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Chapter 3 Front Panel
IES-612-51A User’s Guide
56
Figure 12 Installation Scenario B
3.2.7.2.1 Procedure To Connect To MDFs
1 Connect the Telco-50 connector end of the cable to the Telco-50 connector.
2 Connect the USER wiring on the other end 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 CO wiring of the Telco-50 cable to the lower ports of MDF 2 using a punch-
down tool.
5 Connect the upper ports of MDF 2 to the lower ports of MDF 1 using telephone wires.
6 Connect the upper ports of MDF 1 to the telephone company.
7 Telephone subscribers only (non-DSL subscribers) retain connections to the lower ports
of MDF 1.
8 Change the wiring from MDF 1 to MDF 3 for telephone subscribers who want DSL
service.
3.2.7.3 Installation Scenario C
Phone service is also available but there are two MDFs; one for end-user telephone line
connections and the other one for CO telephone wiring connections (see the following figure).