Actelis Networks ML700 - HSL Alarms Troubleshooting

Appendix F - Alarms Troubleshooting
ML700 User Manual F-9
Condition Type
Description
Recommended Troubleshooting Procedure
HSLFLT
HSL is faulty;
High Speed Link has failed and cannot
be recovered automatically due to one
of the following:
 The copper pairs are disconnected;
 Linked by HSL Actelis system is
faulty.
Applicable on HSL configured in -O
(Office) mode.
 Check the copper pairs connection. See the
table for possible causes;
 If problem is not resolved, check if linked by
HSL ML device is powered up, correctly installed
(copper loop connections), not alarmed and
MLP and HSL are configured properly;
 If problem is not resolved, replace linked ML
device.
LOWBWDS/
LOWBWUS
Configured HSL BW Threshold is
crossed, for US and DS separately. By
factory default, HSL BW threshold is
disabled.
Applicable on HSL configured in -O
(Office) mode.
To avoid LOWBWDS/US alarm: Disable Threshold
control or reduce Threshold value in accordance with
available HSL BW.
To resolve insufficient available HSL BW,
troubleshoot Modem Ports (repair/replace/add) and
then re-calibrate HSL.
NOTRFC
Applicable on ML700-O model HSL-
AID only.
No Traffic; Alarm raised if there are
some quarantined modems and all
Non-quarantined modems have failed.
NOTRFC is raised unconditionally SA
(service affecting), by default NA.
Differently from HSLFLT which require technician
involvement in copper lines/equipment repairing,
NOTRFC alarm indicates temporary operational
state, which most likely will be automatically
resolved (quarantined modem will be automatically
released for HSL operation).