MDF/IDF DESIGN: DEFINITY GENERIC 2 WITH UNIVERSAL MODULES
7-3
Height Requirement for Terminal-Block Columns
When you lay out the columns of terminal blocks for the MDF, place no more than 1500 pairs (five
300-pair blocks in a column) for either frame- or wall-mounted installations. (See figure 7-1,
Maximum
Column 1500 Pairs (Five 300-Pair Teminal Blocks).)
Taller columns are hard to reach and make
connecting and disconnecting jumper wires difficult. Also, if horizontal space is limited, you may use
1800-pair columns for small installations as long as height does not present problems.
(A) WALL-MOUNTED COLUMN
(B) FRAME-MOUNTED COLUMN
Figure 7-1. Maximum Column 1500 Pairs (Five 300-Pair Terminal Blocks)
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