Maintenance
150-231-175-01, Revision 01
18
September 23, 1998
HLU-231 List 7E
Table 8.
HLU-231 Status Menu Messages
Message
Full Name
Description
NONE
No Alarms
LLOS
Local Loss of Signal
No signal from HLU-231 List 7E local T1 interface.
RLOS
Remote Loss of Signal
No signal from HRU remote T1 interface.
LOSW1(2)
Loss of Sync Word 1(2)
HDSL loop 1 or 2 has lost sync.
H1ES
HDSL Loop 1 Errored Second
Loop 1 CRC have exceeded the ES threshold.
H2ES
HDSL Loop 2 Errored Second
Loop 2 CRC have exceeded the ES threshold.
DS1
Digital Service 1
BPVs for either the HLU-231 List 7E or HRU DS1 input have exceeded
the user selected ES threshold.
R(L)AIS
Remote (Local) Alarm Indicating
Signal
Indicates an AIS (all “1”) pattern is being transmitted from the remote
(local) T1 output port.
MAL1
Margin Alarm 1
The margin on HDSL loop 1 has dropped below the threshold (1 to 15
dB) set by the user. Setting the threshold to 0 inhibits the margin
alarm.
MAL2
Margin Alarm 2
The margin on HDSL loop 2 has dropped below the threshold (1 to 15
dB) set by the user. Setting the threshold to 0 inhibits the margin
alarm.
CHREV
Channels Reversed
The Loop 1 and Loop 2 HDSL pairs are reversed at the HDU-451 or
HRU line input ports. Loop 1 is specified to carry the (-) simplex DC
voltage, and Loop 2 is specified to carry (+) simplex DC voltage.
SMJK
Smart-Jack Loopback
Loopback at HRU remote towards network initiated by (2 in 5) in-band
loopback code or out-of-band ESF data link code (Figure 15).
NREM
Network Remote Loopback
Loopback at HRU (remote) towards network initiated from CO
(network) by Intelligent Line Repeater (ILR) #2 code, HLU-231 front
panel MANUAL LOOPBACK push-buttons, HRU front panel
push-button, or maintenance terminal (Figure 15).
NLOC
Network Local Loopback
Loopback at HLU-231 List 7E (local) towards network initiated from C0
by IOR code, HLU-231 front panel MANUAL LOOPBACK push-buttons
or maintenance terminal (Figure 15).
HDU1
Network Doubler 1 Loopback
Loopback at Doubler #1 towards network initiated by IOR code or
HLU-231 front panel MANUAL LOOPBACK push-buttons or
maintenance terminal (Figure 15).
HDU2
Network Doubler 2 Loopback
Loopback at Doubler #2 towards network initiated by IOR code or
HLU-231 front panel MANUAL LOOPBACK push-buttons or
maintenance terminal (Figure 15).
CLOC
Customer Local Loopback
Loopback at HRU (local) towards CI initiated from CPE by ILR code or
HLU-231 front panel MANUAL LOOPBACK push-button or
maintenance terminal (Figure 15).
CREM
Customer Remote Loopback
Loopback at HLU-231 List 7E (remote) towards customer initiated by
IOR code or HLU front panel MANUAL LOOPBACK push-buttons, or
maintenance terminal (Figure 15).
CDU 1
Customer Doubler 1 Loopback
Loopback at Doubler 1 towards CI initiated by ILR code, HLU-231 front
panel MANUAL LOOPBACK push-buttons, or maintenance terminal
(Figure 15).
