ZyXEL Communications IES-1000 - Figure 6-4 SHDSL Port, MDF and User Equipment Connections

IES-1000 User’s Guide
6-4 Hardware Connections
Figure 6-4 SHDSL Port, MDF and User Equipment Connections
Notes About MDFs (Main Distribution Frames)
An MDF is usually installed between end-users’ 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 lines in the building.