Clear-Com IF4W4 Four channel interface connects Clear-Com to TV

MSRP: $1,470.00
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IF4W4 Four channel interface connects Clear-Com to TV

4-Channel 3- or 4-Wire Camera Interface Rack Mount (1RU), provides 4 discrete Clear-Com to 3- or 4-wire interface circuitsFour channel interface connects Clear-Com to TV cameras, two-way radios, satellite links, and other communications devices through either their headset jacks or 4-wire circuits. IF4W4 has selective partyline capability. Features individual transmit, receive, and null controls, as well as transmit level indicators. Switchable mic or line-level output for compatibility. The built-in test jack and test tone provide quick nulling.


  • Interfaces TV cameras, 2-way radios, fiber circuits and other 4-wire devices to Clear-Com partyline
  • Individual Transmit Receive and Null controls
  • Transmit output switchable between mic and line level
  • Built-in test jack and oscillator for quick nulling
  • Selective partyline capability
  • Accepts balanced or unbalanced 4-wire input
  • Transformer isolated
  • Terminal block and XLR connectors for each interface
  • Powered by the intercom line



Program Line Input

Input Impedance: >= 1K

Partyline Output

Output Impedance: >10K

Stage Announce/Balanced Line Out

Type: Balanced

Output Impedance: >= 80

Load Impedance: >= 600

Frequency Response

Program Input – Partyline: 200 – 18kHz ± 3dB

Partyline – Line Out: 200 – 18kHz ± 3dB

Max Distortion

Program Input – Partyline: <= 0.2%

Partyline – Line Out: <= 0.5%


Program Input – Partyline: < -85dBu

Partyline – Line Out: < -60dBu

Max Gain

Program Input – Partyline: >= -16dB

Partyline – Line Out: >= 24dB

Min Gain

Program Input – Partyline: <= -20dB

Partyline – Line Out: <= -45dB

Line Out LED Threshold

Green: -7dBu ± 2dB

Red: +5dBu ± 2dB

Partyline LED Threshold

Green: -10dBu ± 2dB

Red: 0dBu ± 2dB


Input Voltage Range: 20-30V DC

Input Current (Idle): <= 40mA

Input Current (Max): <= 50mA


32 – 122°F (0 – 50°C)


1.75 x 19 x 7.75in (HxWxD)

(44 x 483 x 197mm)


5.8lbs (2.7kg)