Clear-Com PIC4704
Program Interrupt Controller

PIC4704

The Clear-Com program interrupt/IFB system is designed for all broadcast and teleproduction applications. It may be used as a stand-alone system or be fully integrated into an intercom network. Clear-Com's IFB system allows talent to monitor the ongoing program, while permitting directors and producers to interrupt or dip the program audio to address them.

PIC-4704 IFB Controller
Each IFB Controller handles up to four talent receivers with inputs for two program sources. It contains the circuitry for selecting one of the two program sources, sending the program to the IFB channels, and interrupting it – with variable attenuation - via the talent access stations. Its four separate outputs provide discrete, interruptable IFB lines to TR-50 talent receivers.

Talent Access Stations
Each talent access station contains four momentary pushbuttons, each of which is associated with a separate talent output from a PIC-4704 Controller. All pushbuttons contain "tally" lamps to indicate IFB channels in use. An optional rack-mount kit holds up to three access stations, providing control of 12 IFB channels in one rack space.

Features

• Works as stand-alone system, or can be integrated with Clear-Com intercom stations
• Large system capacity – up to 96 Talent Receivers accessible from up to 50 locations
• Provides split program feeds for binaural headsets on a single mic cable
• Two separate program inputs and individual program level controls on IFB Controller
• Program feeds are selectable for “interrupt” or “non-interrupt”
• Amount of interrupt attenuation individually adjustable for each talent output
• Modular Access Stations expandable in groups of four
• Up to 12 talent access buttons in one rack space (1.75")
• “Tally” lights indicate IFB channels in use
• “All IFB” button simultaneously accesses all IFB channels
• Easy to install and operate
• Compatible with all Clear-Com main and remote stations

Specifications

• Program Line Input
  Maximum Level before
  Clipping: >= 20dBu
  Input Impedance: >= 5K ohms
• Frequency Response
  Program Input - Talent: 200 - 18KHz ± 3dB
  Extension Line - Talent: 200 - 18KHz ± 3dB
• Max Distortion
  Program Input - Talent: <= 0.1%
  Extension Line - Talent: <= 0.1%
• Noise
  Program Input - Talent: < -85dBu
  Extension Line - Talent: < -85dBu
• Max Gain
  Program Input - Talent : >= -14dB
  Extension Line - Talent: -14dB ± 3dB
• Min Gain
  Program Input - Talent: <= -45dB
• Power
  Input Voltage Range: 20-30 VDC
  Input Current: <= 90mA
• Rear Panel Connectors
  IFB Input: (2) XLR6F
  Power In: (1) XLR3F
  Power Out: (1) XLR3M
  Talent Out: (4) XLR3M
  Program In: (2) XLR3F
  Program Out: (2) XLR3M
• Front Panel Controls & Indicators
  (1) Power indicator LED
  (2) Program input level controls
  (4) Non-interrupt program select switches
  (4) Interrupt program select switches
  (4) Audio dip level controls
• Environmental: 32 - 122°F
• Dimensions (H x W x D): 1.75" x 1.75" x 1.75"
• Weight: 5.76 lbs

Our Part #  PIC4704