Installation guide

13
Ta b l e 1 L E D s
Feature Card LED State Description
T1 or E1
feature card
ACTIVITY (ACT) Fast flicker (green) The feature card is up and running.
Slow flicker (green) The feature card is not yet fully functional.
OK/MAINT Green The feature card has passed initial power-up diagnostics tests
and is operating normally.
Yellow • The feature card is busied out, but there are active calls.
Once all the calls are terminated the feature card will be
powered off.
• The feature card is not functioning correctly.
Off All calls associated with the card have been shut down, and it
is safe to remove the card with the system powered on.
• Remote Alarm
(RA)
• Local Alarm (LA)
• Loopback (LB)
On (yellow) One LED below each T1/E1 port indicates one of the
following:
• A local or remote loopback diagnostic test is running on
the associated T1 port.
• An alarm has been received on the associated T1/E1 port,
indicating loss of signal (LOS) or loss of multiframe
alignment (LOF) at the local or remote node.