Clear-Com IF4W4, 4 Ch. 4-wire interface

Clear-Com IF4W4, 4 Ch. 4-wire interface

Clear-Com IF4W4 features a front panel controls allows quick adjustments to parameters for each interface module, optimizing the interface between the 4-wire device and the partyline.

The Clear-Com IF4W4 terminal block provides a pair of connections for both transmit and receive signals with the XLR-3M connector providing the link between the interface and the Clear-Com intercom line. The test jack on the front panel of the Clear-Com IF4W4 has a built-in oscillator to quickly null the transmit/receive hybrid.

4 Ch. 4-wire interface: 
Encore four-channel camera interface. 1RU rack mount provides four discrete Clear-Com channels to balanced or unbalanced 4- wire interface circuits. Can be used to connect to four different two- wire partyline channels or a single partyline channel with four 4- wire connections.

Clear-Com IF4W4 Product Features

• 4-Channel 4-Wire to Partyline Interface
• 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
• Optimizes Operating Parameters
• Transmit and Receive Signal Hybrid

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%

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

Environmental
32 – 122°F (0 – 50°C)

Dimensions
1.75 x 19 x 7.75 in (HxWxD)

(44 x 483 x 197 mm)

Weight
5.8 lbs (2.7 kg)