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PAGE 32 06 Apr 2000 CH. 6: COMMUNICATIONS
GFK-1819
6.4 RS-422/485 F
o
ur-Wire
Note:
The descriptions used by different manufacturers for RS-422/485 connections vary. Please refer to
the automation equipment manufacturers own manuals for connection details.
Note:
Horner produces application notes explaining the connection to each of the different automated
equipment manufactures. These application notes are ongoing, see your installation CD for any released
documentation.
Figure 6.2 – RS-422/485 Four-Wire
RS422/485
(4-wire)
Automated Equipment
RS422/485 Connections
See Note Below
Rx-
TxD
RS232
6
0V 7
RxD
8
5
Tx+
Tx-
Rx+
RS422/485
3
4
2
0.1uF Ceramic
(Section of 13-pin
Terminal Block)
TIU110/100
RS422/485
(4-wire)
Rx-
TxD
RS232
5
0V 6
RxD
7
4
Tx+
Tx-
Rx+
RS422/485
2
3
1
0.1uF Ceramic
(Section of 8-pin
Terminal Block)
TIU050/101/102/103/111/112/113/20X
Automated Equipment
RS422/485 Connections
See Note Below