User`s guide

Diagnostics
6-3
5100-A2-GB20-00
November 1996
The following table describes the meaning and states of the LEDs.
Type
LED LED is . . . Indicating . . .
DSL
LNK On
Off
Normal operation.
Link down.
CD Blinking
Off
On
Normal operation. Carrier detect
training mode.
No carrier.
Normal operation. Data mode.
RX Blinking, On
Off
Normal operation. Indicates
presence of DSL traffic.
No data being received.
TX Blinking, On
Off
Normal operation. Indicates
presence of DSL traffic.
No data being sent.
Ethernet
JAB Blinking
Off
Presence of a jabber condition.
Normal operation.
COL Blinking
Off
Presence of a collision.
Normal operation. No collisions.
RX Blinking, On
Off
Normal operation. Indicates
presence of LAN traffic.
No data being received.
TX Blinking, On
Off
Normal operation. Indicates
presence of LAN traffic.
No data being sent.
System
TEST Blinking Normal operation.
SYS Blinking
Off
On
Self-test in progress. Occurs at
power-up.
Error condition. Self-test failed.
Normal Operation. Self-test
successful.
If any of the states defined in the table as “Error Conditions” occurs, reset the
card using the Reset selection from the main menu of the local management
utility. If the error condition persists, attempt to run the loopback tests as
described in
Using the Loopback Tests on page 6-4.