Ksu Wiring; Mdf - Comdial DX-80 Technical Manual

Installing the DX-80

2.5 KSU Wiring

System power must be OFF before you plug in the station cable or
while servicing port connections at the punch-down block (66M1-50).
Although each port is over-current protected, unnecessary shorting should be avoided.
The 408M/E, APM4, COM4, and DPM8 are equipped with RJ-11 modular jacks for each of the inter-
faced ports. This connection scheme allows for two methods of installation. The first method (tradi-
tional "MDF") is recommended whenever possible to allow for maximum serviceability.

2.5.1 MDF

Whenever you extend the various ports of the DX-80 to the MDF, you must extend modular-ended
cables from the KSU module port to the MDF connection block. You have many choices when com-
pleting these connections; it is left to the your discretion to use the most suitable industry-standard
wiring practice for the particular installation.
Use a quality crimping tool to fasten the modular connector to the
cable pair when using field-crimped modular connectors. Use of an
Many third-party vendor products are available to aid in this installation procedure. The following
examples are readily available at communications equipment / accessories supply houses. Although
this example denotes product of The Siemon Company®, you are urged to investigate the various
products available and make decisions for use based on your own assessment. Comdial is not respon-
sible for the performance of any product provided by a third-party (outside) vendor.
The examples in the following chart are 25 pair (UTP), USOC, 24 AWG cables pre-fitted with modular
connectors on one end of the cable, and a male or female AMP® type connectors on the other end for
termination on a specially equipped, 66-block with mating AMP® type connector.
HYD-F-24U1-03
HYD-F-24U1-07
HYD-F-24U1-10
HYD-M-24U1-03
HYD-M-24U1-07
HYD-M-24U1-10
44
WARNING
CAUTION
inferior crimping tool can lead to bad connections.
The Siemon Company® Hydra Cable Assemblies
Product Length
Number (feet)
Comdial
Wiring Scheme -
End 1
3 25-Pair, Female
7 25-Pair, Female
10 25-Pair, Female
3 25-Pair, Male
7 25-Pair, Male
10 25-Pair, Male
October, '03