Revision
01
March 17, 1998
350-611-103-01
12
PairGain
Engineering - Plant Series
HLU-611
List
3
T
ESTING
Minor alarm and diagnostic messages routinely appear on the HLU-611 List
3 front-panel four-character display. This display turns on when power is
initially applied to the HLU-611 List 3. To conserve power, the display only
remains on for five minutes if neither the MODE or SEL buttons are pressed.
The use of either button activates the 4-character display and restarts the
5-minute power-control timer.
Alarms
Only one alarm can be displayed at a time, therefore, only the highest priority
alarm is displayed if more than one alarm exists. The following table lists the
alarms ordered by priority.
Status Menu Alarms Messages
Message
Full Name
Description
NONE
No Alarms
LLOS
Local Loss
of Signal
No signal from HLU-611 List 3 local T1 interface.
RLOS
Remote
Loss of
Signal
No signal from HRU-612 remote T1 interface.
LOSW
Loss of
Sync Word
The VHDSLs loop has lost sync.
HES
VHDSL
Errored
Second
The VHDSL CRC count has exceeded the user-selected ES
threshold.
DS1
Digital
Service 1
DS1 input BPVs at the HRU-612 have exceeded the user
selected ES threshold.