Maintenance and Troubleshooting
5-2
9621-A2-GB20-30
August 1997
FrameSaver 9620 Access Unit
Label
Indication
Color
What It Means
OK
1
Power and
Operational
Status
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.
ALM
Operational
Alarm ( Fail )
Red
ON –
Access unit has just been reset, or an
error or fault has been detected.
Error/fault/alarm conditions:
No Signal ( NS )
Out of Service ( OOS )
Out of Frame ( OOF ),
Excessive Bipolar Violation (BPV)
Power Supply
Device Fail
DBM Card Failed
Compression Connect Failure
Low Compression Ratio
Memory Failed
ISDN Network Failed
LMI Down
DLCI Down
Network Communication Link Down
CTS Down to device
DTR Down to device
Download Failed
OFF –
No failures have been detected.
1
When an ISDN BRI DBM is installed, if the OK LED comes on during power recycling, then goes
off, the ISDN BRI DBM has probably failed.