Instruction manual

Page 1108 of 3156 CLASS: Calling Number and Name Delivery
553-3001-306 Standard 10.00 January 2002
Table 38
Meridian 1 maximum CLASS sets per group (based on inter-group
junctor capacity limitation)
Note: Convert a trunk or an agent set to four equivalent sets before
applying Table 38.
A single group system can have as many CLASS sets as each loop allows.
The engineering of Meridian 1 is not different from that of non-CLASS sets,
since there is no inter-group junctor involved. The only engineering required
is to find the required number of CMOD units from Table 39 to serve a given
number of CLASS sets.
Note that the capacity per group for multigroup systems assumes no trunking
in that particular group (or trunks have been converted to equivalent sets).
Therefore, the total system capacity, by taking into account trunks, agent sets
and service circuits, will not be as large as a straight multiple of number of
groups by the number of sets per group.
The number of allowed CLASS sets per group in Table 38 is strictly a
function of inter-group traffic (except for five-group systems). When a
system becomes five-group, the junctor capacity is no longer a bottleneck
under the assumption of even traffic distribution. The system capacity will
become unrealistic if it is purely based on the inter-group junctor capacity,
therefore, other system resources, particularly the system CPU, need to be
checked. The number 4080 is based on loop traffic (28 loops/7 superloops),
not junctor capacity.
No. of Groups Sets/Group
2 1760
3 2933
4 3520
5 4080