Specifications

General Information Guide
44
Echo Cancellation Module
The Echo Canceller (EC) module provides echo cancellation on E2T channels. Each
bi-directional E2T channel requires one bi-directional EC channel. The EC module provides
128 EC channels.
Analog Support
You can add analog support to a controller with an Analog Services Unit II, Analog Main Board,
or Analog Options Board. The following table summarizes the analog support for each controller
type.
Quad Copper Interface Module (CIM)
A Quad CIM MMC provides four CIM ports that allow you to connect ASU IIs to the following
3300 ICP controllers:
• CX II / CXi II Controllers support one Quad CIM module. Only the first three ports on the
Quad CIM are functional, the fourth is not supported. Therefore, you can only connect up
to three ASU IIs.
• The MXe III Controller has four embedded CIM ports allowing the connection of up to four
ASU IIs. You can add up to two Quad CIM MMCs to increase the number of supported ASU
IIs to 12.
The CIM ports require standard 8-pin modular jacks (RJ-45) consisting of 2 balanced signal
pairs on Unshielded Twisted Pair (UTP) crossover cable. The CIM supports a distance of up
to 100 feet or 30 meters between the controller and the ASU II.
Analog Services Unit II
The ASU II platform delivers analog trunks and extension services to all markets. It comprises
a chassis with two card slots. Depending on how you configure the unit with line cards, the ASU
II chassis can support up to 48 ONS phones and up to eight LS trunks.
Two card variants (both hot-swappable) are available to support analog phones and trunks:
Table 1: Analog Support
Controller Quad CIMs ASU IIs
Analog Main
Board
Analog Option
Board
CX II / CXi II 1 3 with one Quad CIM installed 1 1 (optional)
AX 0 Not supported
MXe II 2 4 without any Quad CIMs installed
8 with one Quad CIM installed
12 with two Quad CIMs installed
1 Not supported
ISS VMCD 0 Not supported