Pelco C636M-F manual Connecting An Alarm Unit

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.

RECORDER

	1	4	9	12	5	8	13	16
Term		75	Term	75	Te rm	75	Te rm	75
Loop		HI-Z	Loop	HI-Z	Loop	HI-Z	Loop	HI-Z
In								Re l	A larm	Input s		Re l	A larm Input s
	1	2	3	4	5	6	7	8
Ou t
								1	1 2 3 4 5	6 7 8	Co m	2 9 10 11 12 13 14 15 16 C om
In	9	10	11	12	13	14	15	16
Ou t											AUDIO	INPUTS
									1		5	9	13
									2		6	10	14
									3		7	11	15
				OR					4		8	12	16

RS-232 TO RS-422

CONVERTER

NULL MODEM CABLE

CM9760-ALM

Figure 69. Connecting a CM9760-ALM

58 C636M-F (3/09)