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Pelco Universal Keyboard KBD300A User Manual

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Pelco Manual C527M-L (3/04)         
[ 23 ]
PIN 1
PIN 8
COM PORTS 1, 2
RS-232
PIN 1
PIN 8
COM PORT 3
M, RS-485  
PIN 1
PIN 8
COM PORT 4
RS-485
PIN 1
PIN 8
COM PORTS 5, 6
RS-485
1-----Rx
2-----NC
3-----NC
4
5-----GROUND
6
7
8-----Tx
-----NC
-----NC
-----NC
1-----MRx+
2-----MRx-
3
4
5-----GROUND
6-----NC
7-----MTx-
8-----MTx+
-----NC
-----NC
1-----Rx+
2-----Rx-
3
4
5-----GROUND
6-----NC
7-----Tx-
8-----Tx+
-----NC
-----NC
PIN 1
PIN 8
COM PORTS 7, 8
RS-485 (PROGRAMMABLE
TO RS-232)
RS-232 FUNCTION
RS-485 FUNCTION
1-----Rx+
2-----Rx-
3
4
5-----GROUND
6-----NC
7-----Tx-
8-----Tx+
-----KBD 12V
-----KBD GROUND
1-----Rx+
2-----Rx-
3
4
5-----GROUND
6-----NC
7-----Tx-
8-----Tx+
-----NC
-----NC
1-----Rx
2
3
4
5-----GROUND
6-----NC
7-----NC
8-----Tx
-----NC
-----NC
-----NC
NC = NO CONNECTION
01232
Figure 9.  COM Port Connections and RJ-45 Connector Pin-Outs