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Chapter 25 — Fault locating and clearing
Page 521 of 536
Option 11C Compact
Planning, Installation, Fault Clearing and CCBR Guide
Symptom:
Telephone cannot make or receive calls (no OVD message)
The telephone cannot make or receive calls. There is no OVD message or
other system message indicating the TN for this telephone is defective or
disabled. There may or may not be dial tone when the handset is unhooked.
Look up all system messages in the Option 11C Compact software guide and
follow the instructions given. If the fault does not clear, use this procedure.
Constantly observe and look up system messages as you perform this
procedure.
Defective wiring
Disable the TN. Disconnect the wiring between the telephone and
the cross-connect terminal.
Re-enable the TN and wait for an OVD message.
If you do not receive an OVD message, replace or repair the wiring
between the telephone and the cross-connect terminal.
If you do not receive an OVD message, replace or repair the wiring
between the telephone and the cross-connect terminal.
If there is still a telephone problem, reconnect all wiring and go to
the next possible cause.
Defective backplane
Disable the TN. Unseat the affected PE circuit card.
Re-enable the TN and wait for an OVD message.
If you receive an OVD message, replace the cabinet.
Possible cause
Action
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 ...