1152700Issue 1 February 2001 Section 2 Operations and Maintenance

TAP-100

Page 4 of 23

Table 4-1. Alarm Identifications, continued

ALARM MESSAGE

C-bit

Coding

Violations

Threshold

Crossing

Alert

CCVTca

C-bit

Errored

Seconds

Threshold

Crossing

Alert

CESTca

C-bit

Severely

Errored

Seconds

Threshold

Crossing

Alert

CSESTca

 

SEVERITY

 

IMPACT

 

 

 

 

 

 

 

 

 

Information

 

Service

 

al Alert

 

Degradation

 

 

 

 

Information

Service

al Alert

Degradation

 

 

Information

Service

al Alert

Degradation

 

 

 

DESCRIPTION

SUGGESTED COURSE OF ACTION

 

 

 

 

 

 

 

T3 C-bit coding violations

System is most likely

 

threshold crossing alert.

experiencing a line condition

 

 

deterioration. Check signal

 

 

level and pulse mask at input.

 

 

Also verify LBO setting at

 

 

CPE end.

 

 

 

 

T3 C-bit errored seconds

System is most likely

 

threshold crossing alert.

experiencing a line condition

 

 

deterioration. Check signal

 

 

level and pulse mask at input.

 

 

Also verify LBO setting at

 

 

CPE end.

 

T3 C-bit severely errored

 

 

System is most likely

 

seconds threshold crossing

experiencing a line condition

 

alert. Port in alarm has

deterioration. Check signal

 

received excessive errored

level and pulse mask at input.

 

seconds beyond user

Also verify LBO setting at

 

specified threshold.

CPE end.

 

 

 

Cellbus

Parity

Threshold

Crossing

Alert

CellbusPari tyTca

Channel Mismatch

ChannelMis match

Major –

Not service

currently an

affecting.

information

 

al alert.

 

 

 

Minor

Installation

 

Error

 

 

Parity errors on the cell bus have exceeded the user definable threshold level.

Channel number mismatch in the SONET K1 and K2 byte. Informs user that the facilities fibers are not installed properly.

Very likely the backplane bus is bad. Shelf may need to be replaced.

Verify working and protect fibers are not crossed, and/or proper connectivity to EPS shelves.

(continued)

Page 2-423

© 2000, ADC Telecommunications, Inc.

Page 467
Image 467
ADC Release 3.1 user manual Bit Coding Violations Threshold Crossing Alert, Bit Errored Seconds Threshold Crossing Alert