Additional maintenance procedures
Removing and restoring power
394
Maintenance Procedures
December 2003
The system is ready for power off when the green “OK Remove” LED light on the TN2314
processor circuit pack appears. (This takes about 3 minutes.)
2
Unplug the power cord, or
Disengage the latch on the power supply and pull it from its slot so that the backplane pins are not
connected.
Hardware shutdown
Graceful shutdown
You will need a pen or small screwdriver for these procedures.
1
Using a small tool, press the recessed shutdown button until the “Complete” LED starts to flash
on the TN2314 processor circuit pack.
The system will perform a graceful shutdown.
The system is ready for power off or removing the TN2314 circuit pack after the “Complete”
LED goes to a steady green.
2
Unplug the power cord, or
Disengage the latch on the power supply and pull it from its slot so that the backplane pins are not
connected.
The procedure for an immediate hardware shutdown (unplugging the system) is not recommended.
Replacing the power supply
!
WARNING:
Ensure that the power is OFF before proceeding.
1
Pull on the latch for the 650A Power Supply.
2
Replace the power supply and secure the latch.
NOTE:
You will have to adjust the neon voltage after replacing the power supply. See
on page 395 for more information.
Restoring power
The procedures you need to restore power depend on the system configuration. Before performing these
activities, refer to the appropriate procedure. Restore power as follows:
1
Plug in power cords in port cabinets first.
2
The system now goes through the rebooting process. This process takes about 3 minutes. LEDs
will go through their power-up sequence. See
in Maintenance Alarms
Reference (555-245-102).
3
The system has finished booting when the EM XFER (emergency transfer) LED goes off.
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...