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3.2.2 LAN Port (Ethernet) Connection
Connect the LAN port of your IES-612-51A to an Ethernet WAN switch using a straight-
through Category 5 UTP (Unshielded Twisted Pair) cable with RJ-45 connectors.
You may connect multiple IES-612-51A units to the same Ethernet switch (up to the number
of ports available on the Ethernet switch).
3.2.3 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.
Figure 7 MDF Wiring
• Connect wiring from end-user equipment to the lower ports of an MDF using a telephone
wire. 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 the IES-612-51A.
• Use a punch-down tool to seat telephone lines between MDF blocks.
3.2.4 Telco-50 Cables
Telco-50 cables are used for data and voice applications with MDFs (Main Distribution
Frame), patch panels and distribution boxes. They can also be used as extension cables. Telco-
50 cables are made up of 25 twisted-pair copper wires.
Connect a Telco-50 connector to one end of the cable (see the hardware specifications
appendix for pin assignments) and connect the other end directly to an MDF; alternatively
attach RJ-11 connectors and connect directly to DSL modem(s).
IES-612-51A User's Guide
Chapter 3 Front Panel
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Troubleshooting
