Nortel 1000 Features And Services Fundamentals page 510

510 CLASS: Calling Number and Name Delivery
2. Example 2: Re-configuration required
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A two-group system serving a call center is expected to upgrade 300
analog sets (100 administrative sets and 200 agent sets) to CLASS
sets. The 100 administrative sets are located in group 0, where are also
located all incoming trunks. The 200 agent sets are in group 1, which
will continue to be used as agent sets after upgrading. Assume that
group 1 is also equipped with 500 non-CLASS sets. How many CMOD
units are needed to serve this application and does the customer need
to re-configure the switch (move sets and trunks between group 0 and
group 1) to do the CLASS feature upgrade?
Solution:
The table lookup indicates that 900 equivalent CLASS sets
(=100+200x4) need 17 CMOD units. Since one pack provides 32 units,
one XCMC pack is sufficient for this customer.
Group 1 is equipped with 200 agent CLASS sets or 800 equivalent
sets which is greater than the 100 sets in group 0, the pack should be
installed in group 1.
The total equipped ports in group 1 is 1300 (=200x4+500). For a 2-group
system, the second group is allowed to have 1760 sets (from
"Maximum CLASS sets per group (based on inter-group junctor capacity
limitation)" (page 503)) without junctor traffic concerns, therefore, there
is no need for the customer to re-configure the switch.
In addition, both "100 CLASS sets in a group without CMOD units (group
0)", and" 200 agent CLASS sets in a group separate from incoming
trunks (group 1)" statements are within engineering rules, therefore,
no re-configuration is necessary.
A similar application as in the last example, but there are 1600
non-CLASS sets in group 1.
Solution:
The same number of CMOD units (17) is required, since the number of
equivalent CLASS sets (900) in the system is the same.
Equip the 17 CMOD units in group 1, since the XCMC pack should be
equipped in the group with most CLASS (equivalent) sets.
The number of total equivalent sets in group 1 is 2400 (=1600+200x4)
which is greater than the 1760 threshold in
sets per group (based on inter-group junctor capacity limitation)" (page
503) for a two-group system.
The customer will have a number of alternatives to resolve the junctor
blocking issue, depending on the situation:
Nortel Communication Server 1000
Features and Services Fundamentals — Book 2 of 6 (C)
NN43001-106 02.04 Standard
Release 5.5 9 May 2008
Table 9
Table 9 "Maximum CLASS