Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 313

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
6 Modifications
Adding to the System
2. On Form 1 (page 2), System Planning, review the completed Control Unit
Diagram and determine whether the module type needed is present. Do
one of the following:
3. Determine whether there are jacks available on the module for the new
line/trunk, auxiliary equipment, or telephone by referring to Form 2a,
System Numbering: Extension Jacks, or Form 2c, System Numbering:
Line/Trunk Jacks.
Do either of the following:
4. Plan the placement of the new module required to support the line/trunk,
auxiliary equipment, or telephone by reviewing the guidelines that follow
and deciding where the new module should be placed.
If the module is not in the control unit, skip to Step 4.
If the module type needed is already in the control unit, proceed to
Step 3.
If there are sufficient jacks available on an existing module, plan to
connect the added line/trunk, auxiliary equipment, or telephone to
them. Skip to Step 6.
If no jacks are available, proceed to Step 4.
The power supply module must be placed in the far left slot of each
carrier.
The processor module must be installed in Slot 0 of the basic carrier.
Line/trunk and/or extension modules can be placed in any order in
Slots 1 through 17 (with two expansion carriers), with the following
conditions:
— Install the modules in each carrier from left to right, with no
empty slots between modules.
— If the system includes a QCC, the 008 MLX, 408 GS/LS-MLX,
408 GS/LS-ID-MLX, or 016 MLX (Release 7.0 and later
systems) module that supports the QCC must be the first
extension module in the control unit.
— Place all older 008 OPT modules (Apparatus Codes
517A28–517C28) and 012 (T/R) modules (Apparatus Codes
from 517C13–517F13) in carriers with ring generators
installed in the power supply module. Current versions of
008 OPT modules (Apparatus Code 517D28), 012 (T/R)
modules [Apparatus Code 517G13(28)], and 016 (T/R)
modules (Apparatus Code 517A34) have built-in ring
generators and can be mixed in carriers with the older
modules that already have a generator in place. For Release
7.0 and later systems, the 412 LS/ETR and 016 ETR
modules have a REN of 3 and can ring all tip/ring ports at the
same time.
Issue 1
April 1999
6-3