6-15
© Copyright 2006 Microwave Data Systems Inc. All Rights Reserved
User Interface Manual
MDS FIVE Series
05-4574A01, Rev. C
STM AU-
LOP x
IDU
The SDH/SONET Mux/
Demux has detected an
Loss of Pointer Defect at
the AU Level. Fault
detection via polling of
AU_LOP_T bit in STM-1
Core. Where ‘x’ is the HP
index. Alternate detection
via Interrupt enabled in
STM-1 core.
N/A
Solid
Critical
STM HP-
UNEQ x
IDU
The SDH/SONET Mux/
Demux HP number ‘x’ is
Unequipped. Fault
detection via polling of
HP_UNEQ_T bit in STM-
1 Core. Where ‘x’ is the
HP index. Alternate
detection via Interrupt
enabled in STM-1 core.
N/A
Solid
Major
STM HP-
TIM x
IDU
The SDH/SONET Mux/
Demux HP number ‘x’
has a Trace Identifier
Mismatch. Fault detection
via polling of
HP_TM_TIM_T bit in
STM-1 Core. Where ‘x’ is
the HP index. Alternate
detection via Interrupt
enabled in STM-1 core.
N/A
Solid
Major
STM HP-
REI x
IDU
The SDH/SONET Mux/
Demux HP number ‘x’
has a Remote Error
Indication. Fault detection
via polling of HP_REI_T
bit in STM-1 Core. Where
‘x’ is the HP index.
Alternate detection via
Interrupt enabled in STM-
1 core.
N/A
Solid
Major
Table 6-1
Alarm
Affected
Component
Description
LED to RED
Alarm
Code
Severity
