GE A8950CC installation instructions Data module channel sequence, RS-485 4-WIRE Interface

TABLE 9: RS-485 4-WIRE INTERFACE

DATA SELECT Switch SW1:

Position 9 = standard offset

Position A = 1V offset

Position B = 2V offset

Pin	Signal
1	RS-485	Out (+)
2	RS-485	Out (-)
3	GND/SHIELD
4	+5 VDC Bias Out
5	Termination, tie to 8 if req’d.
6	GND/SHIELD
7	RS-485	In (-)
8	RS-485	In (+)

TABLE 11: TEST MODE LOOPBACK INTERFACE

DATA SELECT Switch: Position F

Pin	Signal
1	Tie to pin 8
2	Tie to pin 7
3	N/C
4	N/C
5	N/C
6	N/C
7	Tie to pin 2
8	Tie to pin 1

TABLE 10: SENSORNET INTERFACE

DATA SELECT Switch: Position 6

Pin	Signal
1	N/C
2	N/C
3	GND
4	N/C
5	Termination, tie to 8 if req’d.
6	GND/SHIELD
7	Sensornet (-)
8	Sensornet (+)

Data module - channel sequence

	Slot 1	Slot 2	Slot 3	Slot 4
RJ45-A	Ch 1 IN/OUT	Ch 5 IN/OUT	Ch 9 IN/OUT	Ch 13 IN/OUT
RJ45-B	Ch 2 IN/OUT	Ch 6 IN/OUT	Ch 10 IN/OUT	Ch 14 IN/OUT
RJ45-C	Ch 3 IN/OUT	Ch 7 IN/OUT	Ch 11 IN/OUT	Ch 15 IN/OUT
RJ45-D	Ch 4 IN/OUT	Ch 8 IN/OUT	Ch 12 IN/OUT	Ch 16 IN/OUT

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