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Chapter 25 — Fault locating and clearing
553-3121-210
Standard 3.0
January 1999
Symptom:
Cannot dial from 2500-type telephone
A user cannot dial from a 2500-type telephone. The condition may exist on
more than one telephone and may be intermittent. The telephone may
occasionally experience a “no dial tone” condition. Calls from other types of
sets are not affected. 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.
You may need to replace:
•
NTMW01 SSC card
•
Telephone
•
Wiring to the telephone
Possible cause
Action
Defective power
supply for add-on
module
If the add-on module requires a separate power supply, make sure it
is properly connected.
If there is still a telephone problem, go to the next possible cause.
Defective add-on
module
Replace the add-on module.
Defective data option
circuit card
If the fault is with a data add-on module, replace the data option circuit
card.
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 ...