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JK Audio interchange LTD

Intercom Phone Bridge w/ Hybrid


JK Audio interchange LTD
JK Audio interchange LTDJK Audio interchange LTD
Turn Your Phone Line Into a Party-Line.

Interchange LTD allows remote access to your party-line intercom system. This 1RU rackmount interface includes a digital hybrid for connection to analog (POTS) phone lines. The front panel headset interface jack allows easy connection to your wireless phone, tablet, or computer allowing remote access through a phone call or conferencing app. The front panel DTMF keypad and headset jack allow easy call setup.

The internal digital hybrid connects intercom audio to a standard analog telephone line without the transmit/receive crosstalk common to analog hybrids. Its DSP continuously monitors both the phone line and audio signals to deliver excellent separation. This proprietary, dual-convergence echo canceller algorithm can achieve excellent separation, typically exceeding 50 dB, without any setup and without sending a noise burst down the line.

Main Features:
• Male and Female 3 Pin XLR Intercom Loop Jacks
• Male XLR Mix Line Out for Monitoring
• Send and Receive LED Metering
• Front Panel Screwdriver Level Controls
• Front Panel Channel Select
• Front Panel Cell Phone Interface
• Listen Always, Talk when Talk-Enabled
• Enable/Disable Auto-Answer
• 16-bit DSP Technology
• Front Panel Off-Hook LED
• Send and Caller Signal Level LEDs


Intercom Channel
• Connection: Male & Female 3-pin XLR
• Output Level: -10 dBu (250 mV RMS) nominal
• Terminating Impedance: 200 ohms
• Bridging Impedance: >15k ohms
• Pin 1: Common
• Pin 2: Audio + 30 VDC ( +12 VDC min ) 50 mA
• Pin 3: Audio Headset
• Connection: 3.5 mm TRRS
• Frequency Response: Wireless Interface 50 Hz - 7 kHz (HD Voice)
• Balanced Male XLR:
• 200 ohms / 500 mV RMS (-4 dBu nom) +12 dBu max
• Ringer: 0.8B REN
• Isolation: 1500 VAC
• Frequency Response: Telephone Side 200 Hz - 3600 Hz
• Monitor Headset Jack: 3.5 mm TRRS
• Power: 120-240 VAC Power Supply (included)
• Size: 19” x 5.4” x 1.75” • Weight: 5.2 lbs

JK Audio interchange LTD Figure 1

List Price: $1,575.00
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