- Touch Tone control of four zones expandable to 8 zones - Switches line level signal to amplifiers or amplified signal to speakers amplifier s not included - Balanced audio circuitry for low noise- Night bell warble with adjustable level from contact closure or ringing analog line- Input provided for background music- Separate paging and background music level adjustments- Background music automatically mutes in paged zone s in all but single amplifier mode- All-call and five group call patterns selected by Touch Tones- Adjustable page alert tone level- Interfaces with ringing C O lines Centrex lines paging ports unused phone system trunk inputs or ringing analog station ports- Disconnects on timeout silence or CPC- Screw terminals for all input and output connnections
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