ZyXEL Communications IES-2500, User Manual, Page: 35 / 65

IES-2500 User’s Guide
MDF Connections 5-1
This chapter shows you how to connect the splitter chassis’s rear panel to an MDF.
5.1 MDF Connections Overview
Observe the following before you start:
Images of the IES-2000ST (Splitter chassis with Telco-50 connectors) rear panel are used throughout this
chapter. Connections for the splitter chassis with wire wrapping pins use the same pin assignments.
Refer to the hardware specifications in the appendices for the gauge of telephone wire to use.
Follow the pin assignments shown in the appendices to wire Telco-50 cables to Telco-50 connectors.
Refer to the User’s Guide of your management switch card for details on how to make the management
connections.
5.2 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 5-1 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.
Chapter 5
MDF Connections