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Install Upgrades and FRUs
Release 3.3 191
• One 300 MHz E2T
• One 128 Channel Echo Canceller
•Two Dual FIMs
• Two DSP Modules (21061/21161) for telecom support
And the following module:
• One DSP Module (21161) for 32 compression channels
This provides:
• Eight DSP devices (21061/21161) for telecom functions for up to 700 users
• Four DSP devices (21161) for 32 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 add 32 compression channels to a 700 user system (Release 3.0/3.1 chassis):
1. Remove the cover.
2. Install the DSP Module (slot 3).
3. Replace the cover.
Note: You must purchase compression licenses. Refer to E2T Compression for
guidelines on meeting your compression requirements.