Vicon VN-301T, Руководство по установке и эксплуатации

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XX159-07-00 Rev 1010 VN-301T Single-Channel Digital Video Server Chapter 3 - Installation
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To connect a PTZ camera control to the VN-301T:
There are two types of installation configurations, daisy-chain or star, depending on the needs of the system.
A daisy-chain loops signals from one unit to the next. There can be a maximum of up to 5000 ft (1524 m) from
the server to the last dome/PTZ in the chain. A star configuration provides multiple communication paths. By
fanning out communications, system reliability increases; a failure on one leg of a star has no affect on the
other units. A star configuration requires the use of a Distribution Line Control, such as Vicon’s V1400X-IDL.
Both types of configurations can be used within a system.
3. Using a twisted-pair cable as defined in the section Twisted-Pair Cable Recommendations , prepare a
4-conductor twisted-pair type cable by stripping the ends back for use.
4. Connect the PTZ wires to the RS-485/422 Terminal Block (TX+ and TX-), refer to Figure 3-2. Ensure that
you connect the wires to the correct polarity. Connect these to the SurveyorVFT dome COMM TB3
terminal block COMM IN+ and COMM IN-, respectively.
Figure 3-2: PTZ Camera Control
5. Install the other end of this cable into the dome camera or receiver it will communicate with.
To connect an alarm sensor to the VN-301T:
6. Locate the sensor cable near the server. These two wires will be connected to the SENSOR and
GROUND terminal block connections (refer to Figure 3-4).
7. Connect one sensor wire to the SENSOR connection on the terminal block.
8. Connect the other sensor wire to the GROUND connection.
9. Connect the other end of this cable to the appropriate sensor output (N.O. or N.C. dry contact).
10. When using a sensor, a resistor should be connected as follows (refer to Figure 3-3):
a. Normally Open Sensor: The resistor should be connected to the SENSOR and GROUND screws.
b. Normally Closed Sensor: The resistor should be soldered between the SENSOR screw and the
incoming sensor wire.