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3300 ICP Hardware User Guide
190 Release 3.3
• 64 channels of compression
• 30 Voice Mail Ports
• 128 channels of Echo Cancellation
• Four External FIM connections
• Four ASU connections (CIM ports)
The four external FIM connections are for providing connectivity for up to four Peripheral Units
or up to eight NSUs.
Note that there are two T1/E1 links per NSU.
To upgrade a 250 user system to a 700 user system with 64 channels of compression:
1. Remove the cover.
2. Install the new Dual FIM Modules (slot 2).
3. Install the new 21161 DSP Modules (slot 7, slot 4, and slot 3).
4. Install the 64 Echo Canceller Module (slot 6).
5. Replace the cover.
700 User System - Add 32 Compression Channels
700 User System (Release 3.0/3.1 chassis) upgrade to add support for 32 compression
channels.
This system uses the following existing modules:
• One 300 MHz RTC