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150-319-205-05, Issue 5
Table 14. ELU-319 List 5E and List 6E Status Menu Messages: Alarms
Message
Full Name
LLOS
Local Loss of Signal
RLOS
Remote Loss of Signal
LOSW1 LOSW2
Loss of Sync Word 1 or 2
BER
Bit Error Rate
MAL1
Margin Alarm 1
MAL2
Margin Alarm 2
CHREV
Channels Reversed
NREM
Network Remote Loopback
NLOC
Network Local Loopback
NDU1
Network Doubler 1 Loopback
NDU2
Network Doubler 2 Loopback
NDU3
Network Doubler 3 Loopback
CLOC
Customer Local Loopback
CREM
Customer Remote Loopback
CDU1
Customer Doubler 1 Loopback
CDU2
Customer Doubler 2 Loopback
CDU3
Customer Doubler 3 Loopback
TLOS
Transmit Loss of Signal Loopback
ELU-319 List 5E and List 6E
Description
No signal from ELU-319 List 5E local E1 input.
No signal from ERU E1 input.
One of the HDSL loops has lost synchronization.
The total system error count (TSEC) has exceeded the user-selected
threshold.
The margin on the HDSL Loop 1 has dropped below the threshold
(1 to 15 dB) set by the user. Setting the threshold to zero inhibits the
margin alarm.
The margin on the HDSL Loop 2 has dropped below the threshold
(1 to 15 dB) set by the user. Setting the threshold to zero inhibits the
margin alarm.
The Loop 1 and Loop 2 HDSL pairs are reversed at the ERU input port.
Loop 1 is specified to carry the (-) simplex DC voltage, and Loop 2 is
specified to carry the (+) simplex DC voltage.
Loopback at ERU to network initiated from CO (network) by Intelligent
Line Repeater (ILR) #2 code, Manual Loopback buttons on the
ELU-319 List 5E front panel, ERU front panel button or by the
maintenance terminal.
Loopback ELU-319 (local) to network initiated from CO by IOR code,
the ELU-319 List 5E front panel Manual Loopback buttons or
maintenance terminal.
Loopback at Doubler #1 to network initiated by IOR code or by Manual
Loopback buttons on the ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at Doubler #2 to network initiated by IOR code or by Manual
Loopback buttons on the ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at Doubler #3 to the network initiated by IOR code, the
Manual Loopback buttons on ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at ERU (local) to CI initiated from CPE by the ILR code or the
Manual Loopback buttons on the ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at ELU-319 List 5E (remote) to customer initiated by IOR
code or the Manual Loopback buttons on the ELU-319 List 5E front
panel or by the maintenance terminal.
Loopback at Doubler #1 to CI initiated by ILR code, the Manual
Loopback buttons on ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at Doubler #2 to CI initiated by ILR code, the Manual
Loopback buttons on the ELU-319 List 5E front panel or by the
maintenance terminal.
Loopback at Doubler #3 to CI initiated by ILR code or by Manual
Loopback buttons on the ELU-319 List 5E front panel or by the
maintenance terminal.
ERU is in a logic loopback state caused by a loss of its E1 input from
the CI (if enabled at the ERU via its TLOS switch option).
January 26, 2000
Maintenance
25
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