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Communication Ports
4.1 Copper Ethernet Ports
Electric shock hazard – risk of serious personal injury and/or equipment
interference
When shielded cables are used, make sure the shielded cables do not form a ground
loop via the shield wire and the RJ45 receptacles at either end. Ground loops can
cause excessive noise and interference, but more importantly, create a potential
shock hazard that can result in serious injury.
LEDs
Each port features a Speed and Link/Activity LED that indicates the state of the port.
1
1
2
Figure 4.2
Speed
Link/Activity
Pin-Out
The following is the pin-out for the RJ45 male connectors:
8
Figure 4.3
24
WARNING
2
Speed LED
Link/Activity LED
RJ45 Port LEDs
LED
1
RJ45 Ethernet Port Pin Configuration
Pin
1
2
3
4
5
State
Yellow
Off
Yellow (Solid)
Yellow (Blinking)
Off
Name
RX+
RX-
TX+
Reserved (Do Not Connect)
Reserved (Do Not Connect)
Description
The port is operating at 100
Mbps
The port is operating at 10 Mbps
Link established
Link activity
No link detected
Description
Receive Data+
Receive Data-
Transmit Data+
RUGGEDCOM RS900W
Installation Manual, 04/2022, C79000-G8976-1028-14
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