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20 C1642M-A (1/05)
Figure 9.
RS-485 2-Wire (Half Duplex) Data Communication Wiring
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1
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9
RS-485 2-WIRE
DATA SELECTION
RS-485 2-WIRE DATA CONNECTIONS BETWEEN DEVICE A AND FR85011 RECEIVER
FR
RECEIVER –
DATA CONNECTOR
85011
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GND
RX+/TX+
--RX /TX
DEVICE A
RS-485 2-WIRE DATA CONNECTIONS BETWEEN DEVICE B AND FT85011 TRANSMITTER
FT
TRANSMITTER –
DATA CONNECTOR
85011
DEVICE B
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RS-485 2-WIRE
DATA SELECTION
3
4
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8
GND
RX+/TX+
--RX /TX
RS-485
2-WIRE
1 (TX+/RX+) DATA OUT+/DATA IN+
2 (TX-/RX-) DATA OUT-/DATA IN-
RS-485
2-WIRE
1 (TX+/RX+) DATA OUT+/DATA IN+
2 (TX-/RX-) DATA OUT-/DATA IN-
C1642M-AFT85011.bookPage20Wednesday,January19,200512:46PM