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Carrier Problems
Console Display/Instructions
Additional Information
PC
4 If you need assistance in interpreting the information displayed on the
screen, contact your technical support.
Clock Slot xx:
mm/dd/yy
hh:00-hh:mm
Admin as:
Active:
synch source:
PPM: xxx
Exit
Carrier Problems
Typical carrier problems include power supply failure, sudden failure of one or
more modules, or system problems that cannot be isolated to a specific
module. If you find a problem with the carrier, it must be replaced; carriers
cannot be repaired in the field.
Removing the Faulty Carrier
1 Remove the control unit housing.
If you need instructions, see “Removing the Control Unit Housing” in Chapter 1.
2 Backup system programming.
If you need instructions, see System Programming and Maintenance (SPM) (for
disk backups) or Appendix D, “Backing Up with a Memory Card.”
3 Power down the system by turning off the components listed below, in
the order given.
a Power supply on the basic carrier
b Power supply on each expansion carrier
c Auxiliary power units (if present)
4 Unplug the control unit from the AC outlet.
Control Unit Problems 4-85