Partyline to Four-Wire Audio Conversion

The Clear-Com EF-701M is a professional interface designed to convert a single-channel partyline intercom signal into four-wire audio. This allows analog partyline communication systems to integrate with matrix intercom systems and other professional broadcast communication equipment.

Reliable Signal and Data Conversion

In addition to audio conversion, the EF-701M converts intercom call signals into RS-422 data, enabling reliable communication over extended distances and through fiber-based systems. The selectable baud rate allows flexible integration into different communication infrastructures.

Cross-System Compatibility

The EF-701M supports both Clear-Com and RTS intercom formats, making it suitable for mixed intercom environments. This flexibility allows production teams and broadcast engineers to connect various communication systems without complex configurations.

Built for Professional Intercom Systems

The unit features a built-in test tone and a jack for hybrid null adjustment, helping technicians optimize audio performance. A multi-mode data status LED provides quick visual feedback on data transmission, while the device is powered directly from the intercom line for simplified installation.