Dsp Ii Mmc; Echo Canceller Module; Quad Copper Interface Module (Cim); Description - Mitel 3300 ICP Hardware Technical Reference Manual

F U R C M (AX, MX , CX II)
IELD PGRADEABLE AND EPLACEABLE ONTROLLER ODULES E I
C 2 3300 ICP C
HAPTER ONTROLLERS

DSP II MMC

The DSP II MMC is a high-density DSP resources card and has eight DSPs. Each DSP supports eight
channels of FAX Relay (T.38) or 16 channels of G.729a compression.

Echo Canceller Module

The Echo Canceller (EC) module provides echo cancellation on Ethernet to TDM (E2T) channels. Each
bi-directional E2T channel requires one bi-directional EC channel. The EC module is available in
64-channel and 128-channel versions.
The 100-user controllers have embedded echo cancellers and do not require EC modules. The MXe
Server ships with two 128-channel echo cancellers. The 250-user controller is shipped with one
64-channel EC module that will handle the full capacity of the system. The 700-user controllers require
128 channels of echo cancellation from either two 64-channel modules (if upgraded from 250 to
700-users) or one 128-channel module.
The AX controller uses DSP echo cancellers (40 channels in number) in its default configuration, but can
use the 128-channel module to increase capacity (hardware echo cancellers replace the DSP echo
cancellers). When the 128-channel module is installed, the echo canceller channels on the embedded
DSPs revert to telecom resource use.
The CXi II controllers do not use the echo canceller modules.

Quad Copper Interface Module (CIM)

Description

The 3300 ICP controller, with 3300 Release 7.1 or later software, supports the Quad CIM MMC for
connection to an Analog Services Unit, Universal ASU, or ASU II. One or two (only one on the CXi II) Quad
CIMs can be installed in any 3300 ICP controller (except on the AX and MXe Server) to provide for
connection to a maximum of 12 ASUs, with the exception of the CXi II controllers, which will support only
the first 3 ports of the Quad CIM module.
: The MXe Server has 4 CIM ports, but they are not operational. The LEDs will continue to flash.
NOTE
Quad Copper Interface Module (CIM)
Figure 2.10:
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