Connecting FXS Interfaces Directly to an MDF

If you are using your own third-party MDF, perform the following instructions.

To reduce noise interference, use a twisted pair Octopus cable that is terminated on a metal-hooded 50-pin Telco connector.

➢ To connect FXS interfaces directly to an MDF:
1. Wire the 50-pin Telco connectors according to the pinouts in Connecting FXS Interfaces.
2. Connect the wire-pairs at the other end of the cable to a 50-pin male Telco connector (not supplied).
3. Attach the male connector to one of the FXS blade's 50-pin female Telco connectors, located on the chassis' rear panel.
4. Attach each pair of wires from a 25-pair Octopus cable (not supplied) to its corresponding socket on the MDF.
5. Connect the telephone lines from the MDF to the analog equipment, by inserting each RJ-11 connector on the 2-wire line cords to the RJ-11 sockets on the front of the MDF:

Connecting FXS Interfaces Directly to MDF