Nortel Meridian 1 Manual page 89

Possible cause
Defective FDI,
MSI, or EMSI card
(lit LED)
Defective SDI
Clearing common equipment faults
Action
Unseat the FDI, MSI, or EMSI card, then reinstall it. If the card does not
recover, continue with this procedure.
Make sure the cable between the mass storage unit and the interface
card is securely connected.
Check the card by entering:
LD 37
MSI 0
— If the card is disabled, try to enable it (software disable, hardware
disable, then try to reenable).
— If the card will not enable, check switch settings; if necessary, correct
the switch settings and try to enable.
— If the card will not enable, replace the card.
If the CPU is still faulty, go to the next possible cause.
Check each SDI port by entering:
LD 37
STAT TTY
— If software is disabled, try to enable it (software disable, hardware
disable, then reenable).
— If the card will not enable, replace it.
If the CPU is still faulty, go to the next possible cause.
(continued)
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Meridian 1 Fault clearing