4-Wire Interface with Call Signal, Matrix-to-Party-line
The EF-701M interface converts a single channel of standard or TW party-line intercom to four-wire audio, while also converting call signals to RS-422 data (and back). The resulting four-wire audio plus RS-422 data can then be sent to a Clear-Com Matrix port, fiber-optic converter (modem) or connected to another EF-701M over twisted-pair cable such as CAT-5E.
The EF-701M 4-Wire and Matrix Direct Interface is a flexible and powerful tool for connecting 2-wire intercom systems or stations together over various 4-wire transmission media. The EF-701M Interface can also connect a 2-wire intercom system directly to a Clear-Com Matrix frame port.
THE CLEAR-COM CONCEPT
Clear-Com is a closed-circuit intercom system that consistently provides high-clarity communication in high-noise and low-noise environments. A basic system consists of a single- or multi-channel power supply or main station connected to various single- or multi-channel remote stations, such as beltpacks and loudspeaker stations. Clear-Com manufactures a wide variety of both portable and fixed-installation units. All are compatible with each other. Clear-Com intercom systems can also interface with other communication systems and devices.
Please Note! This item is just one component of a larger system. Please refer to the diagram for ideas and recommendations for your Clear-Com intercom system.