Nortel Networks 1000 - Manual (Page 834)

834 NTAK79 2.0 Mb PRI card
•
8031 microcontroller
• Card-LAN / echo / test port interface
The main functional blocks of the NTAK79 architecture include:
•
DS-30X interface
•
A07 signaling interface
• digital pad
• carrier interface
•
CEPT transceiver
•
SLIP control
• D-Channel support interface
•
8031 microcontroller
•
Card-LAN / echo / test port interface
A description of each block follows.
The main functional blocks of the NTAK79 architecture include:
•
DS-30X interface
• A07 signaling interface
• digital pad
•
carrier interface
•
CEPT transceiver
• SLIP control
•
D-channel support interface
•
8031 microcontroller
• Card-LAN / echo / test port interface
DS-30X interface
The NTAK79 interfaces to one DS-30X bus which contains 32
byte-interleaved timeslots operating at 2.56 Mb. Each timeslot contains 10
bits in A10 message format; eight are assigned to voice/data (64 kbps),
one to signaling (8 kbps), and one is a data valid bit (8 kbps).
The incoming serial bit stream is converted to 8-bit parallel bytes to be
directed to padding control.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.