Nortel Meridian 1 Manual page 181

Figure 73
Option 81 dual CPU, multiple network group configuration
Net group 4
Shelf 1
Net group 4
Shelf 0
Optional location for
InterGroup Module
Net group 3
Shelf 1
Net group 3 Net group 1
Shelf 0
Net group 2 Net group 1
Shelf 1
Net group 2
Core 1
Shelf 0
There are two ports on each CNI card. However, if only one CNI card is
equipped, only one network group is supported. This is because the CNI card
must be installed in slot 8 in the Core Module, and Port 0 is dedicated to
"group 5." Only Port 1 is available to support a network switching group.
Therefore, to support two network groups, two CNI cards are required. To
support three network groups, still only two CNI cards are required, because
one port is available in slot 8 and two ports are available on the second CNI
card.
Cabling common equipment
InterGroup
Module
Net group 0
Shelf 1 Shelf 1
Net group 0
Shelf 0 Shelf 0
Core 0
Page 143 of 500
IPE expansion
IPE
IPE
IPE
IPE
553-7451
System installation procedures
553-7451