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Communication Ports
4.4.5 Connecting Multiple RS485 Devices
<
12
19
m
(4
00
0
in
)
120Ω 10nF
120Ω 10nF
1
2
3
5
5
6
4
1
RUGGEDCOM RS401
2
Common (Isolated Ground)
3
Negative
4
Positive
5
Shield to Earth (Connected At a Single Point)
6
RS485 Devices (32 Total)
Figure 4.12
Recommended RS485 Wiring
28
RUGGEDCOM RS401
Installation Manual, 02/2020, C79000-G8976-1017-10