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

LTPH-UM-1109-01, 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 second four-character message that modifies
the first message with a value or current configuration setting.
Message Full Name
SYSTEM 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
LRAI Line RAI
MAL Margin Alarm
PWR FEED GND Ground
PWR FEED OPEN Open
PWR FEED SHRT 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
TUC Transmission Unit Central Office
TUR Transmission Unit Remote End
LOOPBACK MESSAGES
CLOC Customer Local Loopback
COLB Central Office Loopback
CREM Customer Remote Loopback
NLOC Network Local Loopback
H2TU-C-231 List 2
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.
Indicates an RAI alarm (yellow) from the CPE with an error-free signal
from the line unit or network. RAI signal is transmitted towards the
network.
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 an (unframed all ones) pattern is being received at the
H2TU-R DS1 input port.
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.
Accompanies the HBER, MAL, and LA alarm and indicates that the alarm
has occurred at the H2TU-C central office unit.
Accompanies the HBER, MAL, and LA alarm and indicates that the alarm
has occurred at the H2TU-R remote unit.
Signal from customer is looped back to the customer at the H2TU-R.
Dual loopback at the H2TU-C.
Signal from customer is looped back to the customer at H2TU-C-231.
DSX-1 signal is looped back to the network at the H2TU-C.
January 9, 2002
Front Panel
Continued
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