Nortel Circuit Card Installation Manual page 415

System disabled
When the system disables the MSDL card (step 4 in Figure 87 on
it continues to communicate and attempt maintenance procedures on the card.
To stop all system communication with the card, enter
it (step 5 in Figure 87 on
to enable the card, attempting recovery during the midnight routines (step 3
in Figure 87 on page
The system disables the MSDL if the card:
• exhibits an overload condition
• does not respond to system messages
• is removed
• resets itself
• encounters a fatal error
• is frequently system disabled and recovered
When an MSDL is system disabled, a substate indicates why the MSDL is
disabled. The substates are:
• Not Responding The system cannot communicate with the MSDL.
• Self-Testing The MSDL card is performing self-tests.
• Self-tests Passed The MSDL card successfully completed self-tests and
the system is determining if download is required or the software
downloading is complete.
• Self-tests Failed The MSDL card self-tests failed.
• Shared RAM Tests Failed The system failed to read/write to the MSDL
shared RAM.
• Overload The system received an excessive number of messages within
a specified time period.
• Reset Threshold The system detected more than four resets within
10 minutes.
• Fatal Error The MSDL card encountered a fatal condition from which
it cannot recover.
NT6D80 MSDL card
page 414). Otherwise, the system periodically tries
414).
Circuit Card
Page 415 of 906
page
to disable
DIS MSDL x
Description and Installation
414),