Clear-Com IF4W4 4-Channel Camera Interface Rack Mount

Clear-Com IF4W4 4-Channel Camera Interface Rack Mount

SKU: IF4W4 Category:


Clear-Com IF4W4 Camera Interface

Clear-Com IF4W4 4-Channel 3- or 4-Wire Camera Interface Rack Mount (1RU), provides 4 discrete Clear-Com to 3- or 4-wire interface circuits. Four-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. Clear-Com 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: >= 1KΩ
Party-line Output Output Impedance: >10KΩ
Stage Announce/Balanced Line Out Type: Balanced
Output Impedance: >= 80Ω
Load Impedance: >= 600Ω
Frequency Response Program Input – Party-line: 200 – 18KHz ± 3dB
Party-line – Line Out: 200 – 18KHz ± 3dB
Max Distortion Program Input – Party-line: <= 0.2%
Party-line – Line Out: <= 0.5%
Noise Program Input – Party-line: < -85dBu
Party-line – Line Out: < -60dBu
Max Gain Program Input – Party-line: >= -16dB
Party-line – Line Out: >= 24dB
Min Gain Program Input – Party-line: <= -20dB
Party-line – Line Out: <= -45dB
Line Out LED Threshold Green: -7dBu ± 2dB
Red: 5dBu ± 2dB
Party-line LED Threshold Green: -10dBu ± 2dB
Red: 0dBu ± 2dB
Power Input Voltage Range: 20-30 VDC
Input Current (Idle): <= 40mA
Input Current (Max): <= 50mA
Rear Panel Connectors Intercom: (4) XLR-3F (1 per channel)
4-Wire Terminal Block Connectors: (4) Connectors (1 per channel)
4-Wire Transmit Level Switches: (4) Switches (1 per channel)
Front Panel Connectors Headset: (1) XLR-4M
TS1 Earphone: (1) 3.5mm Jack Socket
Front Panel Controls & Indicators Green Level LED: (4) LEDs (1 per channel)
Red Level LED: (4) LEDs (1 per channel)
Link LED: (4) LEDs (1 per channel)
Power LED: (4) LEDs (1 per channel)
Null Test Button: (4) Buttons (1 per channel)
Receive Level Adjust: (4) In controls (1 per channel)
Transmit Level Adjust: (4) Out controls (1 per channel)
Nulling Adjust: (12) Null controls (3 per channel)
Channel Link Switch: (3) Link switches (A B, A C, A D)
Environmental 32 – 122°F (0 – 50°C)
Dimensions 19 in. W x 1.75 in. H x 7.75 in. D
(483 mm x 44.5 mm x 197 mm)
Weight 5.83 lbs. (2.65 Kg)


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8% Goods Service Tax (GST) will be imposed over the total invoice value if purchased locally in Singapore. However if you are a tourist visiting Singapore, this GST amount can be refunded at the Changi International Airport Departure Hall GST Refund Centre before departure with goods within 60 days from the date of purchase. Please note that only Tourists who have met the Tourist Refund Scheme’s conditions and eligibility criteria can claim for the GST refund. Visit the following link for GST Guide for Visitors on Tourist Refund Scheme.

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