Typical Mdf Installation - Comdial DX-80 Technical Manual

Installing the DX-80

2.6 Typical MDF Installation

The following example install illustrates a two-cabinet installation using the MDF installation method.
Dedicated
AC Outlet.
(Dedicated
means that
this AC
outlet has
no other
equipment
connected
on this
circuit
breaker.
#10
AWG
ground
46
DX-80 DX-80
KSU1 KSU2
66M1-50 blocks
66M1-50
KSU
blocks
terminations
"Station"
phone cable
terminations
Comdial
Cables from
telephones
Paging
Equipment,
other
ancillary
(third-party)
equipment.
66M1-50
blocks
ancillary
equipment
(Paging,
music
sources, etc.)
66M1-50
The 66M1-50 is split into a left half and right half
for wiring terminations.
Each row is conductive between the left two
columns and the right two columns. This is the
source of the term "Split 50."
Terminate cable pairs from the KSU and from
telephone locations on outer column pins, one lead
only per pin.
NEVER terminate two wires on one pin!
This is referred to as "double-punching" and
causes poor connection of wires on the terminal.
(Note: When used with "Bridging Clips," the Split
50 block can be used to isolate trouble in wiring.)
"Station"
October, '03