Maintenance and Troubleshooting
5-2
9121-A2-GB20-20
May 1998
FrameSaver 9120 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:
H
Out of Frame ( OOF )
H
Loss of Signal (LOS)
H
Alarm Indication Signal (AIS)
H
Exceeded Error Rate (EER)
H
Yellow Alarm Signal
H
Device Fail
H
DBM Card Failed
H
Memory Failed
H
T1 Failed
H
CPU Failed
H
ISDN Network Failed
H
LMI Down
H
DLCI Down
H
Network Communication Link Down
H
CTS Down to device
H
DTR Down to device
H
Download Failed
H
Primary or Secondary Clock 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.