Nortel Networks Circuit Card User Manual
Page 724 of 906
NTAK10 2.0 Mb DTI card
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per-channel and all-channel loopback capabilities for near-end and
far-end
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:
firmware, and are switch-accessed. These are:
•
transmission and reception of alarm indication signaling (AIS) in TS16
such as card disabled and warm SYSLOAD
such as card disabled and warm SYSLOAD
•
France-specific PPM counting
•
decadic dialing
•
France-specific alarm report and error handling
Architecture
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
DS-30X 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).
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).