Partyline: What adaptor / interface do I use for a 4-Wire to 2-wire interface

Clear-Com offers a range of 4wire to 2wire (partyline) interfaces IF4W4 or the EF-701M
IF4-W-4 (current)
1RU Four channel interface connects Clear-Com to TV cameras, two-way radios, satellite links, and other communications devices through either their headset jacks or 4-wire circuits. IF4W4 has selective party-line capability. Features individual transmit, receive, and null controls, as well as transmit level indicators. Switchable mic or line-level output for compatibility. The built-in test jack and test tone provide quick nulling.
Obsolete unit IF4-4
The IF4-W-4 only comes in a four module version.
The IF-4-4 (four module version) and the IF4-2 (two module version) are
not availble.
Please contact our Sales Department if there are any questions or if you model is not listed above


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