Nortel Meridian 1 Manual page 64

Page 50 of 190 Clearing common equipment faults
Possible cause
Defective FDI card
or FDU
Sysload required
Defective CE card
Defective
backplane
553-3001-510 Standard 11.00 June 1999
Action
Unseat the FDU and FDI card, then reinstall them. Make sure the cable
between the FDU and FDI card is securely connected. If the system does
not recover, continue with this procedure.
If a disabled FDI card is indicated, make sure the data cartridge is
securely attached:
— Check the switch settings; if necessary, correct the switch settings.
— Try to enable the FDI card (try to software disable, hardware disable,
then reenable).
— If you cannot load a program or the FDI is still disabled, replace it.
— If necessary, replace the data cartridge.
If a disabled FDU is indicated:
— replace it
— if the FDU is still disabled, replace the cable between the FDU and
FDI card
If the system does not recover, go to the next possible cause.
Press the reload (reset) button on the CPU card.
If a sysload (reload) occurs, check all fault indicators and clear any faults
indicated.
If the system will not sysload, go to the next possible cause.
Unseat the cards, then reinstall them. If the system does not recover,
check the CPU card:
— Make sure the ROM card is properly installed on the CPU card.
— Replace the ICPU card.
— If necessary, replace the ROM card.
If the system will not sysload, replace the memory/peripheral signaling
card.
If the system does not recover, go to the next possible cause.
Replace the card cage assembly in the module.