64 C636M-E (4/05)
CONNECTING A RELAY UNIT
To connect a CM9760-REL to a DX9100 recorder using RS-232 communication:
1. Connect a null modem cable from the relay unit’s RS-232 port to the recorder’s RS-232 port.
2. Set the DIP switches on the relay unit for RS-232 communication. Refer to the CM9760-REL Installation/Operation
manual.
If using RS-422 communication:
1. Connect a cable from the relay unit’s RJ-45 COM IN port to the recorder’s RS-232 port via an RS-232 to
RS-422 converter.
2. Set the DIP switches on the relay unit for RS-422 communication. Refer to the CM9760-REL Installation/Operation
manual.
Figure 77. Connecting a CM9760-REL
CM9760-REL
RECORDER
In
Out
12
In
Out
345678
910
11 12 13 14 15 16
Term
Loop
14
75
HI-Z Term
Loop
912
75
HI-Z Term
Loop
58
75
HI-Z Term
Loop
1316
75
HI-Z
AUDIOINPUTS
15913
261014
371115
481216
Rel AlarmInputs Rel AlarmInputs
112345678Com2910111213141516Com
RS-232 TO RS-422
CONVERTER
NULL
MODEM
CABLE
OR