Chapter 3
Communication Ports
RUGGEDCOM RUGGEDCOM RS940G
Installation Guide
16
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.
Each port features LEDs that indicate the state of the port.
1
2
Figure 10: RJ45 and FastConnect RJ45 Port LEDs
1.
Speed LED
2.
Link/Activity LED
LED
State
Description
Yellow
The port is
operating at 1000
Mbps
Speed
Off
The port is
operating at 10 or
100 Mbps
Yellow (Solid)
Link established
Yellow (Blinking)
Link activity
Link/Activity
Off
No link detected
The following is the pin-out for the RJ45 male connectors:
1
8
Figure 11: RJ45 Ethernet Port Pin Configuration
Name
Pin
10/100Base-TX
1000Base-TX
Description
1
RX+
BI_DB+
Receive Data+
or Bi-Directional
2
RX-
BI_DB-
Receive Data-
or Bi-Directional
3
TX+
BI_DA+
Transmit Data+
or Bi-Directional
4
Reserved (Do Not Connect)
5
Reserved (Do Not Connect)
6
TX-
BI_DA-
Transmit Data-
or Bi-Directional
7
Reserved (Do Not Connect)
8
Reserved (Do Not Connect)
For specifications on the available copper Ethernet ports, refer to
Section 4.3, “Copper Ethernet Port
Specifications”
.
Section 3.2
Fiber Optic Ethernet Ports
Fiber optic Ethernet ports are available with either LC (Lucent Connector) and SC (Standard or Subscriber
Connector) connectors. Make sure the Transmit (Tx) and Receive (Rx) connections of each port are properly
connected and matched to establish a proper link.
