Front-Panel Display Messages - ADC HiGain H2TU-C-231 Manual

LTPH-TP-1034-01, Issue 1
Table 2 lists the front-panel display messages. The four-character display reports the code of a pertinent alarm,
loopback, or diagnostic message and, in some cases, is followed by a four-character message that modifies the
first message with a value or current configuration setting.
Message Full Name
ALARM MESSAGES
ACO Alarm Cutoff
ALRM Alarm Condition Exists
DBER DS1 Bit Error Rate
HBER HDSL2 Block Error Rate
LA Loop Attenuation
LAIS Line Alarm Indication Signal
LLOS Line (Unit) Loss of Signal
LOSW Loss of Sync Word
MAL Margin Alarm
PWR FEED GND Power Feed Ground
PWR FEED OPEN Power Feed Open
PWR FEED SHRT Power Feed Short
PRMF Performance Report Messaging -
Far End
PRMN Performance Report Messaging -
Near End
RAIS Remote Alarm Indication Signal
RLOS Remote (Unit) Loss of Signal
RRAI Remote RAI—Remote Alarm
Indication at the H2TU-R (Net signal
has errors.)
TRCI Transmit RAI-CI—Remote Alarm
Indication at the H2TU-R (Net signal
does not have errors.)
TUC Transmission Unit Central Office
TUR Transmission Unit Remote End
H2TU-C-231 List 4E
Table 2. Front-Panel Display Messages
Description
A system alarm has occurred and has been retired to an ACO condition
by pressing the SEL pushbutton on the H2TU-C front panel.
A system alarm condition is in effect.
A system DS1 BER alarm is in effect and remains in effect until cleared.
A system HDSL2 Block Error Rate alarm is in effect.
Indicates that the attenuation on the HDSL2 loop has exceeded the
maximum threshold value.
Indicates an AIS (unframed all ones) pattern is being received or
transmitted at the H2TU-C DS1 input or output ports.
Indicates that no signal is detected at the DSX-1 input to the H2TU-C.
Causes a system alarm.
Indicates that the HDSL2 loop has lost synchronization.
The margin on HDSL2 loop has dropped below the threshold
(0 to 15 dB) as set by the operator.
The HDSL2 loop is grounded.
Indicates a line power open condition.
Indicates a short between the Tip and Ring of the HDSL2 pair.
H2TU-R PRM-FE BER threshold has been exceeded.
H2TU-R PRM-NE BER threshold has been exceeded.
Indicates an AIS (unframed all ones) pattern is being received or
transmitted at the H2TU-R DS1 input or output ports.
Indicates that no signal is detected at the DS1 input to the H2TU-R.
Causes a system alarm.
Indicates an RAI alarm (yellow) from the CPE with errors from the line
unit or network.
Upon reception of an RAI (yellow) from the CPE, the H2TU-R sends
RAI-CI towards the network if the network signal received at the H2TU-R
is clear. If the network signal is impaired (LOS, AIS, or LOF), then the
RAI is passed on to the network unaltered.
Accompanies the DBER, HBER, MAL, and LA alarm and indicates that
the alarm has occurred at the H2TU-C central office unit.
Accompanies the DBER, HBER, MAL, and LA alarm and indicates that
the alarm has occurred at the H2TU-R remote unit.
September 28, 2001
Front Panel
Continued
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