Clear-Com IF4W4 4 Channel Camera Interface for Communication Devices

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. 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.

Key Features

• Interfaces TV cameras, 2-way radios, fiber-optic circuits, and other devices to Clear-Com party-line intercom
• Each interface has individual transmit, receive, and null controls
• Transmit output switchable between mic and line level, with transmit-level indicator
• Built-in test jack and oscillator enable quick nulling of the transmit/receive hybrid
• Selective party-line capability
• Accepts balanced or unbalanced 4-wire input
• Transformer isolated
• Terminal block and XLR connectors provided for each interface
• Powered by the Clear-Com line

Technical Specifications

CLEAR-COM FORMAT
Program Line Input
Input Impedance
>= 1K OHMS
Partyline Output
Output Impedance
>10K OHMS
Stage Announce/Balanced Line Out
Type
Balanced
Output Impedance
>= 80 OHMS
Load Impedance
>= 600 OHMS
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%
Noise
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
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 - 122F (0 - 50C)
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)