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Analog 2-Wire to 4-Wire Intercom Interfaces Product Summary

 
Model 45a 2-Wire to 4-Wire Interface Model 45A 2-Wire to 4-Wire Interface: Designed to interface a 2-wire full-duplex party-line intercom circuit with a 4-wire audio circuit associated with a matrix intercom system. Other specialized audio system interfacing applications can also be supported. Applications include television sports and special event broadcasting, theme park and theater installations, corporate events, and industrial testing environments.
Model 46A Dual 2-Wire to 4-Wire Interface Model 46A Dual 2-Wire to 4-Wire Interface: A single rack-space unit that interfaces 2-wire full-duplex party-line intercom circuits with 4-wire audio circuits associated with matrix intercom systems. The unit provides two independent full-featured 2-channel interfaces each with automatic nulling capability. Applications include television sports and special-event broadcasting, theme park and theater installations, corporate events, and industrial testing environments.
Model 47A Dual 2-Wire to 4-Wire Interface with Dual-Pin Power Model 47A Dual 2-Wire to 4-Wire Interface: A single rack-space unit that interfaces 2-wire full-duplex party-line intercom circuits with 4-wire audio circuits associated with matrix intercom systems. The unit provides two independent 2-wire interfaces with auto-nulling capability. Each interface also provides independent power sources for both channels of party-line intercom circuit. Applications include television sports and special-event broadcasting, theme park and theater installations, corporate events, and industrial testing environments.