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JK Audio Inline Patch User Manual
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JK Audio Inline Patch User Manual

Telephone audio interface
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Inline Patch
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TELEPHONE AUDIO INTERFACE
User Guide
JK Audio

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Summary of Contents for JK Audio Inline Patch

  • Page 1 Inline Patch ™ TELEPHONE AUDIO INTERFACE User Guide JK Audio...
  • Page 2 Or, check out our FAQ section for answers to common questions. Limited Warranty The Inline Patch is covered by a 1 year warranty to be free from defective workmanship and materials. To obtain service, contact JK Audio by phone or email for return authorization.

  • Page 3: Table Of Contents

    Contents Contents Overview Getting to know your Inline Patch ™ 2 Controls & Indicators 3 Inputs & Outputs Getting Connected Operation FAQs Technical Information Contents...
  • Page 4 Features Features Works with Analog Telephones 3.5mm Mono Line Input including Cordless Telephones 3.5mm Jack for Remote XLR Input and Output Jacks On-Hook / Off-Hook 3.5mm Stereo Output Front panel Separation control Left Channel= Line 20 dB Nominal Separation of Phone Line Right Channel = Phone Transmit / Receive Audio 3.5mm Mono Output...

  • Page 5: Overview

    A second output jack contains a mix of both voices. Front panel control for each output offers all the control you will need. The Inline Patch does not disrupt your Caller ID or ring signals.

  • Page 6: Getting To Know Your Inline Patch

    Getting to Know Your Inline Patch Controls & Indicators Phone Jack Connect a single line analog telephone. Lit when unit is plugged in and receiving power. From Phone Control Adjusts the level of your voice on both output mini jacks.

  • Page 7: Inputs & Outputs

    Getting to Know Your Inline Patch Inputs & Outputs Remote Control Jack Connect tip to ring to go off-hook Send Input (XLR) Balanced Female XLR line input for signals going into the phone line. Send Input (3.5mm) 3.5mm mono line level input for signals going into the phone line.

  • Page 8: Getting Connected

    Connect your audio equipment to the 3.5mm and / or XLR line input and output jacks on the Inline Patch. Connect the power supply to the back of the Inline Patch. POWER Note: If you want to use a microphone to add extra audio to the call, you will first need to add an amplifier to your microphone so that the signal is boosted to line level.
  • Page 9 / modem port. Instead of connecting the <Phone Line> jack of the Inline Patch to a wall jack, you will connect to the data / modem jack on your PBX phone. You will still need a regular analog telephone connected to the <Phone>...

  • Page 10: Operation

    Now turn the <From Line> control to about 12:00 and use the <From Phone> control to bring your voice up to a suitable level. The hybrid circuitry in the Inline Patch can provide a nominal 20 dB of transmit / receive isolation. When using the stereo jack with stereo speakers, the 20 dB isolation will give you substantial left / right separation.

  • Page 11: Faqs

    If you do not know what type of phone line you have, it is best to err on the side of caution and not connect it. Page 5 of this user guide illustrates how you may use the Inline Patch if you do not have an analog line. FAQs...

  • Page 12: Technical Information

    Technical Information Specifications Input Impedence / Level Female XLR 1k ohms / 250 mV RMS; -10 dBu nom.; 1/8” (3.5mm) Mono Line 20k ohms / 250 mV RMS; -10 dBu nom. Output 100 ohms / 500 mV RMS; -4 dBu nom.; Balanced Male XLR +14 dBu max 50 ohms / 250 mV RMS;...
  • Page 13 Technical Information Inline Patch Block Diagram Block Diagram...
  • Page 14 FCC. Your telephone company may make changes in its facilities, equipment, operations or procedures that could affect the proper functioning of your JK Audio product. If such changes are planned, you’ll be notified by your telephone company.
  • Page 15 Changes or modifications not expressly approved by JK Audio can void the user’s authority to operate the equipment. FCC Part 15 Compliance...
  • Page 16 ™ Inline Patch TELEPHONE AUDIO INTERFACE User Guide Version 4/16/22 JK Audio, Inc. 1311 E 6th St. Sandwich, IL 60548 United States Telephone: 815.786.2929 Toll Free: 1.800.jkaudio Fax: 815.786.8502 www.jkaudio.com © 2022 JK Audio, Inc. All rights reserved. JK Audio...