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Operation and Maintenance
5-4
9124-A2-LB20-00
March 2000
LED Descriptions
The following table identifies the alarms that cause the Alarm LED to light. See
Table 5-2 and Table 5-3 for network, DSX-1, and user data port interface LED
information.
Table 5-1. General Status LEDs
Label
Indication Color What It Means
OK Power and
Operational
Status
Green ON – FrameSaver unit has power and it is
operational.
OFF – FrameSaver unit is in a power-on
self-test, or there is a failure.
ALM Operational
Alarm (Fail)
Red ON – FrameSaver unit has just been reset,
or an error or fault has been detected.
Error/fault/alarm conditions:
H Alarm Indication Signal (AIS)
H CTS Down
H DLCI Down
H DTR Down
H Exceeded Error Rate (EER)
H LMI Down
H Loss of Signal (LOS)
H Network Communication Link Down
H Out of Frame (OOF)
H Power Supply Failure
H Primary or Secondary Clock Failed
H Self-Test Failed
H SLV Timeout
H Two Level-1 Users Accessing
Device
H Yellow Alarm Signal
OFF – No failures have been detected.
These alarms appear on the System and
Test Status screen. See Health and Status
Messages for additional information.
TST Test Mode Yellow ON – Loopback or test pattern is in progress,
initiated locally, remotely, or from the
network.
OFF – No tests are active.