CohuHD Costar RISE 4220HD, Руководство по установке

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Wiring to the PoE pins is the same for the NIC in a PC as for system connections to a hub, switch,
router or similar device.
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For Power : Two wires, insulated for 300 V minimum, 18 AWG cord for power. Use for distances up to
80 feet (29 m) for 24 Vac cables.
Note: Long cable lengths and/or low mains voltages can cause the 24 Vac power at the camera to
drop below the minimum input voltage (24 Vac -10%) resulting in unreliable operation. In this sit-
uation, use the 28 Vac output tap on the 7411543-010 AC Outdoor Power Transformer to ensure
adequate power to the camera.
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For I/O : Four wires, insulated for 300 V minimum, 24 AWG. Use for distances up to 250 feet (76.2 m).
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For Analog Video : The coax cable for analog video must be rated at 75 ohms, and must not exceed a
maximum attenuation of 6 dB at 10 MHz for the length of cable required. For example, Belden 9221
miniature coax is a small, extremely flexible, 75 ohm coax that has an attenuation of 2.2 dB per 100
feet. Do not use it for distances longer than 270 feet ((6 dB / 2.2 dB) x 100 ft. = 272 feet). For mid range
distances use the Belden 8241F (RG-59/U type with 100% copper core), with an attenuation of 0.9 dB
per 100 feet, or a maximum recommended distance of 650 feet. For longer cable runs, the Belden 8238
(RG-11/U type) has an attenuation of 0.7 dB per 100 feet, which would allow for a maximum cable
length of over 850 feet. There are triaxial cables available that can accommodate even longer cable dis-
tances, but a video cable equalizer or fiber optics may prove to be more cost-effective as a long dis-
tance solution.
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For Data : A shielded two twisted pair data cable is recommended. For lower baud rates (9,600 or less),
the Belden 8723 shielded cable is usually suitable for distances up to 750 feet. For longer cable runs,
and/or faster baud rates, a cable with a lower capacitance per foot must be selected.
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If the RS422 interface is used for sending and receiving serial data, an RS232/422 converter is used
between the camera system and a computer.
Typical RS232/422 Converter
RS422 Cable Wiring to B&B Converter
Camera Side Converter Side
RS422 Camera Camera Connector Pins RS422 Device
RS422 RX+ M TD(B)
RS422 RX- N TD(A)
RS422 TX+ S RD(B)
RS422 TX- R RD(A)
3.4.4 4220HD CohuHD-Manufactured System Cables
CohuHD-manufactured cables are available for 4220HD series camera systems:
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CA280 for PoE++
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CA279 for 24 Vac
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CA276A Cat5e for 4221HD model.