RuggedCom RS900 ユーザーズマニュアル
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
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
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
2 -Rx
3 +Tx
4 No
Connection
5 No
Connection
6 -Tx
7 No
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
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