Page 514 of 536
Chapter 25 — Fault locating and clearing
553-3121-210
Standard 3.0
January 1999
Symptom:
Console cannot make or receive calls (no OVD message)
The attendant console cannot make or receive calls. There is no OVD
message. There may be other system messages indicating the TN for this
console is defective or has been disabled. 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 messages as you perform this procedure.
Possible cause
Action
No power to console
Check the power supply and wiring to see that the console is
powered up.
If there is a power supply problem, correct it.
If there is no power problem, go to the next possible cause.
Defective console
Test the console by entering
LD 31
(See the
Option 11C Compact software guide for information on
testing consoles with LD 31.)
If the console fails the test, replace it.
If the console passes the test, go to the next possible cause.
—continued—
Console connected to
wrong TNs
Check the cross-connect terminal to make sure the console is
connected to the correct TNs.
If the console is not connected correctly, fix the wiring.
If the console is connected correctly, go to the next possible
cause.
Defective wiring
Make sure wiring is properly connected and wires are not
interchanged, crossed, or grounded
Check the wiring between the console and the cross-connect
terminal
Check the wiring between the Peripheral Equipment shelf and the
cross-connect terminal
If there is a wiring problem, correct it.
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 ...