Hardware reference
HARDWARE REFERENCE MANUAL
72
Revi
si
on 3.0
WIRE 2/4 Switch
fig. 23
The WIRE 2/4 switch sets the communication standard for the
RS422/485 serial connection. To use one of the communication
standards, do this:
/i
A
B
C
D
E
F
G
H
Communication
standard
How to select it
RS422
Set the WIRE 2/4 switch right
RS485
Set the WIRE 2/4 switch left
Note
In RS485 mode, the transmit pair is connected to the
receive pair.
I51E-EN-03.book Seite 72 Donnerstag, 28. Juni 2007 1:05 13