2-14
MDF/lDF DESIGN: SYSTEM 85 AND DEFINITY GENERIC 2 WITH TRADITIONAL MODULES
TABLE 2-4. Mounting Methods
Method of Mounting
No. of Modules
Wall
Wall Frame Self-Supporting
1-5
X
X
6-10
X
X
10 & up
X
Frame mounting of the terminal blocks for installations of all module sizes is desirable, but those of 10
modules or more must be frame mounted.
Arranging the Terminal Blocks
Arrange the terminal blocks with the following factors in mind:
●
Cable terminations to the fields and how the fields cross-connect
●
The type of port fields and the necessity for short jumper lengths
●
Possible zone configurations
These factors are discussed in the sections that follow.
Cable Terminations and Cross-Connections. Terminate the equipment port cables close to the
distribution cables, as suggested in figure 2-6,
Four-Area MDF,
to make connecting and disconnecting
the jumper wires as easy as possible; adjust the field design if it is more appropriate for a particular
application.
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