Section 936—Closed Circuit Television (cctv) 936. 1 General Description



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Section 936—Closed Circuit Television (CCTV)


936.1 General Description

This work includes furnishing and installing closed circuit television (CCTV) system, any specified type, which is a CCTV video surveillance camera, including but not limited to color CCTV cameras, lens, housing, pan/tilt drive, camera system assembly, cabling, mounting hardware, interface panel, camera control receiver, and cabinet wiring. This CCTV system includes both fixed and PTZ cameras as called for in the plans and provides operator control from and video imaging to the Department’s NaviGAtor Advanced Transportation Management System (ATMS), or other camera operating software indicated on the plans or in the contract documents.

Provide all equipment, materials, and work in accordance with all manufacturers’ recommendations, including but not limited to all mounting, wiring and cabling, power supply, surge suppression, and communications equipment and materials. Use only equipment and components that meet the requirements of these minimum specifications and are listed on the Department’s Qualified Products List (QPL).

936.1.01 Definitions

CCTV System, Type B – The Type B PTZ Dome CCTV System uses a self-contained camera system assembly with an analog NTSC video output and RS-232 or RS-485 serial data control interface. This camera is used for, shall be compatible with the legacy NaviGAtor System, and should be used for additions/replacement within existing system segments.

CCTV Camera Type C – The Internet Protocol (IP) PTZ Dome Camera System (IP) camera uses a built in encoder to provide the Moving Picture Experts Group’s MPEG4 part 10 (H.264) video compression technology in accordance with the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) requirements detailed in the ISO/IEC 14496-10:2009 standard. This camera is compatible with the legacy NaviGAtor System, but should be used for new installations in expansion segments.

CCTV Camera Type D – The Internet Protocol (IP) Fixed Camera System uses a built in encoder to provide the Moving Picture Experts Group’s MPEG4 part 10 (H.264) video compression technology in accordance with the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) requirements detailed in the ISO/IEC 14496-10:2009 standard and is for locations where fixed views are desired

CCTV Camera Type H – The Internet Protocol (IP) High Definition Camera System uses a built in encoder to provide the Moving Picture Experts Group’s MPEG4 part 10 (H.264) video compression technology in accordance with the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) requirements detailed in the ISO/IEC 14496-10:2009 standard and is compliant with SMPTE 296M Standard of 1280 x 720 pixel resolution and a 16:9 format. It is compatible with the NaviGAtor System, and provides enhanced features for digital zoom and new format displays (16:9) at viewing stations.

CCTV Camera Type N – The Internet Protocol (IP) PTZ Camera System for Night (low light) viewing may be provided in an outdoor external positioner or dome. Night vision will be provided by thermal imaging.

Video Encoder, Type B – Type B is a standalone, environmentally hardened encoder for a single video signal, suitable for field cabinet use and providing the Moving Picture Experts Group’s MPEG4 part 10 (H.264) video compression technology in accordance with the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) requirements detailed in the ISO/IEC 14496-10:2009 standard.

Video Encoder, Type C –Type C is a high density unit that supports multiple video signals and is suitable for control center use and providing the Moving Picture Experts Group’s MPEG4 part 10 (H.264) video compression technology in accordance with the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) requirements detailed in the ISO/IEC 14496-10:2009 standard.

Video Encoder, Type D – This encoder is a standalone, environmentally hardened encoder for a single video signal, suitable for field cabinet use that is compatible with the existing legacy encoder and decoder video systems and otherwise would not meet Type B requirements.

Video Encoder, Type E – This encoder is a high density encoder card unit for multiple video signals, with one encoder per video signal, suitable for control center use with the existing legacy encoder and decoder video systems and otherwise would not meet Type B requirements.

Video Encoder, Chassis Type E –This chassis is a high density mount unit that supports multiple Video Encoder Type C or Video Decoder Type C cards suitable for control center use with the existing legacy encoder and decoder video systems.


936.1.02 Related References

A. Standard Specifications

Section 639 – Strain Poles for Overhead Sign and Signal Assemblies

Section 680Highway Lighting

Section 682 – Electrical Wire, Cable and Conduit

Section 922 – Electrical Wire and Cable

Section 923 – Electrical Conduit

Section 925 – Traffic Signal Equipment

Section 939 – Communication and Electronic Equipment



B. Referenced Documents

American National Standards Institute (ANSI)

American Society of Testing and Materials (ASTM)

Electronic Industries Association (EIA)

FCC Rules Part 15, Sub-part J

Insulated Cable Engineers Association (ICEA)

International Electrotechnical Commission (IEC) ISO/IEC 14496-10:2009

International Municipal Signal Association (IMSA)

MIL-HDBK-454A

MIL-STD-810F(3) Method 509 Procedure 1 – exterior salt atmospheres

National Electric Code (NEC)

National Electrical Manufacturers Association (NEMA)

NEMA-4

Underwriter’s Laboratory Incorporated (UL)



National Television Standards Committee (NTSC)

936.1.03 Submittals

This subsection and the following chart provide the Contractor with an outline of the submittal requirements for the equipment and components for all pay items in this Section 936. This chart is to be used as a guide and does not relieve the Contractor from submitting additional information to form a complete submittal package.

Submit test procedures required for this items within sixty (60) calendar days after the Notice to Proceed and prior to any installation, unless noted otherwise in the Contract Documents.

Submit to the Engineer for approval, two (2) printed and one (1) electronic copy of service and maintenance documentation for all equipment, components and all other materials required within these specifications.

Provide submittal data that is neat, legible, and orderly. Neatly organize each package of submittal data and separate by hardware item. Use the “Materials Certification Package Index and Transmittal Form”, contained in Section 105.02 of the Special Provisions, for each pay item to document and list all material and components that are included in the submittal package. Any submittal data submitted without the Index/Transmittal form or that is incomplete will be rejected.

Products appearing on the Qualified Products List (QPL) are exempt from normal submittal requirements. These products have been evaluated by the Office of Traffic Operations and have proven their capability of meeting the appropriate Georgia Department of Transportation Specification. Any of these products may be used without submitting catalogue cuts, sampling or pre-testing. The Contractor shall submit a letter to the Engineer, stating which QPL items they will use. The Engineer and/or department designee must ascertain that the construction item is the same material identified on the appropriate QPL and will acknowledge receipt of these items in the project diary or as required by the Construction manual.

A. CCTV System; CCTV System, Retrofit Assembly; CCTV System, Retrofit Assembly (Furnish Only)

1. Camera System Assembly

Submit complete physical, performance, and operational materials submittal data for the camera system assembly and all associated components.

2. Camera System Assembly Mount

Submit complete physical, performance, and operational materials submittal data for the camera system assembly mount and all associated components and hardware.

3. Cabinet Interface Assembly

Submit complete physical, performance, and operational materials submittal data for the cabinet interface assembly and all associated components and hardware. Submit complete physical, performance and operational materials, submittal data for all cables, wire and connectors required for a complete and operational CCTV system. Submit cables and connectors as specified here and as recommended by the CCTV system manufacturer.

4. Submittal Review Demonstration Test Set

Submit demonstration test set(s) for Department evaluation after the Engineer approves the submittal materials for the equipment and materials listed below. The demonstration test sets shall be connected to and operated through the NaviGAtor system by the Engineer. Deliver the test set to the Department at the location specified by the Engineer. Request a delivery and test time a minimum of 30 days in advance. For projects with multiple camera installations, provide demonstration test sets of the materials, types and quantities as shown below:

a. CCTV System (quantity 2)

b. CCTV System, Retrofit Assembly (quantity 2)

A demonstration test set shall include all materials, components, assemblies, control software an documentation of a CCTV system and shall be a complete, fully functional CCTV system.


B. Acceptance Testing

Submit acceptance test procedures and a desired acceptance test schedule.



C. Warranties and Guarantees

Submit materials submittal data providing complete example documentation on all manufacturers’ warranties or guarantees on all CCTV system equipment and hardware components furnished, as required in Subsection 936.3.07.



D. Training

Prior to training, submit resume and references of instructor(s). Obtain approval from the Engineer that the instructor is qualified in his/her respective field. Submit the Training Plan within 120 days of the Notice to Proceed. Include in the training plan an outline of the training course. Obtain approval of the Training Plan from the Engineer. The Training Plan shall explain in detail the contents of the course and the time schedule of when the training shall be given. Coordinate actual training with installation schedules as approved by the Engineer.



936.2 Materials

936.2.01 CCTV Systems

Camera types are as specified on the plans, and may vary by location within project limits. Ensure that the individual components and assemblies of the CCTV System conform to the requirements specified in the following sections. Ensure that all equipment, materials, components and assemblies of the CCTV System conform to the CCTV manufacturer’s requirements and recommendations.


A. Camera System Assembly

Follow these minimum requirements for a camera system assembly including the camera, dome assembly, lens, pan/tilt drive, and control electronics.

1. For dome enclosure cameras (Types B, C, and H)

a. Provide a downward-looking circular dome-shaped enclosure assembly. The enclosure shall have a maximum diameter of 14 in (356 mm) at its widest point and a maximum height of 22 in (559 mm) from the top of the housing assembly to the bottom point of the dome. The upper housing shall be constructed of a non-metallic UV-stabilized material of a light color, or constructed of an aluminum material with a heat-cured paint coating of an equivalent color. The lower housing shall be constructed of a UV-stabilized optically-correct acrylic material. The maximum weight of the complete and fully functional camera system assembly, including the camera, lens, pan/tilt drive, control electronics, environmental control components, housing assembly, and hub adapter shall be 25 lbs (11.4 kg).

b. Use an enclosure assembly that secures to the mounting bracket arm with a 1-1/2 in (37.5 mm) threaded pipe nipple. Hub adapters for the threaded pipe nipple on either the enclosure or the mounting arm, or both, are permitted.

c. All fastening and mounting hardware on or within the enclosure assembly shall be stainless steel.

d. Use a pressurized enclosure assembly that uses extra dry nitrogen. Provide a pressure relief valve and a Schrader valve for filling and evacuating the enclosure. The enclosure should have an operating pressure range of 3-7 psi (21-48 kPa).

e. When an enclosure assembly requires a heater and a circulating blower fan for environmental (temperature and defogging) control, maximum electrical load for the heater shall be no more than 85 VA.

f. Ensure that the CCTV camera system performs all required functions during and after being subjected to an ambient operating temperature range of -30º to 165º F (-34° to 74° C) as defined in the environmental requirements section of the NEMA TS 2 standard. Verify that the CCTV camera manufacturer certifies its device has successfully completed environmental testing as defined in the environmental requirements section of the NEMA TS 2 standard.

g. Ensure that the housing protects the camera and other internal components from rain, dust, corrosive elements, and typical conditions found at a roadside environment. Ensure that the CCTV camera, mounting hardware, and any other camera-related material that is exposed to the environment can withstand 90 mph (145 kph) wind speeds.

h. Electrical power for the complete camera system assembly shall be per the manufacturer’s recommendations and between 12V to 120V DC or single-phase AC utilizing a two-wire (not counting ground) supply from the cabinet interface assembly in the equipment cabinet. Do not use a dual-voltage power supply. Maximum electrical load with all subsystems operational, including the heater, shall be no more than 130 VA.

i. For analog cameras (Type B), ensure that the camera produces an analog NTSC-compliant composite video output with a signal-to-noise ratio of 45dB or greater.

j. Use a camera unit with an integrated camera sensor and zoom lens assembly. The camera shall use a CCD image sensor, with a minimum of 768 horizontal by 492 vertical active picture elements. The camera shall have a minimum resolution of 460 horizontal TV lines by 350 vertical TV lines.

k. The camera shall include on/off selectable automatic gain control and manual/automatic selectable white balance. The camera shall include an electronic shutter mode with user-selectable speeds of a minimum range from 1/60 second to 1/10,000 second. The camera unit shall provide an on/off selectable day/night function where the image sensing and output automatically switch between color and black-and-white imaging; fixed color or black-and-white imaging shall be user-controllable. The camera sensitivity shall be no less than 3.0 lux in color mode (1/60 second) and 0.5 lux in black-and-white mode (1/60 second, IR cut removed).

l. Provide a camera unit with an integrated zoom lens of a minimum of 22X optical zoom and a minimum of 4X (HD Camera Type D shall have a minimum of 12X) digital zoom. The camera shall not employ any digital zoom functionality unless the lens is at the full limit of optical zoom and the zoom command continues to be applied, in which case the camera unit shall automatically switch from optical to digital zoom. The camera unit shall include on/off selectable automatic focus and manual/automatic selectable iris control.

m. Use a pan/tilt drive for the camera unit that is fully-contained within the enclosure assembly. The drive shall be capable of 360 degree panning and at least 0 degree horizontal to 90 degree vertical looking downward tilting. The camera unit and pan/tilt drive shall provide automatic 180-degree image output flip at the bottom of the tilt travel. The camera unit and pan/tilt drive shall provide a minimum of eight privacy blackout zones, each zone being individually programmable to be on/off by the user. The panning speed, when a pan-left or pan-right command is applied by the user, shall be between 10 and 18 degrees per second. The tilting speed, when a tilt-up or tilt-down command is applied by the user, shall be between 4 and 10 degrees per second.

n. Provide a system control interface to the camera system assembly that physically and logically supplies the user commands to and monitoring from the camera system assembly, including but not limited to pan, tilt, zoom, focus, position reporting, and configuration. The system control interface shall physically connect the camera system assembly to the cabinet interface. Provide a system control interface that is in compliance with all of the physical and operational requirements specified for a CCTV System. Provide the capability to set the communications through the system control interface or through the user control interface in the cabinet; do not require the opening/disassembly of the camera system enclosure to set the communications address. Store all user configurable settings in non-volatile memory that is retained indefinitely upon loss of power.

2. Camera Type D – Fixed Camera. Fixed cameras shall be designed for outdoor applications meeting NEMA 4X or IP-66 rating requirements and include all necessary harness and cables to extend the video, power and data from the CCTV Camera location to the field cabinet. The enclosure shall be suitable for the location and meet all requirements as denoted above for other camera types. The lens shall have a minimum F-stop of 1.4 with a variable manual zoom of 5 – 50 mm. The iris shall support automatic or set to yield optical results under various outdoor lighting conditions. The camera shall provide all other functionality as required of other types to produce a fixed view of the roadway.

3. IP Cameras (Types Cand D) shall provide the same functionality as the analog camera unit, and shall include built in integral encoders.(i.e., Ethernet ready). In addition, IP cameras shall meet the following minimum requirements:

a. Power over Ethernet (IEEE802.3af) or 24 VAC power input.

b. The integral video encoder in the dome assembly shall meet the exact same requirements for Video Encoder Type B, except that mounting/packaging, cable connectors, and power supply requirements shall be according to the camera manufacturer requirements. A serial console interface to the integral encoder is not required.

c.


4. High Definition Cameras (Type H) shall provide the same functionality as other IP (built in encoders) camera types, and in addition, shall meet the following minimum requirements:

a. HD 1080p resolution at 30 images per second (ips)

b. Minimum 12x digital zoom.

c. 16:9 aspect ratio

d. Digital image stabilization

5. CCTV Camera Type N – Internet Protocol (IP) PTZ Camera System for Night (low light) viewing shall provide video surveillance imaging for reliable video images clearly in near total darkness. Images shall be provided in 640 X 480 resolution with dual output stream digital video in H.264, MPEG-4, or M-JPEG formats.


936.2.02 Camera System Assembly Mount

Provide a camera system assembly mount that includes a mounting bracket arm, camera enclosure mount and disconnect, mounting straps, and incidental fastening hardware. All fastening and mounting hardware shall be stainless steel.

The mounting bracket arm shall be suitable for pole-mounted applications using mounting straps or bolts. The bracket shall be fabricated to exactly mate with the camera enclosure mount/disconnect/pipe nipple and any needed pole-mount adapter with no drilling or welding required. The bracket shall be fabricated from aluminum alloy with an exterior polyurethane coating, stainless steel, or mild steel with a heat-cured paint coating. All bracket coatings shall be light in color and corrosion resistant in accordance with MIL-STD-810F (3) Method 509 Procedure 1 for exterior salt atmospheres.

Unless otherwise indicated on the plans, use a mounting bracket arm that locates the vertical centerline of the camera enclosure from 14 in (356 mm) to 24 in (610 mm) from the exterior surface of the support pole. The mounting bracket arm shall provide for cable entrance through the base of the bracket directly from the support pole and from the exterior through a rain tight opening on the underside of the bracket and adjacent to the support pole. The bracket arm shall provide sufficient opening to fully enclose the cables. Provide non-metallic cable protection grommets for both cable entrances. Unless otherwise shown in the Plans, mount the bracket arm to the support pole using a minimum of two ½ in (12.5 mm) or greater stainless steel mounting straps.


936.2.03 Camera Lowering System Assembly Mount

Where specified on the plans, provide a camera lowering system that includes a mounting bracket arm, self aligning docking system, video and power surge protection. The unit will be self contained, suitable for pole-mounted applications using straps or bolts. All fastening and mounting hardware shall be stainless steel. The lowering cable(s) shall be stainless steel. All bracket coatings shall be light in color and corrosion resistant in accordance with MIL-STD-810F (3) Method 509 Procedure 1 for exterior salt atmospheres. The lowering device shall have a support capacity of 55 lbs. (25 Kg.), and shall provide for camera systems at varying heights above ground level to match the height of the mounting structure. Electrical power for the complete camera lowering system assembly shall be per the manufacturer’s recommendations and 120 VAC.



936.2.04 Cabinet Interface Assembly

Use a cabinet interface assembly that provides electrical service for the camera system assembly and provides the user control interface connection to the NaviGAtor system and/or user personnel. Install the cabinet interface assembly in the equipment cabinet. All fastening and mounting hardware shall be stainless steel. The cabinet interface panel assembly includes the following:



  • CCTV Interface Enclosure

  • Camera System Assembly Power Supply with surge suppression

  • Terminal blocks and video cable surge suppression for camera system assembly cabling

  • User control interface to the NaviGAtor system and/or user personnel with surge suppression

The NaviGAtor Standard CCTV Control Protocol (hereinafter called the “CCTV Standard Protocol”) is specified below and shall connect to the user control interface unit through an RS-232 serial data interface directly from the NaviGAtor system. Provide the control software with an unrestricted, non-cancelable user license for the Department’s use with any NaviGAtor equipment at any location. Furnish three (3) copies each of the software, license, appropriate RS-232 cable, and user documentation per project.


A. CCTV Standard Protocol

1. General

For all camera types, use the NaviGAtor Standard CCTV Control Protocol (hereinafter called the “CCTV standard protocol” or “standard protocol”) for CCTV system control communications between the camera unit and the GDOT NaviGAtor central system to achieve a fully functional communications interface to utilize all of the capabilities and functions of the camera. Implement the standard protocol for all CCTV equipment installed on this project. The CCTV standard protocol governs all control communications between the NaviGAtor central system (hereinafter called the “host”) and the CCTV system.

2. Interface

For Type B cameras, the CCTV System (hereinafter called the “remote”) shall communicate using the CCTV standard protocol over an RS-232 serial interface. Data is transmitted using 1 start bit, 8 data bits, and 1 stop bit (no parity) at a baud rate of 9600.

Each remote shall be identified by a unique integer address between 1 and 233. This address is set during installation and shall not be altered using the standard protocol. The address is included in messages to identify the intended recipient of commands from the host and responses from the remote.




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