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Install Upgrades and FRUs
Release 3.3 181
This provides:
• 4 DSP devices (21061/21161) for telecom functions for up to 250 users
• 4 DSP devices (21161) for 32 channels of compression
• 32 Channels of Echo Cancellation
• 2 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 250 user system (Release 3.0/3.1 chassis):
1. Remove the cover.
2. Install the additional DSP Module (Slot 3).
3. Replace the cover.
250 User System - Add 32 Compression Channels and Voice Mail Ports
250 user system (Release 3.0/3.1 chassis) upgrade to add support for 32 compression channels
and 30 voice mail ports.
This system uses the following existing modules:
Note: Some controllers in release 3.0 had the DSP installed in Slot 6. This DSP should
be moved to Slot 8 before installing the compression DSP in Slot 3.