Clear-com IF4W4 4-Wire to PartyLine System
Interface
Clear-com IF4W4 modular 4-wire interface connects
camera intercoms, two-way radios, ber-optics, and other 4-wire devices to a
standard Clear-Com intercom line. The 1-RU chassis holds up to four
individual interface modules, each with its own 4-wire terminal block and
XLR-3M connector to interface with Clear-Com.
The IF4W4 accepts
balanced or unbalanced 4-wire input and is transformer isolated. It is
powered by the Clear-Com intercom line, using standard two-conductor
shielded mic cable.
• 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
• 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: 20-30V DC
Input Current (Idle): <= 40mA
Input Current (Max): <= 50mA
• Environmental
32 - 122°F (0 - 50°C)
• Dimensions
1.75 x 19 x 7.75in (HxWxD)
(44 x 483 x 197mm)
•
Weight
5.8lbs (2.7kg)
