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Introduction to Meridian Mail Option 11 EC 1-3
EC 11 overview
Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999
EC 11 overview
Introduction
Nortel Networks builds the EC 11 system for clients who
have a Meridian 1 Option 11 switch, and who need more than
the 12 Meridian Mail ports available through the Meridian
Mail Card Option system that can be built into the Option 11
switch.
The EC 11 is housed in a separate cabinet from the Option 11
switch. The EC 11 can accommodate two nodes in the same
cabinet. Each node has a separate CPU card and can handle
up to 24 voice mail ports for a total of 48 ports.
The EC 11 connects to an Option 11E or Option 11C switch
only. The associated Meridian 1 Option 11 switch can contain
as many as three MGate cards, which are used to connect the
voice channels from the switch to the EC 11 through the
Network Loop Interface (NLI) cables. Each MGate card can
handle up to 16 ports for a total of 48 ports from the Option
11 switch. The Meridian 1 Option 11 switch also has an SDI/
DCH card to connect the Application Module Link (AML)
cable from the switch to the EC 11.
The following cables connect the Meridian 1 Option 11
switch and the EC 11:
as many as three NLI cables for voice channels
one AML cable for signaling and control
Platform migration
and release
conversion
You can install the EC11 system as a new installation or as a
platform migration from an existing Card Option system to
the Option 11 EC. To migrate from a Card Option system to
an Option 11 EC system, follow the steps outlined in Chapter
12, “Migrating from a Card Option system,” in this manual.
Supported system
configurations
The EC 11 requires the Enhanced MMP40 or MMP40 CPU
card, one per node. A system can be a hybrid, consisting of
both Enhanced MMP40 and MMP40 CPU cards, in separate
nodes. The EC 11 cannot use any other CPU card, such as the
68K card. The EC 11 is a single cabinet system containing
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