Clear Com PS-704 4 Channel Intercom Power Supply The PS-704 is a four-channel, single-rack-space intercom power supply that features Clear-Com?s ?fail-safe? design for maximum reliability. The power supply delivers 2 amps at 30 volts, supplying power for one to four channels of intercom. Note: Access the Encore Power Supply Calculator to estimate power requirements for analog partyline systems. Details Provides up to 2 amps at 30 Volts Supports up to 40 beltpacks, 10 speaker stations, or 12 headset stations Exclusive Intelligent Fault/Overload Sensing (IFOS) for system reset Switchable line terminations for each channel Built-in test tone generator for set up and diagnostics UL listed and CE certified Line and load regulated Short-circuit protected Item Code PS-704 Technical Specifications Program Line Input Maximum Level before Clipping: = 20dBu Input Impedance: = 5K Frequency Response Program Input - Partyline: 200 - 20kHz 3dB Max Distortion Program Input - Partyline: = 0.2% Noise Program Mic Input - Partyline: -70dBu Max Gain Program Input - Partyline: = -16dB Min Gain Program Input - Partyline: = -20dB Mains Power Input Voltage Range: 100 - 240V AC Input Frequency Range: 50 - 60Hz Input Power: = 60V AC Output Voltage: 30V DC 0.5V Output Current per Channel (Continuous): 1.2A Output Current per Channel (Peak): 2A (Do not exceed the 1.2A rating for more than 2 seconds per 1 minute period) Short Circuit Recovery Time (1st short): = 0.5 sec Short Circuit Recovery Time: = 20 shorts in 20sec) = 20 sec Environmental 32 - 122F (0 - 50C) Dimensions 1.75 x 19 x 7.5in (HxWxD) (44 x 483 x 190mm) Weight 6.16lbs (2.80kg)