Instruction manual

Page 1104 of 3156 CLASS: Calling Number and Name Delivery
553-3001-306 Standard 10.00 January 2002
Meridian 1 multi-group network
This section is only relevant to a Meridian 1 multi-group network. A single
group Meridian 1 system does not have inter-group junctors. Therefore,
special engineering on junctor is not applicable. The Option 11C has a
network architecture different from the rest of Meridian 1 Options. It has a
non-blocking network and does not require any network engineering, except
to use Table 39 CMOD (Class MODem) capacity table to find the number of
modems needed.
In general, inter-group junctor blocking is most severe when there are only
two groups, since under typical traffic distribution assumptions, 50% of calls
will stay in the originating group and 50% will terminate on the second group
through junctors, unless a Community Of Interest (COI) is known and taken
into consideration in engineering to minimize inter-group traffic.
Under the assumption of even distribution of traffic, the percentage of traffic
to an inter-group junctor will drop to 33.3% of the total group traffic for a
three-group system. Similarly, the junctor traffic will be 25% of group traffic
for a four-group system and 20% for a five-group system.
A simplified Meridian 1 with two-group network and CLASS sets is shown
by Figure 30.