System Renumbering - AT&T MERLIN LEGEND Release 2.0 System Programming Manual

Programming Procedures
S y s t e m R e n u m b e r i n g
The procedures in this section are used to assign the 2-digit, 3-digit, and Set
Up Space numbering plans.
NOTE:
System Renumbering is called Flexible Numbering in the MERLIN® II
Communications System. This is not the same as Board Renumbering, an
option used when modules in the control unit are changed.
Do not attempt to assign a numbering plan without Planning Forms 2a, System
Numbering-Station Jacks, 2b, System Numbering- Digital Adjuncts, and 2d,
System Numbering, Special Renumbers, Form 6a, Optional Operator Features,
is needed to assign a DSS Page button.
This section contains the following programming procedures:
Select System Numbering Plan
Single Renumbering
Block Renumbering
Direct Station Selector (DSS) Page Button Assignment
You select only one of the numbering plans (2-digit numbering, 3-digit
numbering, or Set Up Space numbering). In addition, you may need to perform
single and/or block renumbering. You do not need to assign DSS page buttons
unless the system programming console or one of the operator positions is
connected to a DSS. No matter which procedures you need to perform, assign
the numbering plan first, then do single and/or block renumbering, and finally,
assign DSS page buttons (if necessary).
Use the single renumbering procedure any time the extension numbers you are
changing from or to are not sequential.
Block renumbering is quicker, but you can use block renumbering only when
the extension numbers you are changing from and to are sequential.
When trunk or station modules are removed from the control unit, the remaining
modules must be rearranged so that no empty slots remain. The system does
not acknowledge any modules installed after an empty slot; therefore, if the
system is renumbered, extensions are not assigned to station jacks after the
empty slots.
Figures 3-1 through 3-3 show default extension numbers and numbers available
for renumbering in all three numbering plans.
3-22

System Renumbering