Nortel Networks 1000 - Manual (Page 898)

898 NTBK51 Downloadable D-channel Handler daughterboard
When new base or application software is installed on a CS 1000, the
download decision is made during system initialization. The actual MSDL
base software download is done in background mode and can take several
minutes to complete, depending on switch traffic and the size of the MSDL
base software.
Card enabling or application enabling
If a normal download enable command is executed, the MSDL base code
and application is conditionally downloaded to the DDCH card. This
conditional download depends on the result of the check made by the CPU
on the MSDL base code and application software.
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
If a normal download enable command is executed, the MSDL base code
and application are conditionally downloaded to the DDCH card. This
conditional download depends on the result of the check made by the
Option 11C CPU on the MSDL base code and application software.
If a forced download enable command is executed in maintenance 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
If a normal download enable command is executed, the MSDL base code
and application is conditionally downloaded to the DDCH card. This
conditional download depends on the result of the check made by the CS
1000 CPU on the MSDL base code and application software.
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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.