
RUGGEDCOM RS910W
Installation Guide
Chapter 4
Communication Ports
Connecting Multiple RS485 Devices
29
<
12
19
m
(
40
00
in
)
120Ω 10nF
120Ω 10nF
1
2
3
5
5
6
4
Figure 21: Recommended RS485 Wiring
1.
RUGGEDCOM RS910W Device
2.
Common (Isolated Ground)
3.
Negative
4.
Positive
5.
Shield to Earth (Connected At a Single
Point)
6.
RS485 Devices (32 Total)