User's Manual

Install Upgrades and FRUs
Release 3.3 179
The two external FIM connections are for providing connectivity to NSUs.
Note that there are two T1/E1 links per NSU.
250 User System - Add Voice Mail Ports
250 user system (Release 3.0/3.1 chassis) upgrade to add support for 30 voice mail ports.
This system uses the following existing modules:
• One 300 MHz RTC
• One 300 MHz E2T
• One 64 Channel Echo Canceller
• One Dual FIM
• One DSP Module (21061/21161) for telecom support
Add the following module:
• One DSP Module (21161) for 30 Voice Mail Ports
This provides:
• 4 DSP devices (21061/21161) for telecom functions for up to 250 users
• 30 Voice Mail Ports
• 64 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: You may need to add a DSP resource to upgrade the 100 User System with any
of the following: 30 Voice Mail Ports, Peripheral cabinet, NSU, 6500 Speech Enabled
Applications. See your Mitel Networks Sales Engineer for more information.