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Triple DS3/STS-1 I/O Front Module
Plexus 9000 Planning and Engineering Guide
Issue 2, March 26, 2004
Section 130-120-500
5-136
Telica,
Inc.
5.11.2.2 LEDs
Table 5.11-A. LEDs of Front Module
LEDs of FRONT IOM
LEDs Color
Description
FLT
Red
Indicates a local internal fault
ABN
Yellow
Indicates a remote fault or abnormal
condition. The light appears yellow
when:
•
An input has an incoming
failure; i.e., a Loss of Signal
(LOS).
•
A port is in loopback.
Green
On
Indicates that the module has been
equipped for service. See Note.
ACT
Green
Blinking
Indicates that the module is ready
and in standby mode.
Note:
For some software versions, when a protected
IOM fails, the first IOM to fail will switch to protection
and its FLT LED will be solid red and the ACT LED will
be flashing green. The second IOM to fail cannot switch
and only its FLT LED will illuminate.
P485-AA
07-19-01
FRONT
CARD
TRIPLE
DS3
STS-1
I/O
FLT
ABN
ACT