Architecture - Nortel Circuit Card Installation Manual

Page 724 of 906

Architecture

DS-30X interface
553-3001-211 Standard 3.00
NTAK10 2.0 Mb DTI card
• per-channel and all-channel loopback capabilities for near-end and
far-end
• self-test
• download of incoming ABCD validation times from software
• warm SYSLOAD (TS16 AS16 transmitted)
Applicability to France
Features specific to DTI requirements for France are implemented in
firmware, and are switch-accessed. These are:
• transmission and reception of alarm indication signaling (AIS) in TS16
such as card disabled and warm SYSLOAD
• France-specific PPM counting
• decadic dialing
• France-specific alarm report and error handling
The main functional blocks of the NTAK10 card architecture include:
• DS-30X interface
• signaling interface
• three microprocessors
• digital pad
• Card-LAN interface
• carrier interface
• clock controller interface
The NTAK10 card interfaces to one DS-30X bus which contains
32 byte-interleaved timeslots operating at 2.56 Mb. Each timeslot contains
10 bits in a 10 message format; eight are assigned to voice/data (64 Kbps),
one to signaling (8 Kbps), and one is a data valid bit (8 Kbps).
August 2005