Chapter 25 — Fault locating and clearing
Page 509 of 536
Option 11C Compact
Planning, Installation, Fault Clearing and CCBR Guide
Possible cause
Action
Defective trunk
equipment
Make sure the CO equipment or other trunk equipment is not
defective.
If there is no problem with this equipment, go to the next possible
cause.
Disabled or defective TN
Test the TN by entering
LD 30
UNTT c u
(“c u” represents card and unit numbers)
Test other TNs by entering
TEST
If the test fails, replace the indicated item and test again.
Defective trunk circuit
card
Hardware disable then re-enable the circuit card to initiate a
self-test.
If the test fails, replace the circuit card.
If the test passes, go to the next possible cause.
Defective wiring
At the main cross-connect terminal, disconnect the wiring to the
CO or other trunk equipment.
Enable the TN and wait for an OVD message. If you receive an
OVD message, repair or replace the wiring to the PE shelf.
If there is no OVD message, repair or replace the wiring from the
cross-connect terminal to the telephone.
If the trunk circuit card still will not enable or there is still a trunk
problem, reconnect the wiring and go to the next possible cause.
—continued—
Содержание Meridian Meridian 1
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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 ...