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Overview

Introducing the innkeeper PBX™ 

Innkeeper PBX easily converts your multi-line PBX type telephone system into 

a professional, affordable talk show console. Simply connect between your tele

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phone handset and the phone base.

 

What is a Digital Hybrid?

 

The innkeeper PBX digital hybrid connects audio signals to and from the handset 
side of a telephone without the variations in quality found with analog hybrids. 
The main function of a hybrid is to bring in the caller’s voice from the phone line 
as clear and clean as possible. In the real world, when you send your voice down 
the telephone line it has a tendency to bleed over into the caller’s audio. The 
hybrid must adapt to the phone line in order to properly separate transmit and 
receive audio. We use a 16 bit DSP (Digital Signal Processor) to continuously 
monitor the phone line and local audio signals to deliver excellent trans-hybrid 
loss, also known as separation. Our dual-convergence algorithm can achieve 
excellent separation, typically exceeding 50 dB. 

Ready to go?

 

The innkeeper PBX 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 Innkeeper PBX

Page 1: ...JK Audio User Guide innkeeper PBX VoIP PBX Desktop Digital Hybrid...

Page 2: ...n questions Limited Warranty The innkeeper PBX is covered by a 2 year warranty to be free from defective workmanship and materials To obtain service contact JK Audio by phone or email for return autho...

Page 3: ...Contents Contents Overview 1 Getting to know your innkeeper PBX 2 Controls Indicators 4 Inputs Outputs 2 Getting Connected 6 Configuration 8 Operation 9 FAQs 10 Technical Information 12 iii Contents...

Page 4: ...Input Mic Line Switch 3 5mm Mono Line Input Caller XLR Line Output 3 5mm Stereo Line Output 3 5mm Headphone Jack Send and Caller Signal Level LEDs Send and Caller Volume Controls Handset Selector Swi...

Page 5: ...to the phone line in order to properly separate transmit and receive audio We use a 16 bit DSP Digital Signal Processor to continuously monitor the phone line and local audio signals to deliver excel...

Page 6: ...djusts the signal level that you are sending down the telephone line through the female XLR input 4 Send 2 Level Adjusts the signal level that you are sending down the telephone line through the 3 5mm...

Page 7: ...loud speech bursts If the red LED stays lit for extended periods you can assume that much of your speech is being clipped or distorted In this case you should lower the Send volume control for the inp...

Page 8: ...elect the correct type of handset microphone that your telephone uses A Electret B Carbon C Dynamic 4 Caller Output Male balanced XLR output contains only the caller s voice 5 Send 1 Input Female bala...

Page 9: ...ni jack contains both Send and Caller audio channels with levels determined by the Send 1 and Send 2 level controls and the Caller level control Left channel contains your local Send audio and right c...

Page 10: ...nect a headphone to the front of the innkeeper PBX 5 Connect a stereo cable from the mini jack Stereo Out on the Innkeeper PBX to the Line In on your computer sound card or other recording equipment t...

Page 11: ...ing Setup 12 Connect the supplied DC power supply to the back of the Innkeeper PBX and then to an AC power outlet 13 Place a test call to a quiet location Set the A B C switch on innkeeper PBX for bes...

Page 12: ...ng guidelines may help The majority of newer telephones have electret or dynamic type microphones and will use the A or C position Older telephones that have the round screw type handsets contain carb...

Page 13: ...remove the handset during your call as this will change the input impedance from the phone line and change the audio level If you need to take the call back on your telephone press the Handset button...

Page 14: ...nnect No the handset cord on your phone is only active if the handset is off hook This must be done manually So there is no way to auto disconnect You must return the handset to the cradle 5 I have ev...

Page 15: ...ct another device such as a CD player the Line Out from your computer or even the output of your personal audio player to add audio to the conversation This enables you to play background music or oth...

Page 16: ...ird Block Diagram Technical Information Phone Jack Handset Jack Caller Out Monitor level Headphone Stereo Output R Caller L Send Caller Send 1 Level Send 2 Level Mic Line Send Input Line level Send 2...

Page 17: ...dBu max Caller Only 1 8 3 5mm Stereo 50 ohms 250 mV RMS 10 dBu nom 6 dBu max Left Send Right Caller Headphone 1 4 Stereo 8 ohms 250 mW Mixed Send and Caller Misc Phone Base RJ22 Handset RJ22 Isolation...

Page 18: ...UL Standard 60950 01 1st edition EN 55024 1998 EN 61000 3 2 EN 61000 3 3 EN 55022 2006 AS NZS CISPR 22 2006 FCC Part 15 Subpart B ICES 003 AS ACIF S002 2005 FCC CFR 47 Part 68 TIA968 A 1 A 2 A 3 A 4...

Page 19: ...ection of the manual 4 Rights of the telephone company If telephone equipment is causing harm to the network the telephone company may temporarily discontinue your telephone service If possible they l...

Page 20: ...ndwich IL 60548 United States Telephone 815 786 2929 Toll Free 1 800 jkaudio Fax 815 786 8502 www jkaudio com 2019 JK Audio Inc All rights reserved JK Audio innkeeper PBX VoIP PBX Desktop Digital Hybi...

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