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C1642M-A (1/05) 21
Figure 10.
RS-485 4-Wire (Full Duplex) Data Communication Wiring
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9
RS-485 4-WIRE
DATA SELECTION
RS-485 4-WIRE FR85011DATA CONNECTIONS BETWEEN DEVICE A AND RECEIVER
FR85011
RECEIVER –
DATA CONNECTOR
1 (TX+) DATA OUT+
2 (TX-) DATA OUT-
3 (RX+) DATA IN+
4 (RX-) DATA IN-
5
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8
GND
RX+
RX-
TX+
TX-
DEVICE A
FT85011
TRANSMITTER –
DATA CONNECTOR
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9
RS-485 4-WIRE
DATA SELECTION
RS-485 4-WIRE FT85011DATA CONNECTIONS BETWEEN DEVICE B AND TRANSMITTER
1 (TX+) DATA OUT+
2 (TX-) DATA OUT-
3 (RX+) DATA IN+
4 (RX-) DATA IN-
5
6
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8
GND
RX+
RX-
TX+
TX-
DEVICE B
RS-485
4-WIRE
RS-485
4-WIRE
C1642M-AFT85011.bookPage21Wednesday,January19,200512:46PM