Chapter 25 — Fault locating and clearing
Page 531 of 536
Option 11C Compact
Planning, Installation, Fault Clearing and CCBR Guide
Possible cause
Action
Incorrectly
programmed
To determine the correct Class Of Service (CLS) use
LD 20
PRT
If CLS is DIP, change to DTN using
LD 10
Defective telephone
If only one telephone is affected, replace it.
If there is still a telephone problem, go to the next possible cause.
Defective PE circuit
card
Replace the affected circuit cards.
Enable the circuit card by entering
LD 32
ENLS s
(s represents the shelf number; 0 for the main cabinet, 1 for the
expansion cabinet.)
Test the circuit card by entering
LD 30
TEST
Defective wiring
If only one telephone is affected, make sure wiring is properly
connected and wires are not interchanged, crossed, or grounded
Check the wiring between the telephone and the cross-connect
terminal
Check the wiring between the PE shelf and the cross-connect
terminal
If there is a wiring problem, correct it.
If there is still a telephone problem, go to the next possible cause.
Defective Digitone
Receiver
If the condition is intermittent or more than one telephone is affected,
test the Digitone Receivers in the NTMW01 SSC card by entering
LD 34
DIS 0 and ENL 0
Replace the NTMW01 SSC if it fails the test.
If there is still a telephone problem, go to the next possible cause.
Excessive Digitone
traffic
Содержание Meridian Meridian 1
Страница 3: ...553 3121 210 Standard 3 0 January 1999 ...
Страница 17: ...xiv Contents 553 3121 210 Standard 3 0 January 1999 ...
Страница 89: ...Page 70 of 536 Chapter 6 Bracing cabinets against earthquakes 553 3121 210 Standard 3 0 January 1999 ...
Страница 97: ...Page 78 of 536 Chapter 8 Installing a new system 553 3121 210 Standard 3 0 January 1999 ...
Страница 107: ...Page 88 of 536 Chapter 10 Installing the system ground 553 3121 210 Standard 3 0 January 1999 ...
Страница 113: ...Page 94 of 536 Chapter 11 Installing the power supply 553 3121 210 Standard 3 0 January 1999 ...
Страница 125: ...Page 106 of 536 Chapter 12 Adding an expansion cabinet 553 3121 210 Standard 3 0 January 1999 ...
Страница 139: ...Page 120 of 536 Chapter 13 Installing the circuit cards 553 3121 210 Standard 3 0 January 1999 ...
Страница 157: ...Page 138 of 536 Chapter 15 Installing and connecting SDI and Ethernet ports 553 3121 210 Standard 3 0 January 1999 ...
Страница 175: ...Page 156 of 536 Chapter 16 Starting up and testing the system 553 3121 210 Standard 3 0 January 1999 ...
Страница 209: ...Page 190 of 536 Chapter 18 Connecting the trunks 553 3121 210 Standard 3 0 January 1999 ...
Страница 323: ...Page 304 of 536 Chapter 21 Installing Hospitality 553 3121 210 Standard 3 0 January 1999 ...
Страница 419: ...Page 400 of 536 Chapter 23 Pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 455: ...Page 436 of 536 Chapter 24 Changing pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 555: ...Page 536 of 536 Chapter 25 Fault locating and clearing 553 3121 210 Standard 3 0 January 1999 ...