Alarms - ADC HiGain HLU-200 User Manual

Alarms

A
LARMS
The alarms are detected and reported to the LITESPAN microprocessor
though the "Alarm" signal from the HLU microprocessor as shown in
3. They also cause the HDSL LED to flash red.
ALRM Message
ALRM LOSW
ALRM RLOS
ALRM TLOS
ALRM H1ES
ALRM H2ES
ALRM DS1
ALRM MAL1
ALRM MAL2
12
Table 3. Alarm LEDs
Indication
Either of the HDSL loops has lost sync.
Loss of the HRU DS1 input signal.
A user option that causes the loss of the HRU DS1
input from the CI to initiate a logic loopback state in
the HRU.
HDSL loop 1 has exceeded the 24-hour user-selected
Errored Seconds CRC threshold.
HDSL loop 2 has exceed the 24-hour user-selected
Errored Seconds CRC threshold.
The total number of bipolar violations (BPV) at the
HRU DS1 input has exceeded the 24-hour
user-selected threshold.
The margin on HDSL loop 1 has dropped below the
minimum threshold value set at the maintenance
terminal Margin Alarm Threshold option.
The margin on HDSL loop 2 has dropped below the
minimum threshold value set at the maintenance
terminal Margin Alarm Threshold option.
September 25, 1998
350-200-115-02, Issue 2
Table
HLU-200 List 1E