Owner's manual

Functional description 431
Control functions are provided by a microcontroller and a Card LAN link on
the digital line card. A sanity timer is provided to automatically reset the
card if the microcontroller stops functioning for any reason.
Microcontroller
The NT8D02 Digital Line card contains a microcontroller that controls the
internal operation of the card and the serial card LAN link to the controller
card. The microcontroller controls the following:
•
reporting to the Call Server through the card LAN link:
— card identification (card type, vintage, and serial number)
—
firmware version
—
self-test status
—
programmed configuration status
• receipt and implementation of card configuration:
—
programming of the digital line interfaces
—
enabling/disabling of individual units or entire card
—
programming of loop interface control circuits for administration of
line interface unit operation
—
maintenance diagnostics
The microcontroller also controls the front panel LED when the card is
enabled or disabled by instructions from the NT8D01 controller card.
The digital line card contains a microcontroller that controls the internal
operation of the card and the serial card LAN link to the controller card.
The microcontroller controls the following:
•
reporting to the CE CP through the card LAN link:
—
card identification (card type, vintage, and serial number)
—
firmware version
—
self-test status
— programmed configuration status
• receipt and implementation of card configuration:
— programming of the digital line interfaces
— enabling/disabling of individual units or entire card
— programming of loop interface control circuits for administration of
line interface unit operation
— maintenance diagnostics
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.