Hardware reference guide

Ethernet Modules
35013379 02 October 2007 323
LED Indicators
and Descriptions
The following figure shows the NOE771xx LED indicators.
The following table describes the meaning of each NOE771xx LED indicator.
LED Descriptions
LED Color Description
Active Green Indicates the backplane is configured.
Ready Green Indicates module is healthy.
Fault Red During a crash while going through a reset.
If Duplicate IP address is detected.
If no link is available.
While going through BOOTP sequence.
Run Green Flashes to indicate diagnostic code, as described in
"Run LED Status" (following table).
Coll. Red Flashes when Ethernet collisions occur.
Link Green On when Ethernet link is active.
TxAct Green Flashes to indicate Ethernet transmission.
RxAct Green Flashes to indicate Ethernet reception.
Kernel Amber On when in Kernel Mode.
Flashing while in download mode.
10MB Green On when the module is connected to a 10 Megabit
network.
100MB Green On when the module is connected to a 100 Megabit
network.
Fduplex Green On when Ethernet is operating in the full duplex
mode.
Appl Green On when crash log entry exists.
Fault
Link
Run Coll
ApplKernel
Active
Tx Act
Rx Act
10MB
100MB Fduplex
Ready
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com