Communication Ports
4.2 Fiber Optic Ethernet Ports
WARNING
Electric shock hazard – risk of serious personal injury and/or equipment
interference
If 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
LED that indicates the state of the port.
LED
State
Description
Yellow
The port is operating at
maximum speed
Speed
Off
The port is not operating at
maximum speed
Yellow (Solid)
Link established
Yellow (Blinking)
Link activity
Link
Off
No link detected
Pin-Out Description
The following is the pin-out for the RJ45 male connectors:
1
8
Figure 4.2
RJ45 Ethernet Port Pin
Configuration
Pin
Name
Description
1
RX+
Receive Data+
2
RX-
Receive Data-
3
TX+
Transmit Data+
4
Reserved (Do Not Connect)
5
Reserved (Do Not Connect)
6
TX-
Transmit Data-
7
Reserved (Do Not Connect)
8
Reserved (Do Not Connect)
Specifications
For specifications on the available copper Ethernet ports, refer to
Port Specifications (Page 27)"
4.2
Fiber Optic Ethernet Ports
Fiber optic Ethernet ports are available with either MTRJ (Mechanical Transfer
Registered Jack), LC (Lucent Connector), SC (Standard or Subscriber Connector) or ST
20
RUGGEDCOM RS400
Installation Manual, 01/2021, C79000-G8976-1016-11
