Chapter 25 — Fault locating and clearing
Page 479 of 536
Option 11C Compact
Planning, Installation, Fault Clearing and CCBR Guide
Symptom:
Fault indicated on the Tone and Digit Switch
The red LED is lit on the CPU circuit card, or a Tone and Digit Switch fault
is indicated. 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 the
NTMW01
SSC card.
Possible cause
Action
Defective Tone and
Digit Switch circuitry
Test the Tone and Digit Switch and (Digitone Receiver) on the
NTMW01 SSC card by entering
LD 34
DISX 0
and then
ENLX 0
finally
STAT 0.
If the Digitone Receiver fails the test, replace the NTMW01 SSC
card.
Note: Reuse all daughter boards installed on the original NTMW01
SSC card. Call processing on the entire system will be interrupted
while the NTMW01 SSC card is being replaced.
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 ...