Paradyne FrameSaver 9620 Installation Instructions Manual page 12

Access Unit LEDs
Label Indication
OK Power and
Operational
Status
ALM Operational
Alarm ( Fail )
TST Test Mode
1
BKP Backup
1
The BKP LED indicates backup for an ISDN BRI DBM or external backup device.
Color What It Means
Green ON – Access unit has power and is
operational.
OFF – Access unit is in a power-up
self-test, or there is a failure.
Blinking ON and OFF ( Rate: 1 Hz ) –
Software is being downloaded.
Red ON – Access unit has just been reset, or
an error or fault has been detected.
OFF – No failures have been detected.
Yellow ON – Loopback or test pattern in
progress, initiated locally, remotely,
or from the network.
OFF – No tests are active.
Yellow ON – Access unit is in Backup mode; that
is, the backup link has been
established, and backup is in
progress through the specified
Alternate Destination Link.
OFF – Access unit is not in Backup mode.
Blinking ON and OFF ( Rate: 1 Hz ) –
Alternate Destination Link is being
established, but no data has been
passed.
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