Installation
150-512-100-03, Revision 03
24
September 25, 1998
HRU-512 List 1
Table 3.
HRU-512 List 1 Alarm History Screen Definitions
Message
Full Name
Description
NONE
No Alarms
There are currently no alarms in effect.
RLOS
Remote Loss of Signal
No signal at the remote HRU-512 List 1 DS1
input port.
ALRM
Minor Alarm
A Minor Alarm condition is in effect.
LOSW
Loss of Sync Word
The HDSL loop has lost sync.
HES
HDSL Loop Errored
Second
The HDSL CRC errors have exceeded the ES
threshold
MOOS
Multiplexer (Mux) Out of
Sync
The D4 Channel Bank is generating a “MOOS”
condition.
DS1
DS1 BPV Errored
Seconds
Indicates that the number of BPV seconds, in
which at least one BPV has occurred at the HRU
DS1 input, has exceeded the 24-hour ES
threshold.
MAL
Margin Alarm
The margin on the HDSL loop has dropped
below the threshold (1 to 15 dB) set by the user.
RAIS
Remote Alarm Indication
Signal
Indicates an AIS (all ones pattern is being
transmitted from the HRU-512 List 1 to the CPE.
LAIS
Local Alarm Indication
Signal
Indicated an AIS (all ones pattern is being
transmitted from the HLU onto the D4 Channel
Bank data bus (towards the network) for the DS0
time slots (bandwidth) as provisioned by the
user.
