2-12 Definitions
Terminal number assigning
Once the cards are assigned to the PE UEMs, the individual units on each
card can be assigned. Use Worksheet Q (at the end of this document) to
record the Terminal Number (TN) assignments. TN 0000 cannot be used on
superloop 0. Therefore, use loop 0 for Enhanced Network or
.
Conference/IDS Card to avoid wasting a port.
-
Ongoing assignment plan
Use the initial assignment records to complete an SL-1 System assignment
plan for each equipped network loop in the system. (See Worksheet R at
the end of this document). From this system loop profile, an assignment
plan can be developed for each loop. Assignments for future trunks,
multiple appearance group stations, consoles, and
Digitone
receiver
requirements can be developed for each loop according to the profile.
Cutover study
Once the system has been placed in service, a cutover study should be
undertaken. The results of this study are used to update the loop profiles
and create a new assignment plan. Ongoing assignments should follow the
new assignment plan until the first customer busy-season trunking study.
At that time loop threshold measurements are set so that at least one of the
predominant busy hours would produce a CCS load output.
---
Threshold study
From the threshold study printout the loop profile should be updated, and a
new assignment plan should be developed. At this time, it may be advisable
to estimate the system capacity for future growth. If the growth capacity is
sufficient to last beyond the next annual threshold study, assignments can
continue in accordance with the assignment plan. If the growth capacity is
not sufficient, plans should be made to establish a tentative date when new
equipment (loops or shelves) must be ordered and installed. This date
generally should be controlled by physical capacity and tracked by total
working physical terminations.
System engineering 553-3001-151