Designing The Mdf; Table 7-4. Type-2 Frame Ordering Information - Avaya 6424D+M User Manual

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105 689 491
105 689 483
105 730 212
105 730 113

DESIGNING THE MDF

Designing the MDF is a two-step process. First, determine the size of the MDF. Second, construct the
MDF. As you proceed with the design, keep in mind that function is more important than cost in
reaching a final decision since it is possible for the final installation to be inexpensive but nonfunctional.
A design that imposes operational limits to save costs may prove less desirable in the long run. Use
your site analysis to compare alternatives and arrive at the best solution in terms of both function and
cost.
Since the design of the MDF affects the design of the equipment room, be sure that your completed
design for the MDF is compatible with your equipment room plans or with the room that you have
selected for the MDF location. (When designing the MDF for a raised-floor installation, follow the
instructions under Designing the MDF for a Raised Floor in this chapter.) Figure 7-5, Overall
Equipment Wiring Plan: DEFINITY Generic 2 with Universal Modules, shows the overall equipment
wiring plan for Generic 2 with universal modules based upon the standard star configuration.
Sizing the MDF
The MDF is the largest cross-connect field of the wiring installation. It is where the incoming trunk
cables terminate and cross-connect to the trunk ports of the switch and where the building distribution
cables cross-connect to the line ports of the switch. The MDF consists of four fields: network
services/CO trunks (green), auxiliary and miscellaneous (yellow), distribution (white), and equipment
(purple).
MDF/lDF DESIGN: DEFINITY GENERIC 2 WITH UNIVERSAL MODULES

TABLE 7-4. Type-2 Frame Ordering Information

Style
2400-pair male
connectorized
2400-pair
field terminated
4800-pair male
connectorized
4800-pair
field terminated
Remarks
Single sided.
Single sided.
Double sided.
Double sided.
7-9