RS900 Family Installation Guide
3.2 Copper Ethernet Port
Units with 10/100Base-TX ports allow connection to standard Category 5 (CAT-5)
unshielded twisted-pair (UTP) cable with RJ45 male connectors. The RJ45 receptacles
are directly connected to the chassis ground on the unit and can accept CAT-5 shielded
twisted-pair (STP) cables. If shielded cables are used, care must be taken to ensure the
shielded cables do not form a ground loop via the shield wire and the RJ45 receptacles
at either end. The figure below shows the shows the RJ45 port pin-out and LEDs.
Figure 10 - RJ45 port pin-out and LEDs
Pin Signal
1 +Rx
2 -Rx
3 +Tx
4 No Connection
5 No Connection
6 -Tx
7 No Connection
8 No Connection
Case
Shield (Chassis
Ground)
Table 7 - RJ45 port pin-out
Status LED Colour Activity Comments
Off 10 Mbps
Speed LED Yellow
On 100 Mbps
Solid Link Established
Link LED Yellow
Blinking Tx/Rx Activity
Table 8 - RJ45 port LED description
2010 RuggedCom Inc. 26 Rev107