Front-Panel Display Messages - ADC HiGain H2TU-C-231 List 3F User Manual

LTPH-UM-1149-01
Table 2 lists the front-panel display messages. The four-character display reports the code of an alarm, loopback,
or diagnostic message and, in some cases, is followed by a second 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—TX RAI-CI
Indication - Customer Installation
at the H2TU-R (Net signal does not
have errors.)
SPNn Span Number
TUC Transmission Unit Central Office
TUR Transmission Unit Remote End
H2TU-C-231 List 3F
Table 2. Front-Panel Display Messages
Description
A system alarm has occurred, and has been retired to an ACO condition
by pressing the LBK 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
toward the network if the network signal received at the H2TU-R is clear. If
the network signal is impaired (LOS, AIS, or Loss of Frame [LOF]), then the
RAI is automatically passed on to the network.
Accompanies the LOSW alarm and identifies the span where the LOSW
alarm occurred.
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.
June 12, 2002
Front Panel
Continued
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