Description Product Reviews Viking LPR-1 Line Powered Ringer 92db @ 1M This auxiliary electronic ringer operates on any analog line that provides a minimum of 40 volts 20-30 Hz AC ring voltage. Nominal 3 KHz warble provides adequate volume for business offices. The LPR-1 can be connected via screw terminals or modular RJ-11 jack. A volume control and a 7 foot modular cord are provided. No power supply is required. Ringing from an analog line Connect via screw terminals or modular RJ-11 jack 7 ft line cord provided Adjustable volume control Environmental: 0C to 32C (32F to 90F) with 5% to 95% noncondensing humidity Maximum Sound Pressure: 92 dB SPL @ 1 meter (nominal) Minimum Ring Voltage: 40V AC RMS @ 20-30 Hz Connections: (2) cage clamp screw termInals (1) modular RJ-11 jack 0 Reviews Hide Reviews Product Reviews