Clear-Com PS704 4 Channel Intercom Power Supply

The PS-704 is a four-channel, single-rack-space intercom power supply that supports up to 40 beltpacks or 10 speaker stations. With the intercom line jack on the front of the panel, users can easily switch between any or all channels and set individual channel levels when needed; while the metal chassis and extra-thick front panel with integral rack ears maintains the legendary Clear-Com ruggedness.

In the event of a short circuit or current overload, the exclusive Intelligent Fault/Overload Sensing (IFOS) will dynamically increase the time period before attempting another reset until the fault or overload is corrected, therefore extending the life of the unit. There is no need to disconnect stations for the power supply to reset.

A line-level program input offers a master input level. Individual program selects, each with its own send level, are provided for each channel. Use of a switching power supply allows the PS-704 to operate with any AC line voltage from 100 volts to 240 volts AC at 50 Hz or 60 Hz.

Features

• Only one rack space high
• Provides up to 2 amps total power
• Supports up to 40 beltpacks, 10 speaker stations or12 headset stations
• One to four channels of intercom with individualchannel power protection
• Automatic short circuit protection and reset for eachchannel
• Program input with selectable channel assignment andindividual channel level controls
• Can be paralleled with other power supplies and mainstations for increased capacity or backup support
• Switchable terminations on each channel

Specifications

• Program Line Input:
  • Maximum Level before Clipping: >= 20dBu
• Input Impedance: >= 5K
• Frequency Response:
  • Program Input – Party Line: 200 – 20KHz ± 3dB
• Max Distortion:
  • Program Input – Party Line: < = 0.2%
• Noise:
  • Program Mic Input – Party Line: < -70dBu
• Max Gain:
  • Program Input – Party Line: >= -16dB
• Min Gain:
  • Program Input – Party Line: < = -20dB
• Mains Power:
  • Input Voltage Range: 100 – 240 VAC
  • Input Frequency Range: 50 – 60 Hz
  • Input Power: < = 60 VAC
  • Output Voltage: 30 VDC ± 0.5V
  • Output Current per Channel (Continuous): 1.2 A
• Output Current per Channel (Peak): 2 A (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° to 122°F (0 to 50°C)
• Dimensions (HxWxD): 1.75 x 19 x 7.5 in (44 x 483 x 190 mm)
• Weight: 6.16 lbs. (2.80 kg)