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CH. 6: COMMUNICATIONS 06 Apr 2000 PAGE 33
GFK-1819
6.5 RS-485 Two-Wire
Figure 6.3 – RS-485 Two-Wire
RS422/485
(2-w ire)
RxD 8
AE
Rx-
TxD
0V
RS232
6
7
5
Tx+
Tx-
Rx+
RS422/485
3
4
2
0.1uF Ceramic
Tx/Rx+
Tx/Rx-
COM
TIU110/100
TIU050/101/102/103/111/112/113/20X
RS422/485
(2-w ire)
RxD 7
AE
Rx-
TxD
0V
RS232
5
6
4
Tx+
Tx-
Rx+
RS422/485
2
3
1
0.1uF Ceramic
Tx/Rx+
Tx/Rx-
COM