Chapter 25 — Fault locating and clearing
Page 525 of 536
Option 11C Compact
Planning, Installation, Fault Clearing and CCBR Guide
Symptom:
Noise or low volume on all calls
There is noise on the line on all calls or the volume is lower than usual on all
calls. 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:
•
Peripheral Equipment (PE) circuit card
•
Telephone
Defective PE circuit
card
Software disable the telephone TN by entering
LD 32
DISU c u
(“c u” represents card and unit number)
Disconnect the wiring between the PE circuit card and the
cross-connect terminal.
Re-enable and test the TN by entering
ENLU c u
Wait for an OVD message. If you receive a message indicating a
problem with the circuit card or unit, replace the circuit card.
If you do not receive a message indicating a problem with the circuit
card or unit, reconnect the wiring and go to the next possible cause.
Defective wiring to
telephone
Make sure wiring is properly connected and wires are not
interchanged, crossed, or grounded.
Check the wiring between the telephone and the cross-connect
terminal.
Check the wiring between the PE shelf and the cross-connect
terminal.
If there is a wiring problem, correct it.
Possible cause
Action
Summary of Contents for Meridian Meridian 1
Page 3: ...553 3121 210 Standard 3 0 January 1999 ...
Page 17: ...xiv Contents 553 3121 210 Standard 3 0 January 1999 ...
Page 97: ...Page 78 of 536 Chapter 8 Installing a new system 553 3121 210 Standard 3 0 January 1999 ...
Page 107: ...Page 88 of 536 Chapter 10 Installing the system ground 553 3121 210 Standard 3 0 January 1999 ...
Page 113: ...Page 94 of 536 Chapter 11 Installing the power supply 553 3121 210 Standard 3 0 January 1999 ...
Page 125: ...Page 106 of 536 Chapter 12 Adding an expansion cabinet 553 3121 210 Standard 3 0 January 1999 ...
Page 209: ...Page 190 of 536 Chapter 18 Connecting the trunks 553 3121 210 Standard 3 0 January 1999 ...
Page 323: ...Page 304 of 536 Chapter 21 Installing Hospitality 553 3121 210 Standard 3 0 January 1999 ...
Page 419: ...Page 400 of 536 Chapter 23 Pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Page 555: ...Page 536 of 536 Chapter 25 Fault locating and clearing 553 3121 210 Standard 3 0 January 1999 ...