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Faceplate LEDs
The FrameSaver unit's faceplate includes LEDs ( light-emitting diodes) that provide
status on the FrameSaver unit and its interfaces. In addition, it provides backup status
for FrameSaver units equipped with an ISDN DBM.
See the BKP (backup) and ALM (alarm) LEDs when verifying DBM setup and
operation. For additional LED information, see the User's Guide.
Label
Indication
OK
Power and
Operational
Status
ALM
Operational
Alarm ( Fail )
TST
Test Mode
1
BKP
Backup
1
When an ISDN BRI DBM is installed, if the OK LED comes on during power
recycling, then goes off, the ISDN BRI DBM may have failed.
Color
What It Means
Green
ON – FrameSaver unit has power and is
OFF – FrameSaver unit is in a power-up
Red
ON – FrameSaver unit has just been
OFF – No failures have been detected.
Yellow
ON – Loopback or test pattern in
OFF – No tests are active.
Yellow
ON – FrameSaver unit is in Backup
OFF – FrameSaver unit is not in Backup
Blinking ON and OFF ( Rate: 1 Hz ) –
12
operational.
self-test, or there is a failure.
reset, or an error or fault has been
detected.
progress, initiated locally, remotely,
or from the network.
mode; that is, the backup link has
been established, and backup is in
progress through the specified
Alternate Destination Link.
mode.
Alternate Destination Link is being
established, but no data has been
passed.
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