Pelco C538M Setting the Start Address, Pelco Manual C544M 2/98, Table B, Start Addresses, Table C

3.2.1 Setting the Start Address

Each Pelco CM9760-IRC unit requires a six-bit start address. The start address is configured using the DIP switches on the communication card (see Figure 5: DIP switches). Each control card occupies one address space. An IRC unit occupies four address spaces (if there are only two control cards in the unit, it still occupies four address spaces).

The start address of an IRC unit is set with the DIP switches on the communication card per Table B.

			Table B.	Start Addresses
DIP	DIP	DIP	DIP	DIP	DIP	Start Address	Start Address
Switch 8	Switch 7	Switch 6	Switch 5	Switch 4	Switch 3	(Binary)	(Decimal)
ON	ON	ON	ON	ON	ON	000000	0
ON	ON	ON	ON	ON	OFF	000001	1
ON	OFF	ON	ON	ON	ON	010000	16
ON	OFF	ON	ON	OFF	ON	010010	18
OFF	OFF	ON	ON	OFF	ON	110010	50
OFF	OFF	OFF	OFF	OFF	ON	111110	62

NOTE: It is necessary only to set the start address of the IRC as a whole. The start address of each control card in the unit is set by internal de- fault.

Unlike an IRC unit, a serial GPI occupies one address space. In the sample system outlined in Figure 3, the start addresses would set up according to Table C.

		Table C.	Start Addresses
Device	Address	(Decimal)	Address (Binary)
Serial GPI		0	000000	Set via serial GPI communication
				card DIP switches
IRC unit 1/control card 1		1	000001	Set via IRC unit 1 communication
				card DIP switches
Control card 2		2	000010	Automatic internal default
Control card 3		3	000011	Automatic internal default
Control card 4		4	000100	Automatic internal default

Pelco Manual C544M (2/98) 9