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ADC Release 3.1 User Manual

Page 474

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1152700

Issue 1

February 2001

Section 2 Operations and Maintenance

Page 2-430
© 2000, ADC Telecommunications, Inc.

TAP-100

Page 11 of 23

Table 4-1. Alarm Identifications, continued

ALARM
MESSAGE

SEVERITY

IMPACT

DESCRIPTION

SUGGESTED COURSE OF ACTION

Line
Errored
Seconds
Threshold
Crossing
Alert

LESTca

Information
al Alert

Service
Degradation

A one second interval in
the transmission from the
far end originating NE has
had an error at the line
layer causing an Errored
Second Line (ESL). ESL
errors have exceeded the
user definable threshold
level.

Check input from Customer
premise Equipment (CPE)
(signal level and pulse mask).

Login
Failure
Threshold
Crossing
Alert

FailedLogin
Tca

Information
al Alert

Not Service
Affecting.

A user has entered the
wrong information to gain
access in excess of user
defined thresholds.

Administrator should check
user name and password or
verify personnel authorization
to access system.

Loss of
Cell
Delineation

LCD

Critical /

Major on
RIC

Service
Outage
except for
RIC cards.

System unable to determine
or delineate between
incoming cells.

Reset SC cards at shelf.
Replace if necessary. See
Section 6 of this manual for
warranty and return
authorization information.

Loss of
Frame

LOF

Critical

Major on
RIC

Service
Outage
except for
RIC cards.

T3 frame cannot be
obtained or synced to.

Retrieve facility configuration
and check framing. Verify it
matches CPE transmission.

Loss of
Pointer
Path

LOP-P

Critical

Major on
RIC

Service
Outage
except for
RIC cards.

Card cannot locate the
payload due to a loss of
pointer at the path layer.

Retrieve SONET facility
configuration and check the
clock source.

Loss of
Signal

LOS

Critical

Major on
RIC

Service
Outage
except for
RIC cards.

No input signal is being
provided.

Check input connections and
transmitting equipment.

Loss of
Sync

Minor

Service
Affecting

Applies to all SONET cards.

Mode
Mismatch

ModeMism
atch

Minor

Installation
Error

Protection mode received
in K1 and K2 bytes does
not match configured
mode. SONET interfaces
only.

Check each facility and verify
the protection modes match
(i.e., unidirectional versus bi-
directional or 1:N versus 1+1).

(continued)