Alarm Descriptions - ZyXEL Communications MSC1024G Series User Manual

Chapter 6 Alarm Screens

6.5 Alarm Descriptions

This table describes the alarms on the system. You can view the settings using the "alarm
tablelist" CLI command.
• "ALC" is the ADSL Line Card.
• "SLC" is the SHDSL Line Card.
• "VLC" is the VDSL Line Card.
• "IMA" is the IMA Line Card.
• "TCA" Stands for Threshold Crossed Alarm and indicates that an alarm profile threshold
was exceeded.
• "TDM" Stands for Time-Division Multiplex and indicates an E1 physical alarm. See
Application
• An "X" means that the alarm applies to the specific card.
• Atu-c or Vtu-c refers to the IES or the downstream channel (for traffic going from the IES
to the subscriber).
• Atu-r or Vtu-r refers to subscriber or the upstream channel (for traffic coming from the
subscriber to the IES).
Table 47 Alarm Descriptions
ALARM
DSL
LINE_UP
LINE_DOWN
LINE_LDM_START
LINE_LDM_END
LINE_PM_L2
LINE_PM_L0
LINE_FAIL
ADSL_TCA_LOL
ADSL_TCA_LOF
ADSL_TCA_LOS
ADSL_TCA_LPR
150
on page 45.
SEVERITY MSC ALC SLC VLC VOP IMA DESCRIPTION
INFO X X
MINOR X X
INFO X
INFO X
INFO X
INFO X
MAJOR X X
INFO X
INFO X
INFO X
INFO X
The line is up.
The line is down.
The line entered loop diagnosis
mode.
The loop diagnostics were OK
and the line left loop diagnosis
mode.
The line went into power down
L2 mode.
The line went into power down
L0 mode.
The line failed.
The Loss Of Link seconds
(<value>) within 15 minutes for
the atu(c or r) has reached the
threshold (<value>).
The Loss Of Frame seconds
(<value>) within 15 minutes for
the atu(c or r) has reached the
threshold (<value>).
The Loss Of Signal seconds
(<value>) within 15 minutes for
the atu(c or r) has reached the
threshold (<value>).
The Loss of Power (<value>) of
15-minute interval of the atu(c or
r) reaches threshold (<value>)
MSC1000G/1024G/1224G Series User's Guide
IMA