Processors - Avaya Nortel Communication Server 1000 Reference

NTDW20 Media Gateway Extended Peripheral Equipment Controller card
• The MG XPEC registers to the call server as an IPMG type of MGX.
• Overlays accept, as input and print, an IPMG type of MGX for the MG XPEC in all
instances where it uses an IPMG type of MGC for the MGC.
There are no removable DSP daughter boards on the MG XPEC. One-hundred and ninety-
two DSP resources populate each board of the dual assembly. The software treats the DSP
resources as MGC DSP daughter boards. Therefore, from a software perspective, each board
of the dual assembly possesses two high density MGC DSP daughter boards.
When replacing the Extended Peripheral Equipment Controller (XPEC) card with the MG
XPEC, all equipment in the common equipment and network shelves are not used. The MG
XPEC communicates with the Call Server through the ELAN instead of the DS30Y TDM loops
used by the previous XPEC card.
To the Call Server, the MG XPEC appears as two separate IPMG loops.
Important:
The IPMG package must be enabled so that the Call Server can accept the IP media
gateway connections.

Processors

Chagall-2 Core
The MG XPEC utilizes a MindSpeed Chagall-2 Processor M82515 to execute Nortel software.
The Chagall-2 processor combines an ARM9 RISC processor (CSP) for user applications, a
second ARM9 RISC processor (MSP), and DSP resources for packet and media processing.
The Chagall-2 processor also provides a shared memory interface, an SDRAM controller,
UARTs and Ethernet interfaces.
DSP processors
Two on-board M82710 processors, as two High Density DSP DB (on-board), provide 192 DSP
Channels with media security. The MindSpeed Picasso processor (M82710) voice solution is
used.
602 Circuit Card Reference
Comments? infodev@avaya.com
July 2011