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C603M-A (11/07) 19
CONNECTING A PTZ DEVICE, RELAY, AND ALARMS
The NET5301T-I incorporates a 16-pin terminal block to support the following:
• PTZ device, such as a dome camera, using the Pelco P or Pelco D protocol (RS-422)
• Relay control, either normally open or normally closed
• Up to three alarm inputs, supervised or unsupervised, using any combination of high and low signals
The terminal block has tension clamps instead of screw terminals. Use a small screwdriver to open the clamp for a particular lead. Figure 14
shows how to wire the terminal block and connect it to the NET5301T-I.
NOTE: The terminal block is keyed. It attaches only one way to the video encoder.
Figure 14. NET5301T-I Terminal Block
Table B identifies the pin assignments for the terminal block. An arrow on the rear panel identifies pin 1; on the terminal block, pin 1 is the
left-most lead on the top row (refer to Figure 14).
Table B. PTZ, Relay, and Alarm Pin Assignments
Top Row Bottom Row
Pin Label Lead Pin Label Lead
1 TX- RS-422 Data TX- 9 TX+ RS-422 Data TX+
2 RX- RS-422 Data RX- 10 RX+ RS-422 Data RX+
3 Ground 11 NC Relay Normally Closed
4 C Relay Common 12 NO Relay Normally Open
5 RX Reserved 13 TX Reserved
6A
1 Alarm 1 14 Ground
7A
2 Alarm 2 15 Ground
8A
3 Alarm 3 16 Ground
PIN 9
PIN 16
PIN 1
PIN 1