Pelco FR85041 installation manual RS-485 2-WireHalf Duplex Data Communication Wiring

DEVICE A

R+/T+

R-/T-

RS-485 2-WIRE

FR85041

RECEIVER –

DATA CONNECTOR

1	T+/R+ (DATA OUT+/DATA IN+)	RS-485 2-WIRE
2	T-/R- (DATA OUT-/DATA IN-)	DATA SELECTION
3		1 2		3	4
4
		0			5
5
		9
			8	7	6
6
7
8

GND

RS-485 2-WIRE DATA CONNECTIONS BETWEEN DEVICE A AND FR85041 RECEIVER

DEVICE B	RS-485
	2-WIRE
R+/T+
R-/T-

FT85041

TRANSMITTER –

DATA CONNECTOR

1	T+/R+ (DATA OUT+/DATA IN+)	RS-485 2-WIRE
2	T-/R- (DATA OUT-/DATA IN-)	DATA SELECTION
3		1 2		3	4
4
		0			5
5
		9
			8	7	6
6
7
8

GND

RS-485 2-WIRE DATA CONNECTIONS BETWEEN DEVICE B AND FT85041 TRANSMITTER

Figure 11. RS-485 2-Wire (Half Duplex) Data Communication Wiring

22 C1645M-A (9/06)