JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

B&H # JKINTCHGLTD MFR # INTCHGLTD
JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface

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New Item - Special Order
Expected availability: Jun 21, 2017

Product Highlights

  • M/F 3-Pin XLR Intercom Loop Jacks
  • Male & Female 3-Pin XLR 4-Wire Jacks
  • 16-Bit DSP Technology
  • Front Panel Cell Phone Interface
  • HD Voice Compatible (7 kHz Wide Band)
  • Send & Receive LED Metering
  • Front Panel Channel & Cell Phone Select
  • Auto Answer
  • Front Panel Off-Hook LED
  • Rack-Mountable
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  • 1Description

The Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface from JK-Audio is a 1 RU rackmount device that allows remote access to your party-line intercom system and includes a digital hybrid for connection to analog POTS (plain old telephone service) phone lines. The front panel headset interface jack can be used to allow connection to your wireless phone, tablet, or computer.

Featuring male and female 3-pin XLR intercom loop jacks, and 3-pin XLR 4-wire jacks, the Intercom LTD phone bridge is built with front panel level controls and channel select options, and has send and receive LED metering. In addition, the digital hybrid 16-bit DSP technology continuously monitors both the phone line and audio signals without the transmit/receive crosstalk common to analog hybrids.

Additionally, other features of the Interchange LTD include auto answer, listen always, talk when talk-enabled, send and caller signal-level LEDs, and a DTMF keypad redial option. Finally, the Interchange LTD is designed to allow remote access to your party-line intercom system.

Listen-Always Design
The listen-always design allows for both the phone hybrid and the mobile phone headset interface to monitor the intercom, just like any other belt pack. Listen mode is a high impedance bridging tap on the intercom line. Talk mode is enabled via a front panel switch, either Off, On, or Auto. Auto follows the phone hybrid auto-answer mode.
Digital Hybrid
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 separation. This proprietary, dual-convergence echo canceller algorithm can achieve separation up to 50 dB, without any setup and without sending a noise burst down the line.
In the Box
JK Audio Interchange LTD Intercom Phone Bridge + Digital Hybrid Interface
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Intercom Channel Male & female 3-pin XLR
    Output Level -10 dBu (250 mV RMS) nominal
    Minimal Terminating Impedance 200 Ohms
    Bridging Impedance >15 kOhms
    Pin Assignments Pin 1: Common
    Pin 2: Audio +30 VDC (+12 VDC min) 50 mA
    Pin 3: Audio
    Line Out Balanced female XLR
    Impedance 200 Ohms
    Level 500 mV RMS (-4 dBu nom, +12 dBu max)
    Headset Interface Connection: 1/8" (3.5 mm TRRS)
    Frequency Response Wireless Interface: 50 Hz to 7 kHz (HD Voice)
    Miscellaneous Features Ringer: 0.8 B REN
    Isolation 1500 VAC
    Frequency Response Telephone Side: 200 to 3600 Hz
    Dimensions (L x W x H) 19 x 5.4 x 1.75" (48.3 x 13.7 x 4.4 cm)
    Weight 5.2 lb (2.4 kg)

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