Zyxel VES-1624FT-55A [53/312] Mdf connections

Zyxel VES-1624FT-55A [53/312] Mdf connections
VES-1624FT-55A User’s Guide
53
CHAPTER 4
MDF Connections
This chapter shows you how to connect the Telco-50 connectors to an MDF.
4.1 MDF Connections Overview
Observe the following before you start:
See Chapter 54 on page 283 for the gauge of telephone wire to use.
Follow the pin assignments shown in Chapter 54 on page 283 to wire Telco-50 cables to
Telco-50 connectors.
See Chapter 54 on page 283 for details on how to make the management connections.
4.2 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 16 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 IP DSLAM.

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