Pelco DX9100 Manuel d'utilisateur Page 58

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58 C636M-E (4/05)
CONNECTING AN ALARM UNIT
You can connect a maximum of four alarm units to a recorder.
To connect a CM9760-ALM to a DX9100 recorder using RS-232 communication:
1. Connect a null modem cable from the alarm unit’s RS-232 port to the recorder’s RS-232 port.
2. Set the DIP switches on the alarm unit for RS-232 communication. Refer to the CM9760-ALM Installation/Operation
manual.
If using RS-422 communication:
1. Connect a cable from the alarm 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 alarm unit for RS-422 communication. Refer to the CM9760-ALM Installation/Operation manual.
Figure 69. Connecting a CM9760-ALM
RECORDER
RS-232 TO RS-422
CONVERTER
CM9760-ALM
NULL
MODEM
CABLE
In
Ou t
12
In
Ou t
3
45678
910
11
12 13 14 15 16
Term
Loop
14
75
HI-Z
Term
Loop
912
75
HI-Z
Te r m
Loop
58
75
HI-Z
Te r m
Loop
13 16
75
HI-Z
AUDIO IN PUTS
15 913
26 1014
37 1115
48 1216
Re l A l a r m I n p u t s Re l Al ar m In p u t s
112345678Co m
2
910111213141516 Com
OR
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