Instruction manual

Page 1116 of 3156 CLASS: Calling Number and Name Delivery
553-3001-306 Standard 10.00 January 2002
8 If the number of equivalent set is greater than the threshold, one or all of
the following engineering rules should be followed to reduce junctor
traffic:
a Move sets (CLASS or non-CLASS) or trunks to another group to
satisfy the above engineering rules.
b Equip XCMC pack in more than one group to serve local CLASS set
traffic.
9 When a trunk route is known to serve only agent sets, and these trunks
and agent sets are in the same group, exclude them from the set count in
Table 38 threshold (e.g., do not include trunks and agent sets with known
COI to use Table 38; they do not generate traffic to junctors).
The following examples will show some of the engineering details of dealing
with various alternatives.
To simplify discussion, the network group with most trunks is called group 0,
consequently, a majority of CLASS sets, if not all, are in group 1. If most
agent CLASS sets and XCMC pack are in group 0, there will ne no need for
further engineering.
Engineering Examples
One XCMC pack serving a single group system
No special engineering rule is needed for a single group system. Look up
Table 39 to find the required number of CMOD units to serve the given
CLASS sets. For example, to serve an Option 61C with 300 agent CLASS
sets, use Table 39 to find the CMOD units that can serve 1200 equivalent sets
(=300x4). The result is 20 units.