Revision 01
June 12, 1997
Section 150-441-124
HiGain HLU-D41
PairGain Engineering - Plant Series
Page 25
Table 14. HLU-D41 Alarm Field Messages and Descriptions
Message
Full Name
Description
NONE
No Alarms
No alarms to report.
RLOS
Remote Loss of Signal
No signal at the HRU-512 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 Errored Second
The HDSL CRCs have exceeded the ES threshold
MOOS
Multiplexer Out of
Sync
The D4 channel bank is generating a MOOS condition.
LAIS
Local Alarm Indicating
Signal
Indicates an AIS (all 1s) pattern is being transmitted from the local
HLU-D41 onto a D4 channel bank data bus (towards the network) for the
DS0 time slots (bandwidth).
DS1
DS1 BPV errors
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.
RAIS
Remote Alarm
Indicating Signal
Indicates an AIS (all 1s) pattern is being transmitted from the HRU-512
DS1 output toward the CPE.
MAL
Margin Alarm
The margin on the HDSL loop has dropped below the threshold (1 to 15
dB) set by the user.
-----
Not Applicable
Data for the indicated terminal parameter is not applicable on the
fractional T1 system.
Table 15. HLU-D41 Loopback Field Messages and Descriptions
Message
Full Name
Description
NREM
Network Remote
Loopback
Loopback at HRU (remote) towards network initiated from C.O. (network) by
intelligent line repeater #1 code, HRU Mode and Choice Setup buttons or
Maintenance Terminal menu.
NLOC
Network Local
Loopback
Loopback at HLU (local) towards network initiated from CO (network) by
intelligent office repeater code or by depressing both the HLU Mode and Choice
Setup buttons.
CLOC
Customer Local
Loopback
Loopback at HRU (local) towards Customer Interface (CI) initiated from Customer
Premises Equipment (CPE) by intelligent line repeater #1 code.
CREM
Customer Remote
Loopback
Loopback at HLU (remote) towards customer initiated from CPE (customer) by
intelligent office repeater code.
16.3
The Span 1 screen contains data on the HDSL loop between the HLU-D41 and the first doubler. The
Span 2 Screen refers to the loops between the first doubler and the HRU-512 for single-doubler
circuits or between the first and second doublers for two-doubler circuits. The Span 3 screen refers
to the loops between the second doubler and the HRU-512 for two-doubler circuits. All status
screens contain the same DS1 interface information.
