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HCD-E1 Installation & Operation Manual Chapter 5 - Troubleshooting and Diagnostics
01/01/01 08:15 Status Indications and Alarms 5-11
Table 5-2 HCD-E1 Alarm Buffer Messages (Cont.)
Alarm Message Alarm
Number
Cause Corrective Actions Alarm
Type
HRPT_NTU SYNC LOSS:LP1
HRPT_NTU SYNC LOSS:LP2
04 Loss of synchronization on the
specified HDSL line at the NTU
side of H-RPT.
1. Check the corresponding HDSL line.
2. Perform a self-test on the unit configured as central and
replace the unit if it fails the self-test.
3. Replace H-RPT.
ON/OFF
HRPT_SELF TEST ERROR 05 A problem has been detected
during the cyclic H-RPT self-test.
Replace H-RPT. ON
HRPT_LTU CRC ALM: LP1
HRPT_LTU CRC ALM: LP2
06 A CRC-6 error has been detected
in the input signal of the specified
HDSL line.
If the number of CRC-6 errors is significant (more than a few
errors per hour), perform the following:
1. Check the appropriate HDSL line from the H-RPT to the
unit configured as remote.
2. Perform a self-test on the unit configured as remote and
replace the unit if it fails the self-test.
3. Replace H-RPT.
ON
HRPT_NTU CRC ALM: LP1
HRPT_NTU CRC ALM: LP2
07 A CRC-6 error has been detected
in the input signal of the specified
HDSL line.
If the number of CRC-6 errors is significant (more than a few
errors per hour), perform the following:
1. Check the HDSL lines to the remote unit.
2. Perform a self-test on the unit configured as central and
replace the unit if it fails the self-test.
3. Replace H-RPT.
ON
HRPT ALARM BUFFER OVERFLOW 08 More than 100 alarms entries
have been written in the H-RPT
alarm buffer since the last clear
command. New alarms are
overwriting the older alarms.
Read the messages and then clear the buffer by sending the
CLR ALM HRPT/A command from the control terminal.
ON/OFF
.