USB to RS-422 & RS-485 Adapter
-8-
RJ-11 Connector
RS-422
RS-485
Multi-Drop:
RS-422 (Full Duplex Mode)
PIN2 : RX+
PIN3 : RX-
PIN4 : TX-
PIN5 : TX+
RS-485 ( Half Duplex Mode)
PIN4 : D-(RX)
PIN5 : D+(TX)
Point to Point:
5
4
PC# 1
PC# 2
2
3
5
4
2
3
RJ-11 RJ-11
TX+
TX-
RX+
RX
-
TX+
TX-
RX+
RX
-
Point to Point:
5
4
PC# 1
PC# 2
5
4
RJ-11 RJ-11
D+(TX)
D-(RX)
D+(TX)
D-(RX)
5
4
PC# 3
PC# 4
5
4
RJ-11
RJ-11
D+(TX)
D-(RX)
D+(TX
D-(RX)
5
4
PC# 1
PC# 2
5
4
RJ-11 RJ-11
D+(TX)
D-(RX)
D+(TX)
D-(RX)