Add one zone of talkback paging to any analog telephone system with the Valcom V-9941A, a one-zone talkback controller with background music input, optional alert tones, transmit and receive volume controls, and access via PBX loop-start trunk, key system CO line, or single-line phone set. The Telecom Spot Expert Review The V-9941A is the head-end controller required by Valcom talkback speakers like the V-1048C — the talkback speakers physically provide the two-way audio at the remote location, but the V-9941A provides the telephone system interface, the switching logic, and the audio processing that makes talkback communication work as a complete system. Background music input fills the speaker zone with program audio between pages, with the V-9941A handling the switching between music and page audio automatically. The optional alert tone and repeated alert tone outputs serve facilities that need a tone signal — a ring alert, a schedule signal, or an alarm notification — routed through the same speakers the paging system uses. Transmit and receive volume controls let the installer set the audio levels for both directions of two-way communication independently, which matters in acoustically different environments where the speaker volume and the microphone sensitivity need separate adjustment. Screw terminal connections handle all field wiring. Key Features 1-zone talkback controller — required head-end unit for Valcom talkback speaker systems Background music input with automatic switching to page mode Optional alert tone and repeated alert tone outputs Independent transmit and receive volume controls Access via PBX loop-start trunk, electronic key CO line, or single-line phone set Technical Specifications Model V-9941A Type 1-Zone Talkback Controller Access 600 Ohm two-way page port; electronic key CO line; PBX loop-start trunk; single-line phone set Input Impedance 600 Ohm Music Source Impedance 8 Ohm Music Input Level 1 to 3W Power Requirements –24 Vdc @ 300 mA Dimensions 7.25 in. H × 4.5 in. W × 2.0 in. D Weight 1.5 lbs (0.86 kg) Connections Screw terminals