Control Unit Diagram-Module Placement - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Planning Module Placement
Control Unit Diagram—Module Placement
This section describes how to use the Control Unit Diagram on Form 1 (page 2)
to map placement of the modules according to certain guidelines. Figure 2 1
provides an example of a Control Unit Diagram for a system with 32 lines/trunks
and 52 extensions. In addition, this section describes how to identify each jack
on each module with respect to type (line/trunk or extension) and its associated
logical ID. Each physical jack on the control unit is numbered sequentially from
bottom to top and left to right with logical IDs as follows:
Extension jacks are numbered from 1 to 200.
Line/trunk jacks are numbered from 1 to 80.
This sequence of logical IDs is the basis for connecting components to the
control unit, as well as for the assignment of extension numbers and line/trunk
numbers.
Planning Form Instructions
NOTE:
The Unit Load blocks above the diagram are reserved for equipment changes
or maintenance. A technician computes these values manually.
1. On the Control Unit Diagram of Form 1 (page 2), record the type of
module to be installed in each slot by writing the module name (for
example,
following guidelines:
Indicate the power supply module in the far left slot of each carrier.
Indicate the processor module in Slot 00 of the basic carrier.
Indicate line/trunk and extension modules in any order in Slots 01
through 17, with the following conditions:
— Group the modules in each carrier from left to right with no empty
— (Hybrid/PBX mode only) If the system includes a Queued Call
— (All modes) Current 012, 008 OPT, and 016 modules have built-in
2–4
Control Unit Configuration
008 MLX ) on the slanted lines at the top of each slot. Use the
slots between modules. (The system does not recognize modules
in slots that follow an empty slot; slots to the right of the last
module can be left empty.)
Console (QCC), the first line/trunk and/or extension module must
be a 408 GS/LS-MLX or 008 MLX module.
ring generators and are compatible with earlier releases. The 012
module [517G13 (28)] has a ring equivalency number (REN) of 2.2
and rings only 4 ports at a time, although 8 jacks can be used for
applications. The 016 module (517A34) has a REN of >= 4, can
ring 16 ports at a time, and has no restriction on the number of
jacks that can be used for applications.