Section 150-319-254
Revision 02
Page 27
TABLE 8. ELU-319 FOUR-CHARACTER FRONT PANEL MESSAGES (CONTINUED)
Message
Full Name
Description
ACQ 1 or 2
Acquisition 1 or Acquisition 2
The ELU and first Doubler multiplexers are trying to establish
synchronization over each of Loops 1 or 2 of Span 1.
A2L1 or 2
Acquisition 2 Loop 1 or Loop 2
The 1st Doubler and ERU or 2nd Doubler multiplexers are trying
to establish synchronization with each other on Loops 1 or 2 of
Span 2
A3L1 or 2
Acquisition 3 Loop 1 or Loop 2
The 2nd Doubler and ERU multiplexers are trying to establish
synchronization with each other on Loops 1 or 2 of Span 3.
H1ES
HDSL Loop 1 Errored Second
HDSL CRC error on Loop 1.
H2ES
HDSL Loop 2 Errored Second
HDSL CRC error on Loop 2.
ACO
Alarm CutOff
An MNRALM has occurred, and was retired to an ACO condition
by pressing the SEL button on the ELU-319 front panel.
SELF TEST
The ELU-319 is in a self test mode. This occurs every power
ON/OFF cycle. The self-test sequence includes the input G.703
transceiver chip when the HDSL loops are not in sync. This can
cause the AIS pattern, normally transmitted from the ELU during
this time, to exhibit bipolar violations (BPVs).
ALRM
Alarm Condition Exists
A minor alarm MNRALM condition is in effect.
1=xx
or
2=yy
HDSL Loop Margins
Indicates the worst-case signal-to-noise ratio measured for each
loop. A value of ‘06’ or greater is adequate for reliable system
operation.
PWR FEED
SHRT
Power Feed Short
Indicates a short-circuit between the two HDSL pairs, or the ERU-
412 cannot communicate with the ELU-319 over good cable.
PWR FEED
OPEN
Power Feed Open
Indicates an open circuit in the Tip and Ring of either HDSL pair.
BAD RT?
No response from ERU
The ELU-319 does not receive any response from the ERU-412.
Thus, the ERU’s integrity is questionable.
VER
ELU Software Version #
This is displayed during the System Settings review mode. Press
the Mode button for 3 seconds.
LIST 0xL
ELU’s List #
Displayed during System Settings review mode defined above.
LOSW
Loss of Sync Word
Indicates that one of the HDSL loops has lost synchronization.
Causes a minor alarm.
LLOS
Local Loss of Signal
Indicates that no signal is detected at the G.703 input to the ELU-
319. Causes a minor alarm.
RLOS
Remote Loss of Signal
Indicates that no signal is detected at the G.703 input to the ERU-
412. Causes a minor alarm.
G.703
G.703 BPV errors
Indicates that the number of BPVs at the ELU-319 and ERU-412
G.703 inputs that have exceeded the 24-hour ES threshold.
Causes a minor alarm.
MAL1(2)
Margin Alarm Loop 1 or 2
The margin on HDSL loop 1 (2) has dropped below the threshold
(1 to 15 dB) set by the user.
