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Overview

1

Introducing the Inline Patch™ 

This unique hybrid works with your telephone to give you more control over 

interview recording and playback.
The Inline Patch connects between the base of an analog or cordless telephone 

and the wall jack. You can continue to talk on the phone and get access to audio 

on both sides of the call. The unit’s two back-to-back hybrids give you complete 

control of audio from both sides of the call. Audio input jacks let you mix sound 

bytes or music into your conversation. One stereo output jack provides your voice 

on one channel and the phone line audio on the other channel. 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.
For telecom demo or teleconference presentations, you can use a cordless 

telephone. Walk around the room and talk over the phone while everyone listens 

in. Let the audience try your IVR application. The <Off Hook/Normal> switch lets 

you seize a phone line without using a telephone. This switch can be remote-

controlled with a simple contact closure.
The Inline Patch is also perfect for television or cable talk show use, when you 

may need access to audio from a working telephone on camera. 

Ready to go?

 

The Inline Patch controls and connectors are clearly marked and ready for 

operation. The Features diagrams and Operation sections on the following pages 

will help you pinpoint any minor questions that you may have. If this is your first 

exposure to a hybrid, we suggest that you read the entire manual to allow you to 

take advantage of all these features. 

Any Questions? 

Before you pick up the phone... Please thumb through the rest of this manual. 

You might find those deep technical questions are covered on later pages. 

Overview

Summary of Contents for InlinePatch

Page 1: ...TELEPHONE AUDIO INTERFACE JK Audio Inline Patch User Guide...

Page 2: ...e 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 Once authorized you wil...

Page 3: ...Contents Overview 1 Getting to know your Inline Patch 2 Controls Indicators 3 Inputs Outputs 2 Getting Connected 4 Operation 6 FAQs 7 Technical Information 8 Contents iii Contents...

Page 4: ...put and Output Jacks 3 5mm Stereo Output Left Channel Line Right Channel Phone 3 5mm Mono Output 3 5mm Mono Line Input 3 5mm Jack for Remote On Hook Off Hook Front panel Separation control 20 dB Nomin...

Page 5: ...om demo or teleconference presentations you can use a cordless telephone Walk around the room and talk over the phone while everyone listens in Let the audience try your IVR application The Off Hook N...

Page 6: ...ntrol Fine tunes voice separation See page 6 for tuning 5 From Line Control Adjusts the level of the audio coming from the phone line on all three output jacks 6 Send Level Adjusts the signal level th...

Page 7: ...R line output which contains only the audio coming from the phone line with a nominal 20 dB of trans hybrid loss your voice will be mixed with the caller s audio but about 20 dB lower than your send l...

Page 8: ...ine Patch 4 Connect the power supply to the back of the Inline Patch 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 t...

Page 9: ...will still need a regular analog telephone connected to the Phone jack of the Inline Patch When dialing out you will need to take the necessary steps to get a direct connection to the main analog phon...

Page 10: ...VU meter etc to the Mixed Mono output jack on the back of the Inline Patch 2 Next turn the From Phone control all the way down and the From Line control all the way up 3 Now place a phone call Without...

Page 11: ...re not all the same 4 I m using a MP3 player with an Inline Patch to send audio down the phone line and then recording that audio with the caller s comments The MP3 audio is overpowering the caller au...

Page 12: ...eo 50 ohms 250 mV RMS 10 dBu nom 12 dBu max Left Send Right Caller 1 8 3 5mm Mono 50 ohms 250 mV RMS 10 dBu nom 12 dBu max Mixed Send and Caller Phone Line RJ11C Isolation 1500 VAC Phone RJ11C Voltage...

Page 13: ...chnical Information Inline Patch Block Diagram Hybrid Hybrid XLR Line in Send Level 1 8 Line in Phone Jack Phone Line Jack Separation From Line Level XLR From Line out From Phone Level 1 8 Stereo out...

Page 14: ...ng call In most but not all areas the sum of the RENs should not exceed 5 0 To be certain of the number of devices that may beconnected to the line as determined by the total RENs contact the local te...

Page 15: ...environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communi...

Page 16: ...IO 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...

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