1993 Specifications
CSJ’s 0002-03-017, etc.,
0167-01-089, etc., & 0924-06-147, etc.
SPECIAL SPECIFICATION
8929
CCTV Field Equipment
1.
Description. This Item shall govern for the furnishing and installation of Closed Circuit
Television (CCTV) field equipment as specified for each camera site in designated
locations, shown on the plans and as detailed in this Special Specification.
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 in the specifications.
The CCTV field equipment shall include, but not be limited to, the following:
1. Digital Signal Processing (DSP) Color video camera units.
2. Camera housings.
3. Nitrogen bottle with required equipment for servicing/recharging the camera
housing.
4. Medium duty pan and tilt units.
5. Camera control receivers.
6. Video and camera control and power cable harnesses, connectors and coax.
7. Preset positioning.
(2) Functional Requirements. The CCTV cameras shall have 525 lines per frame,
interlaced 2:1, per EIA-170A Standard. Color lock shall be provided and no interlace,
jitter or line pairing on the viewing monitor shall be discernible. The frame frequency
shall be 30 frames per second. The width to height aspect ratio shall be 4:3. The
system limiting resolution shall conform to FCC regulations for broadcast signals. The
system shall be capable of providing clear, low-bloom and low-lag video pictures under
all conditions from bright sunlight to nighttime scene illumination of 1.3 foot-candles
(fc). Color quality shall be maintained by a continuous through the lens automatic
white balance for color temperatures from 2,850 K to greater than 5,100 K with less
than 10 IRE units unbalance.
Unless otherwise shown on the plans, all field equipment installed shall be operational
in all weather conditions and shall be able to withstand a wind load of 80 mph without
permanent damage to mechanical and electrical equipment.
1-8
8929
09-02
Equipment used shall be identical at each field location and shall be completely
interchangeable.
(3) Electrical and Mechanical Requirements.
(a) Video Camera Unit. All color video cameras shall be of solid state design, and
shall meet the following requirements:
1. Image pickup device: 1/4 inch single interline transfer micro-lens CCD with
mosaic type color compensating filter.
2. Optical Zoom Range: 22X, 3.9 millimeters to 85.6 millimeters.
3. Digital Zoom Range: 1X (Off) through 8X.
4. Pickup device blemishes: When viewing a uniform white field, there shall be no
blemishes for any iris opening producing any signal level between 7.5 and 100 IRE.
5. Sensitivity: The camera shall maintain full p-p video with 1.3 fc., 3,200 degrees
K incandescent illumination on the image device face plate with AGC off.
6. Resolution: > 350 lines vertical and > 460 lines horizontal, measured per EIA170A Standard.
7. Over exposure protection: The camera shall not sustain any permanent damage
when pointed directly at strong light sources, including the sun.
8. Sync generator: EIA-170A Standard (NTSC Standard) with internal type
crystal.
9. Encoded NTSC video signal format: EIA-170A Standard, video output 1 Volt
p-p composite. Shall have 0 to 16 dB AGC (Peak average adjustable) and Gamma
of 0.45
10. Output impedance: 75 Ohms plus or minus 5 percent.
11. Aspect ratio: 4:3.
12. Geometric Distortion: Zero.
13. Signal to noise ratio (AGC off): 56 dB minimum (weighted at 4.5 Mhz).
14. Images shall have a minimum of 768 (H) x 494 (V) pixels.
15. Automatic light compensation: The video output shall not change more than
2:1 with light level change of 4,000,000:1 when using the specified zoom lens with
auto iris.
16. Electronic Shutter: Remotely selectable, 1/60 second to 1/10000 second (8
steps).
17. Long Term Integration Range: Provides automatic and manual selection of
integration duration for enhanced sensitivity. Integration times are 1/4 second, 1/8
2-8
8929
09-02
second, 1/15 second, 1/30 second. Internal video buffer provides continuous video
output, updated at the integration rate.
18. Automatic Iris: Iris automatically adjusts to compensate for changes in scene
illumination to maintain constant video level output within sensitivity
specifications.
19. Focus: The camera shall be capable of both manual and automatic focus.
20. Programmable ID Generator: The camera shall contain a programmable
source ID generator to insert camera ID over each of the camera generated videos.
ID characters must be white with a black border. A list of proposed camera
identification text shall be submitted to the Engineer for approval. All ID functions
may be controlled remotely.
(b) Camera Housing. The Contractor shall furnish and install an environmental
resistant and tamperproof pressurized housing with five pounds psi dry Nitrogen
with Schraeder purge fitting and 20 psi relief valve for each camera.
The camera housing shall be either of the same manufacturer as the camera or
designed specifically for the camera being supplied.
The Contractor shall furnish a Nitrogen bottle, charging gauges and equipment
required to service/recharge this housing.
Except for the viewing window, the enclosure shall be constructed of anodized
aluminum of at least 0.25 inch thickness.
The viewing window shall be constructed in such a way that unrestricted camera
views can be obtained at all camera and lens positions.
A sun shield shall be provided to shield the entire housing from direct sunlight. It
shall be constructed in such a way as to allow the free passage of air between the
housing and the shield, but shall not form a "sail" to place an excessive load on the
pan/tilt unit in high winds.
Cables and harness shall enter at the rear of the housing, with gaskets at entry
points to prevent moisture entry. The cable shall have a right angle connector in
the six o'clock position.
Camera housing shall have lightening protection as shown on the plans.
(c) Pan/Tilt Unit. The Contractor shall furnish and install a medium duty, anodized
aluminum weatherproof pan/tilt unit at each camera site on top of the camera pole.
The Contractor shall be responsible for providing any mounting adapter and/or
attachment required to install the pan/tilt unit. The mounting shall be designed for
the camera housing and the pan/tilt unit to withstand the wind loading specified in
Subarticle 2(2).
The unit shall provide vertical movement (tilt) of plus 40 degrees or minus 90
degrees and horizontal movement (pan) of 360 degrees. Manually controlled tilt
3-8
8929
09-02
speed shall be variable ranging up to 20 degrees per second, and manually
controlled pan speed shall be variable ranging up to 40 degrees per second. When
preset positioning is used, the pan speed shall be 100 degrees per second. The unit
shall be capable of simultaneous pan/tilt movements.
The unit shall have a load rating compatible with that of the camera housing,
camera and all cabling under wind conditions specified in Subarticle 2(2) and
acceleration/deceleration conditions specified. The Contractor shall provide
analyses of the loading on the pan/tilt assembly based on the above criteria.
Drive motors shall be capable of instantaneous reversing and shall have overload
protections.
Braking shall be provided in both pan and tilt movements to enable fast stop and
reversal and to prevent drifting.
All pan/tilt unit control and power cables will be run internal to the unit. The only
external cable permitted shall be the connection from the pan/tilt unit to the camera
housing.
Limit switches or stops shall be provided to limit the range of vertical movements
and which shall be adjustable individually. The field of view of each camera and
the limit settings of its vertical movements will be provided by the Engineer prior
to installation.
The pan/tilt unit shall have seals and gaskets to protect the motors, gears, and
cables. Seals and gaskets shall be resistant to ozone, ultraviolet radiation, and other
pollutants inherent to all local environmental conditions.
Preset position feedback shall be included as a feature.
(d) Camera Control Receiver. The camera control receiver shall receive the
command data from the camera controller and decode the digital command data
signals transmitted through the communication transmission interface, perform
error checking and act on valid data to drive the pan/tilt unit and the camera
controls. The camera control receiver shall be fully compatible with the existing
control protocol currently in use.
The camera control receiver shall meet the following specific requirements for
remote and local control without use of a laptop:
1. Camera remote/local control functions: The unit shall provide, as a minimum,
control and drive circuits for the following functions:
Pan Left
Pan Right
Tilt Up
Tilt Down
4-8
8929
09-02
Zoom In
Zoom Out
Focus Near
Focus Far
Auto Iris
Manual Iris Open
Manual Iris Close
Pan/Tilt Position Preset (minimum of 24)
Zoom and Focus Position Preset (minimum of 24)
2. Controller Address: Each unit shall have a unique one-in-255 address which is
set by changing connector harness, switch settings or plug-in modules. The camera
addresses shall be assigned by the Engineer. The unit shall respond to the central
command if and only if it is addressed.
3. Power Supplies: All power supplies required to operate the camera, pan/tilt and
lens movements shall be included with the control receiver.
4. Communications interface: The camera control receiver shall interface to the
communications backbone through an EIA-232C/D port. Communications signals,
data exchange protocol and timing shall be compatible with the communications
equipment and with the existing camera control equipment in the TMC. Complete
hardware interface and protocol description shall be supplied to the Department as
part of the required documentation. The line drivers and receivers shall be an
integral part of the camera control receiver.
5. Packaging: The camera control receiver shall be contained with the camera
and/or pant/tilt unit housings.
6. Connectors: Waterproof connectors shall be provided and installed which are
compatible with the communications equipment interface. Connectors shall be
used for connections at the control unit and at the camera, lens and pan/tilt
mechanisms. All connector pins and mating connectors shall be corrosion resistant.
(e) Surge Protection. The camera installation shall meet the following requirements:
1. Pole mounting adapter -- Electrically bonded to pole.
2. Pan/tilt mechanism -- Electrically bonded to adapter.
3. Camera ground strap -- No. 6 AWG braided conductor to connect enclosure to
pole mounting adapter.
(i) Power and Control Cable Surge Protector. Each power conductor and
each control conductor (including return conductors) shall be protected by the
5-8
8929
09-02
appropriate surge protector per NEC requirements. All the protective devices
shall be housed in each of the surveillance cabinet.
(f) Power Requirements. The CCTV field equipment shall meet all of its specified
requirements when the input power is 115 volts AC ±10%, 60 ±3 Hz. The
maximum power required shall not exceed 350 watts.
(g) Primary Input Power Interruption. The CCTV field equipment shall meet all
the requirements in Section 2.1.4, "Power Interruption", of the National Electrical
Manufacturers Association (NEMA) Standard TS1 for Traffic Control System.
(h) Power Service Transients. The CCTV field equipment shall meet the
requirements of Section 2.1.6, "Transients, Power Service", of the NEMA Standard
TS1.
(i) 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 cable with nylon lacing or plastic
straps. Cables shall be secured with clamps. Service loops shall be provided at all
connections.
Coaxial cable between the camera and the communications equipment interface
shall be of the RG-59 type with a stranded center conductor and 100 percent shield
coverage. All coaxial cable shall have a cellular polyethylene dielectric.
(j) Transient Suppression. All DC relays, solenoids and holding coils shall have
diodes or other protective devices across the coils for transient suppression.
(k) 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.
Circuit breakers or fuses shall be provided and sized per NEC requirements, such
that no wire, component, connector, PC board or assembly shall be subjected to
sustained current in excess of their respective design limits upon the failure of any
single circuit element or wiring.
(l) Fail Safe Provision. The equipment shall be designed such that the failures of the
equipment shall not cause the failure of any other unit of equipment.
(m) Modular Design. The CCTV field equipment shall be modular in design to allow
major portions to be readily replaced in the field.
Modules and assemblies shall be clearly identified with name, model number, serial
number and any other pertinent information required to facilitate equipment
maintenance.
(n) Connectors and Harnesses. 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.
6-8
8929
09-02
Connecting harnesses of appropriate length and terminated with matching
connectors shall be provided for interconnection with the communications system
equipment.
All pins and mating connectors shall be corrosion resistant. Connectors utilizing
solder type connections shall have each soldered connection covered by a piece of
heat shrink tubing securely shrunk to insure that it protects the connection.
(4) Environmental Design Requirements. The equipment shall meet all its specified
requirements during and after subjecting to any combination of the following
conditions:
1. Ambient temperature range of 0°F to 140°F.
2. Temperature shock not to exceed 30°F per hour, during which the relative humidity
shall not exceed 95 percent.
3. Relative humidity range not to exceed 95% over the temperature range of 40°F to
110ºF.
4. Moisture condensation on all surfaces caused by temperature changes.
3.
Construction Methods.
(1) General. The equipment 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.
(2) Electronic Components. All electronic components shall comply with Special
Specification, "Electronic Components".
(3) 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.
4.
Documentation Requirements. The documentation requirements shall be in accordance
with Special Specification, "Testing, Training, Documentation, Final Acceptance and
Warranty", Article 4.
5.
Testing. The testing shall be in accordance with Special Specification, "Testing, Training,
Documentation, Final Acceptance and Warranty", Article 2.
7-8
8929
09-02
6.
Training. The training shall be in accordance with Special Specification, "Testing,
Training, Documentation, Final Acceptance and Warranty", Article 3.
7.
Warranty. The warranty shall be in accordance with Special Specification, "Testing,
Training, Documentation, Final Acceptance and Warranty", Article 6.
8.
Measurement. This Item will be measured as each unit furnished, installed, made fully
functional and tested in accordance with these Special Specifications.
9.
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
Field Equipment". This price will include all equipment described under this Item with all
cables and connectors; all documentation and testing and shall also include the cost of
furnishing all labor, materials, warranty, training and equipment necessary to complete the
work.
8-8
8929
09-02