14 C613M-A (5/05)
CONNECTING A PTZ DEVICE, RELAY, AND ALARMS
The SP04-140 incorporates a 16-pin terminal block to support the following:
PTZ device, such as a dome camera, using the 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 11
shows how to wire the terminal block and connect it to the SP04-140.
NOTE:
The terminal block is keyed. It attaches only one way to the video encoder.
Figure 11.
SP04-140 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
leftmost lead on the top row (refer to Figure 11).
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
4CRelay Common 12 NO Relay Normally Open
5 Ground 13 Ground
6A
1
Alarm 1 14 Ground
7A
2
Alarm 2 15 Ground
8A
3
Alarm 3 16 Ground
PIN 1 PIN 1
PIN 9 PIN 16