Lucent Technologies MERLIN LEGEND 6 - Manual (Page 348)

MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Troubleshooting the System
Page 8-2 All Phones Are Dead (No Dial Tone or Lights)
8
CAUTION:
!
If you must check something on the control unit, proceed with caution. Avoid
standing on a box or chair to reach the unit if it is installed out of easy reach.
If you do not have a stable ladder or other proper equipment, do not
proceed; wait for the Lucent Technologies technician.
NOTES:
1. If power to the system is cut off, the system retains its programming for
4 to 5 days after it stops receiving power. Then all of the system’s
programmed settings may return to the factory settings.
2. Be sure to change the system time appropriately when Daylight
Savings Time starts and when it ends. System time affects the
functioning of several system features, including Automatic Backup,
Night Service, Station Message Detail Recording (SMDR) reports,
standalone auto attendant systems, voice mail, and Reminder Service.
3. For information about removing the control unit housing, see
Appendix E.
All Phones Are Dead
(No Dial Tone or Lights)
8
Possible Cause 1: The control unit is not receiving power.
WARNING:
!
To check the power cord on the control unit as instructed in the following
procedure, avoid standing on a box or chair to reach the unit if it is out of
easy reach. If you do not have a stable ladder or other proper equipment, do
not proceed; wait for the Lucent Technologies technician.
What to do: Make sure the control unit’s power cord is plugged securely into the
wall outlet. Also, if convenient and safe to do so, make sure the other end of the
power cord is securely connected to the power supply in the control unit.
■ If all phones now have dial tone and lights, you have solved the problem.
■ If all phones are still dead, go to Possible Cause 2.
Possible Cause 2: The power outlet to which the control unit is plugged in is
faulty.