Universal Host
Desktop Digital Hybrid
JK Audio
User Guide
Page 1: ...Universal Host Desktop Digital Hybrid JK Audio User Guide ...
Page 2: ... 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 audio signals from the telephone 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 sep...
Page 3: ...one line as it is going out the output jacks 6 Headphone Level Adjusts the signal level coming from the 3 5mm front panel headphone jack 7 Hybrid USB Selects audio heard at the headphone output 8 Headphones The 3 5mm stereo headphone jack contains either a mix of both the Send input audio and the Caller audio when the button is in the Hybrid position or stereo audio from the USB port with the butt...
Page 4: ... Sets the front end sensitivity of the Send 1 XLR jack Set to Mic if you intend to connect a dynamic microphone directly to the Send 1 jack Set to Line if you are connecting to the output of a mic mixer 18 USB port for bi directional audio connection to your computer or other equipment 19 Send 2 Mono Input 3 5mm mono mini jack input for signals going into the phone line Line level 20 Stereo Output...
Page 5: ...o the hybrid or deliver live audio out for recording or streaming Output Connect a stereo cable from the mini jack Stereo Out on the Universal Host to the Line Input on your desktop PC sound card mini disk recorder or other equipment Power Connect the supplied DC power supply to the back of the Universal Host and then to an AC power outlet Place a test call to a quiet location Set the A B C switch...
Page 6: ...ice or broadcasting equipment inputs For whichever input channel you have the Caller connected to turn the corresponding Aux control to minimum usually hard left All other Aux controls should be set for what you want to send to the phone line Each Aux Send bus is completely separate from all other outputs so these Aux controls will not affect what is heard on the Main outputs or on any other Aux b...
Page 7: ...If the Receive LEDs on the Univer sal Host are lighting the red 3 dB use the controls on the base of your telephone to reduce the incoming Caller volume On your mixer set the Aux Send control so that while you are speaking into the microphone the Send LEDs on the hybrid light the 20 dB green LED consistently and flash the 9 dB green LED An occasional flash of the 3 dB red LED is acceptable If the ...
Page 8: ...he hybrid when you press the Broadcast button Optional Jumper Settings There is a jumper located inside the Universal Host at J9 that affects handset operation The factory default closed position jumper covering both pins disables only the handset microphone when the Broadcast button is pressed Changing the jumper to the open position either remove the jumper or cover just one pin allows you to co...
Page 9: ... use Your Universal Host will only function correctly if the handset type selector switch is in the correct position This switch changes signal level impedance and wiring to accommodate the differences in handset microphone types Although not conclusive the following guidelines may help Many AT T SW Bell and Sony telephones have electret type microphones and will use the A position Only older tele...
Page 10: ...with a standard handset Can Universal Host auto answer or auto disconnect 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 I have everything connected correctly Why can t the caller hear me There are two things you should check First the position of the A B C switch...
Page 11: ...switch When the Universal Host is on line simply select which phone line you want to talk to either dropping the last caller or putting them back on hold Do I need any software drivers for the USB interface No the USB interface is plug and play compatible Why is there a Send 2 mini jack on the back of my Universal Host This is a second line level input to Universal Host Here you can connect anothe...
Page 12: ...dBu nom 6 dBu max Left Send Right Caller Headphone 3 5mm stereo 8 ohms 1 2 watt per channel mixed send and receive USB Connector Mini Type B female Standard v 2 0 Sampling Rates 32 kHz 44 1 kHz 48 kHz Signal Processing 16 Bit stereo Phone Line Aux Phone RJ22 Phone Line RJ22 Isolation 1500 VAC Ringer 0 5B REN Frequency Response Telephone side 200 Hz 3600 Hz Power 120 240 VAC power supply included S...
Page 13: ...13 Block Diagram ...
Page 14: ...s or modifications not expressly approved by JK Audio can void the user s authority to operate the equipment FCC Part 15 Compliance FCC Registration Your new JK Audio product has been registered with the Federal Communications Commission FCC This product complies with the standards in Part 68 of the FCC rules 1 Connection and use with the nationwide telephone network The FCC requires that you conn...
Page 15: ...tlet until the problem has been corrected Repairs to this telephone equipment can only be made by the manufacturer or its authorized agents or by others who may be authorized by the FCC For repair procedures follow the instructions outlined under the warranty section of the manual 4 Rights of the telephone company If telephone equipment is causing harm to the network the telephone company may temp...
Page 16: ...d we will pay for return back to you UPS ground No free repairs will be made if the defect was caused by misuse weather conditions or other cause except for defective workmanship or materials THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES WHICH EXTEND BEYOND THE WARRANTY HERE MADE 1010 JK Audio Inc 1311 E 6th Street Sandwich IL 60548 USA Voice 815 786 2929 Toll Free 800 JK Audio Fax 815 786 8502 inf...
