Universal Paging Amp

Features
Floating 600 ohm output
Selectable 12V DC talk battery for interfacing with C.O. ports
Paging port interface
Ringing analog line input for night bell
Contact closure input for night bell
Normally open and normally closed VOX activated contacts for cutting out background music
Adjustable VOX contact time-out
Adjustable ring volume

Specifications
Power: 120V AC/12V DC 500mA, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (5.25" x 3.5" x 1.75")
Environmental: 0 degC to 32 degC (32 degF to 90 degF) with 5% to 95% noncondensing humidity
Relay Contacts: 30V DC@1A, 110V DC@0.3A, 125V AC @0.5
Maximum Ring Output: 490mV AC RMS no load, 150mV AC RMS@600 ohms
VOX Minimum Audio Signal to Activate Relay: 50mV AC RMS@1K Hz
Talk Battery: 12V DC