JK Audio Four IFB
Four Line Phone Bridge

Four IFB

Four IFB is a four position analog telephone line interface. This road tough product is designed to provide flexible listen-only IFB for television field production use. Each IFB output, and the monitor input / output jacks, may be separately connected to one of the four analog phone lines. A telephone handset may also be connected for communication with the Monitor phone line.

Four IFB is designed for use in real world environments and weather conditions. All controls and components are dust and moisture resistant. The hinged cover protects the unit's selector switches, add/drop buttons, and keypad.

Features:

• Four RJ11 analog phone line jacks
• Five male listen-only XLRs
• Individual level and line selector controls
• One female XLR with gain control for 2-way communication
• DTMF keypad
• Line status LEDs
• Recessed controls behind hinged door
• Internal power supply with auto switchover to 9 volt battery

Specifications:

• Input: Balanced Female XLR Line level, 20k ohms, +4dBu max
• Outputs: (five) Balanced Male XLR Line level, 600 ohms, +4 dBu max
• Handset: RJ-22 handset jack biased for electret handset (not included)
• Phone Line: (four) RJ11C
• Isolation: 1500 VAC
• Ringer: 0.4B REN
• Frequency Response: Telephone Side 200 Hz - 3600 Hz
• Power Supply: 120-240 VAC, 50-60 Hz Internal Power, IEC320 to US power cord included
• Aux Power: 9 volt battery
• Dimensions: 10" x 9.75" x 2" (25 x 25 x 5 cm)
• Weight: 3.5 lbs. (1.6 kg)

Our Part #  FOURIFB