Chapter 2 Hardware Installation and Connections
IES-5106M / IES-5112M / IES-6000M User’s Guide
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2.6 MDF Connections
This section shows you how to connect the splitter chassis to a Main Distribution
Frame (MDF).
2.6.1 MDF Connections Overview
Observe the following before you start:
• Refer to Chapter 5 on page 75 for the gauge of telephone wire to use.
• Follow the pin assignments shown in the line card User’s Guide to wire Telco-50
cables to Telco-50 connectors.
2.6.2 MDF (Main Distribution Frame)
An MDF is usually installed between subscribers’ equipment and the telephone
company (CO) in a basement or telephone room. The MDF is the point of
termination for the outside telephone company lines coming into a building and
the telephone wiring in the building.
Figure 37 MDF (Main Distribution Frame) Wiring
• Connect wiring to end-user equipment to the lower ports of an MDF and connect
wiring from the telephone company to the upper ports of an MDF (see the
previous figure).
• Some MDFs have surge protection circuitry built in between the two banks;
thus, do not connect telephone wires from the telephone company directly to
your IES.
• Use a punch-down tool to seat telephone lines into MDF blocks.
