Figure 24 Installation Scenario B - ZyXEL Communications IES-5000 Series User Manual

This installation scenario requires three MDFs. Please refer to the following figure for the
connection schema.
• MDF 1 is the original MDF used for telephone connections only.
• MDF 2 is used for telephone connections only.
• MDF 3 is for DSL service connections.
Note: Change the wiring from MDF 1 to MDF 3 for telephone subscribers who want
DSL service.

Figure 24 Installation Scenario B

Use the following procedure for this MDF installation scenario.
1 Connect the Telco-50 connector end of the cable you want for DSL service to the Telco-
50 connector labeled USER on the splitter chassis rear panel.
2 Connect the wiring on the other side of the Telco-50 cable to the upper ports of MDF 3
using a punch-down tool.
3 Connect the telephone wiring from the end-user's DSL modem(s) to the lower ports of
MDF 3.
4 Connect the Telco-50 connector end of the cable you want for phone service to the Telco-
50 connector labeled CO on the splitter chassis rear panel.
5 Connect the wiring on the other side of the Telco-50 cable to the lower ports of MDF 2
using a punch-down tool.
Chapter 3 Hardware Installation and Connections
IES-5000 Series User's Guide
43