Application: A customer with a new (or existing) partyline intercom needs to integrate the Clear-Com partyline with his new cameras (that you probably just sold to them, right?).
Product Must: Interface 1 channel (or more) of partyline intercom with the camera's intercom, so that the operator will be able to use the camera intercom headset with no need for a partyline beltpack.
Solution: Clear-Com's Encore Partyline Intercom that includes the IF4W4 interface.
Clear-Com Encore Partyline Systems offer unsurpassed 2-wire group communication capabilities. This platform offers an intuitive plug-and-play design and superior audio clarity with the embedded "Clear-Com Sound".
The IF4W4 4-channel, 3- or 4-wire Camera Interface Rack connects Clear-Com to TV cameras, two-way radios, satellite links and other communication devices via the headset jacks or 4-wire circuits.
The best way to interface a camera intercom is, without exception, to access the intercom circuit as a 4-wire circuit and then use one of the 2-to-4 wire interfaces to convert to the 2-wire partyline, much like Clear-Com's EF-701M (single channel) or the IF4W4 unit.
The best answer for camera interfacing is to order the camera with a 4-wire intercom connection. Most higher-end cameras provide this as standard or offer it as an option. This is always the best way to interface to the camera intercom. A 4-wire connection is frequently not available on lower cost cameras. If a 4-wire connection to the camera intercom is not available, the next best choice is to interface to the headset connection on the camera CCU/DCU. (Remember: Rule #1 is that the headset connection MUST be a 3- or 4-wire circuit.)