RS900 Family Installation Guide
3.2 RJ45 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
Page 25 of 42
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2008 RuggedCom Inc. All rights reserved.
Rev100
