Card Reset; Background Audit - Nortel Enterprise 1000 Reference Manual

Page 192 of 236

Card reset

Background audit

553-3023-211 Standard 1.00 June 2001
NTBK51 Downloadable D-channel Handler daughterboard
If a forced download enable command is executed in LD 96, the MSDL base
code and application are forced down to the DDCH card, even if the base and
application software is already resident on the DDCH card. In order to
complete a forced download, the following conditions must be met:
• the DDCH card must be enabled
• the D-channel port must be disabled
After a card reset, the MSDL base code and the D-channel application
software are validated by the Succession CSE 1000 CPU. The software is
stored in flash EPROM on the DDCH card and does not have to be
downloaded. But if the software is missing due to new installation,
corruption, or loadware version mismatch, the CPU will automatically
download the base/application into the DDCH card.
If a background audit of the card and associated applications finds that a
download is required, the card is queued in the PSDL tree. Downloading is
performed in background mode based on the entries in the PSDL tree.