. A two (2) digit numeric display shall be provided to indicate the camera selection. Switches shall also be provided to program and select a preset position for each of the cameras. All switches shall be momentary type except the pan/tilt switches which shall be in the form of a joystick. A lock type on/off switch shall be provided to control the power to the controller. Four (4) sets of keys shall be provided with the unit. All switch legends shall be clearly marked on the panel. The control panel shall also have switches and/or a keypad to control the video switcher/titler to select up to 128 video input signals as output to the video monitor. A numeric display shall be provided to indicate the video signal selection. (b) Camera Controller. The camera controller shall provide the electronics to encode the switch actuations, to translate to digital commands, and to append address bits for the particular camera being controlled. The controller shall retain the preset positions of all cameras when power is removed. The preset positions shall be changeable by operating the control panel switches. The controller shall also provide switch scanning, switch debouncing, and interlock functions so that conflicting commands such as simultaneous pan-left and pan-right will not be transmitted to the camera in the field. Response time of the switches (the time between the actuation of a switch and the occurrence of the resulting action) shall not exceed 0.5 second. The controller shall process four (4) control panels and four (4) control panels shall be provided. The controller shall be capable of controlling every camera in the field. The number of cameras are shown on the plans. The controller shall be capable of controlling up to 64 cameras and all functions of the associated pan/tilt and lens units. (c) Video Switcher/Titler. The video switcher/titler shall have 128 inputs and 16 outputs and shall be compatible with the control panel(s) described above. The video switcher/titler shall be provided with a RS-232D port to enable future control by an external computer or communications link. This interface port may be the same as the interface port on the camera controller. All interface and protocol information shall be provided to the Engineer by the Contractor with the required system documentation. The Contractor shall furnish a character generator or titler for each video input that shall insert a camera ID and message over camera generated video. The titler function shall provide a means to modify insert information. The titler shall have the following characteristics: - Display all upper and lower case letters, numbers, and punctuation characters between seven (7) and 56 scan lines. 3-9 8371 6-00 - All characters shall be white with a level between 70 percent and 100 percent with black border edges on all characters. - Shall not introduce superfluous text such as date or time. - Shall not introduce jitter in the inserted information. (d) Video Monitor. Two (2) 20 inch (measured diagonally) color video monitors shall be provided in the control center. (e) CCTV VCR Recorder and Time-Date Titler. The Contractor shall furnish a single 19 inch rack mounted front loading VHS recorder for recording and playing real time and timelapse color video. The control center operator or supervisor shall be able to exercise full control over this recorder from his or her operating position, including record, play, stop, rewind, fast-forward, input video source selection, and output video routing to the console monitor. The Contractor shall furnish a character generator or titler located in the control center, to insert text over the video feed supplying the recorder. The titler shall have, in addition to the characteristics of the video switcher/titler, the capability of inserting time and/or date information at any position on the screen. (f) Equalization Amplifiers. Rack mounted, equalization amplifier (EA) shall be required and installed between each video fiber optic receiver and the distribution amplifier. Each EA shall have a separate output brought out to a female BNC jack for monitoring purposes. Loading of the monitoring output shall not affect the signal level at the other output. (g) Distribution Amplifiers. Rack mounted, modular, distribution amplifiers (DA) shall be connected to the outputs of each EA, the VHS recorder, and the video switcher/titler in the control center. Each DA shall have a minimum of two (2) outputs. Loading of either output shall not affect the signal on the other output. DA shall have a nominal input and output impedance of 75 ohms, and must not introduce any measurable distortion to the signal. Each DA or group of DA shall have a backup power supply which will automatically supply power in the event of a failure of the primary unit. All DA inputs and outputs, including a minimum of one (1) monitoring output, shall be routed through the patch panel. (h) Video Patch Panels. The Contractor shall install, in the control center, patch bays to access video signals for monitoring, and bypassing purposes. Jacks, patch cord plugs, accessories, and adapters shall be gold plated and shall all be produced by the same manufacturer. They shall conform to the Western Electric 75 ohm (0.09 inch center pin) standard. Jacks shall be mounted in double rows on 3.5 inch panels with 0.63 inch vertical spacing and 0.83 inch horizontal spacing. If metal panels are used, provisions shall be made to insulate the cable shield from the panel. In general, signal sources shall be on the top row, and corresponding signal destinations, if any, shall be below them on the bottom row. 4-9 8371 6-00 Accessories shall be supplied based on the following percentage quantities, rounded up to the next whole number, of jacks in the patch bay: Five (5) percent - 24 inch patch cords; Five (5) percent - 48 inch patch cords; Two (2) percent - 10 feet coax cable with male BNC each end; Five (5) percent - patch plug to female BNC adapter; Five (5) percent - 75 ohm patch plug terminator; Five (5) percent - Looping plugs with pinch type handle, in addition to the number required for normal operation; and 10 percent - Unused patch bay jacks, installed in unlabeled positions. The Contractor shall furnish and install a patch bay to access video signals for monitoring and bypass purposes. A patch bay shall be required between each of the following component pairs; the fiber optic video receiver and the EA, the EA and DA, the DA and the video switcher/titler, the video switcher/titler, and monitors/recorders/video multiplexor modulators. An additional patch bay is required for terminated test points from the DA. (i) Signal Generator. The Contractor shall supply a portable video signal generator capable of supplying the following industry standard signals: - Multi-burst from 0.5 MHz to 4.5 MHz with steps not greater than one (1) MHz - Cross hatch pattern - minimum of seven (7) x 11 lines. - SMPTE standard color bars with three (3) step black plug. Output must be one (1) volt P-P with 75 ohm impedance, response flatness plus or minus one (1) percent to 10 MHz. Signals shall conform to the EIA-170 Standard. These signals shall be switch selectable to one (1) output of the generator. The generator output connector shall be the BNC type with appropriate cables and adapters supplied. The generator shall be operable from both 120 volt 60 Hz AC power and from a 12 volt automotive battery. (j) Waveform Monitor. A calibrated waveform monitor shall be permanently mounted in the equipment rack, near the patch bay, and in easy viewing distance of all video signal level adjustments. The waveform monitor shall obtain its "A" input signal from an output of the routing switcher/titler. The signal shall be looped through the patch bay and looped through the waveform monitor, where it shall be terminated with a one (1) percent tolerance, 75 ohm, terminator. The "B" input shall be available at a jack on the patch panel. The waveform monitor shall have the following characteristics: - A minimum of a five (5) inch diagonal viewing area. 5-9 8371 6-00 - Frequency response from 25 Hertz to 10 MHz flat plus or minus one (1) percent. - Full scale vertical deflection of 140 IRE units plus or minus one (1) percent. - Internal one (1) volt, plus or minus one (1) percent, calibration signal. - It must be possible to view signals at either the horizontal or vertical rate and a means must be provided for expanding any part of the signal display either vertically or horizontally. - It shall have two (2) signal inputs. The viewed signal and the scope synchronization must each be capable of being derived from either input. - Input response must be selectable between: Flat, IRE, Chroma only, and Differential Gain. - A switchable DC restorer must be provided to maintain display stability with varying APL. - Mounting hardware shall be supplied to fit a 19 inch rack, with any space not used filled in with blank-out panels. (k) Video Timing Meter. The Contractor shall deliver to the Engineer a Video Timing Meter (VTM) to be used to bring CCTV camera signals into synchronization so that monitors and recorders can be switched among cameras without causing "rolling" of the video scene. The VTM shall be a hand-held, battery operated digital display meter with carrying case. Two (2) short lengths of coax with BNC connectors and all required adapters shall be furnished. Input Video-NTSC Standard Monochrome or Color Video Base-Band. Display-Three (3) Digital LCD with two (2) Decimal Point Loss of Video Indicators. Range Minimum-Zero (0) Horizontal Lines. Range Maximum-Plus or Minus 262 Horizontal Lines (262 horizontal lines=one (1) video field) Accuracy-Plus or Minus One (1) Line. Video Connectors-Two (2) BNC Female. Power Requirements-Standard nine (9) Volt DC Alkaline Battery. Dimensions-Eight (8) inch long X four (4) inch wide X two (2) inch high. (2) Electrical Requirements. (a) Control Panel. Each control panel shall be one (1) integral unit with and shall draw its power from either the camera controller or the video switcher/titler. (b) Camera Controller. The camera controller shall be a microprocessor-based design and shall generate digital codes compatible with the field controllers. Transmit data and other hand-shake control output shall be compatible with the channel cards of the D/I Muldems. The controller shall provide for a minimum of four (4) control panels described above. In addition, the controller shall provide a RS-232D port capable of implementing any control panel function from a future external computer or 6-9 8371 6-00 through a remote communications link. This interface port may be the same as the interface port on the video switcher/titler. All interface and protocol information shall be provided to the Engineer by the Contractor with the required system documentation. (c) Video Switcher/Titler. The video switcher/titler shall have 128 inputs and 16 outputs. Each output shall be capable of being switched to any single input without affecting the state of any other output. The switcher shall only change states during the vertical interval. The video switcher/titler shall also meet the following electrical requirements: - Input impedance-High impedance looping, terminated by an external BNC 75 ohm, one (1) percent terminator. - Output impedance-75 ohms, nominal. - Frequency Response-DC to 10 MHz, plus or minus 0.5 dB. - Gain§Unity plus or minus 1.5 db. - Crosstalk-Less than 40 dB down. The Engineer shall select one (1) camera which the Contractor shall use to provide line synchronization timing by adjusting the vertical phase in all other cameras to be the same as the selected camera, see Section 3(1)(h). (d) Video Monitor. The color video monitor shall be of solid state design, with the exception of the picture tube, and shall meet the following requirements: - Video input-EIA-170 standard, black negative polarity, composite signal, BNC connector, termination selectable between high impedance loop through or 75 ohms. - Resolution- 350 lines vertical, 450 lines horizontal, measured per EIA-170 standard. - Geometric distortion-Two (2) percent maximum. - Gray scale-Capable of displaying 10 discernible shades of gray. - Scanning-2:1 interlaced, 525 lines/frame, 29.97 frames per second per EIA-170 standard, scanning rate 60 Hz vertical, and 15,750 Hz horizontal. - Control functions-front panel controls: Power on/off, contrast, brightness, horizontal hold (if used), vertical hold (if used), color (chroma), and hue (tint or phase). - Integral means shall be provided for degaussing, either automatically at power-up, or manually by means of an external pushbutton. - The monitor shall not be capable of television broadcast reception. (e) Power Requirements. The CCTV central equipment shall meet all of its specified requirements when the input power is 115 plus or minus 20 VAC, 60 plus, or minus three (3) Hz. The maximum power required shall not exceed 600 watts. The equipment operation shall not be affected by transient voltages, surges, and sags normally experienced on commercial power lines. It is the Contractor's responsibility to check the local power service to determine 7-9 8371 6-00 if any special design is needed for the equipment. The extra cost, if required, shall be included in the bid price of this Item. (f) Wiring. All wiring shall meet the requirements of the National Electric Code. All wires shall be cut to proper length before assembly. No wire shall be doubled back to take up slack. Wires shall be neatly laced into clamps. Cable slack shall be provided to facilitate removal and replacement of assemblies, panels, and modules. (g) Transient Suppression. All DC relays, solenolds, and holding coils shall have diodes across the coils for transient suppression. (h) Power Service Protection. The equipment shall contain readily accessible, manually resettable or replaceable circuit protection devices (such as circuit breakers or fuses) for equipment and power source protection. (i) Fail Safe Provision. The equipment shall be designed such that the failures of the equipment shall not cause the failure of any other unit or equipment. (3) Mechanical Requirements. (a) Enclosure. The camera controller and video switcher/titler shall be rack mounted. The control panel and video monitor shall be a desk top unit and shall be located as shown on the plans. (b) Modular Design. The equipment shall be modular in design such that major portions may be readily replaced in the field. Modules of unlike functions shall be mechanically keyed to prevent insertion into the wrong socket or connector. All modules and assemblies shall be clearly identified with name, model number, serial number, and any other pertinent information required to facilitate equipment maintenance. (c) Connectors and Harness. All external connections shall be made by means of connectors. The connectors shall be keyed to preclude improper hookups. All wires to and from the connectors shall be color coded and/or appropriately marked. Pins and mating connectors shall be plated with a minimum of 25 microns of gold. Video switcher/titler input and output connectors and the video monitor input shall be the BNC type. (4) Environmental Design Requirements. The equipment shall meet all its specified requirements during and after subjecting to any combination of the following conditions. - Ambient temperature range of 32 F to 122 F. - Relative humidity up to 90 percent non-condensing. 4. Construction Methods. The equipment design and construction shall utilize the latest available techniques with a minimum number of 8-9 8371 6-00 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. (1) Electronic Components. All electronic components shall comply with Special Specification, "Electronic Components." (2) Mechanical Components. All external screws, nuts, and locking washers shall be stainless steel; no self-tapping screws shall be used unless specifically 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. (3) Testing, Documentation, and Warranty. Testing of the CCTV Field Equipment shall comply with Article 2.0 of Special Specification, "Testing, Training, Documentation, and Warranty." Documentation for the CCTV Field Equipment shall comply with Article 4.0 of Special Specification, "Testing, Training, Documentation, and Warranty." Warranty for the CCTV Field Equipment shall comply with Article 5.0 of Special Specification, "Testing, Training, Documentation, and Warranty." 5. Measurement. This Item will be measured by the lump sum, for the complete work performed, and material and equipment furnished, installed, made fully operational, and tested in accordance with these Special Specifications. 6. 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 "CCTV Central Equipment." This price shall be full compensation for all equipment described under this Item with all cables and connectors, all documentation and testing, and for furnishing all labor, materials, training, and equipment necessary to complete the work. 9-9 8371 6-00