innkeeper LTD Digital Hybrid User Guide JK Audio
Introduction Innkeeper LTD allows you to send line level signals into the phone line while maintaining excellent separation between your voice and the caller. The balanced XLR output jack contains only the caller’s voice, making this the perfect companion to mixers, consoles, and PA systems that demand talk show quality audio from a phone line. The digital hybrid connects audio signals to a standard analog phone line without the transmit/receive crosstalk common to analog hybrids.
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings and Safety Precautions . . . . . . . . . . . . . . . . . . . . . . 4 Features Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Setup diagrams Studio Mix-Minus Setup . . . . . . . . . . . . . .
Warnings and Safety Precautions 1. Read and keep these instructions. 2. Heed all warnings. 3. Follow all instructions. 4. Clean only with a soft dry cloth. 5. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 6. Do not defeat the safety purpose of the three-prong groundingtype plug. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 7.
Features—Front View 1 2 3 5 4 6 7 8 Figure 1: Front View 1. Call Button - Takes the phone line off hook - press this button to answer a call or to direct a call from your phone through the hybrid. 2. OH LED - Lit when you are on line with a call (off-hook). LED will flicker when you have an incoming call. 3. Drop Button - Press this button to drop (hang up) a call. 4. Send LEDs - Indicate the signal level going out to the phone line. 5.
Features—Rear View 9 10 11 12 13 14 15 Figure 2: Back View 9. Phone Line - Connect only to a standard, single line, analog telephone line. 10. Aux. Phone - Connect a single line analog telephone for call setup / dialing, or producer call screening. 11. Auto Answer - This button enables innkeeper LTD to automatically answer an incoming call and then disconnect after the caller hangs up. Auto Answer will occur on the first ring. 12.
Connection Connecting Cables Although each application will require a slightly different setup, there are some cables that everyone can agree upon: 1. Phone Line - Connect the supplied RJ-11 phone line cable between the jack marked “Line” and your wall jack. Be sure this jack can support standard single-line analog telephone operation. 2. Send Audio - Connect a line level audio signal from the output of your other equipment such as a mixing console or PA system, to the XLR Send jack on the innkeeper LTD. 3.
Studio Mix-Minus Setup Auxiliary telephone optional. Used to dial out to set up calls.
Studio Mix-Minus Setup Following the instructions in the owner’s manual for your audio mixer, connect your microphones, headphones and recording device and set the levels on your mixer. On the front of the innkeeper LTD, set the Send and Caller volume controls to center. To connect the innkeeper LTD to your mixer, use a balanced female XLR cable with an adapter if necessary (not included) to connect the Caller jack on the back of the innkeeper LTD to any unused Line input on the mixer.
Mix-Minus Explanations Why do I need a Mix-Minus Setup? Mix-minus is an audio signal that is designed to avoid feedback and echo in a conference or telephone interface application. When connecting a phone hybrid to a mixing console, the caller’s audio will be connected to an input channel on the mixer along with all the microphones, music, etc. All of these inputs combine to create the Master mix to be sent to your broadcast, recording device, or the speakers of your PA system.
Connection Simple Setup - Alternate for Mixer Setup Diagrams Auxiliary telephone optional. Used to dial out to set up calls. Caller to any line level input on mixer Aux Send A (pre-fader) on mixer to Send on hybrid Number of mics depends on mixer Use Main Outputs, USB or Firewire connectors to send audio to recording device For whichever input channel you have the Caller connected to, turn the corresponding Aux A control to minimum (usually hard left).
PA System Setup Auxiliary telephone optional. Used to dial out to set up calls. Speakers Inputs PA System Console Outputs Figure 5: PA System Setup Alternative to Mix-Minus Setup If your mixer does not have an Aux Send bus, you can achieve the same results using Pan controls with the Left and Right outputs. Simply pan the Caller to the Right output. Then connect only the Left output to the innkeeper LTD Send XLR. This signal should contain all inputs except the Caller.
Connection - Alternate Setup Diagrams Operation Auxiliary Telephone An auxiliary telephone provides you with an easy way to dial out or set up your calls. Innkeeper LTD will disconnect the auxiliary telephone when you press the Call button. If you need to take the call back on the aux telephone, simply pick up the telephone handset before the innkeeper LTD’s Drop button is pressed.
Operation Remote Control Jack The RJ-45 jack on the back of the innkeeper LTD provides connection to a JK Audio Guest Module 1* remote control device, or it can be wired to the switch contacts on your broadcast console. Do not connect this jack to the network port on your computer. RJ-45 Pinout: Pin 1: Pin 2: Pin 3: Pin 4: Pin 5: Pin 6: Pin 7: Pin 8: Ground Call / Drop Control (main control pin) Ring / OH LED DTMF Input +4.
FAQs ? ! Does the innkeeper LTD send a burst or beep down the phone line at the beginning of each call like our current hybrid? No, innkeeper LTD uses the actual transmit signal to evaluate the phone line and tune its algorithm. As you begin to speak, innkeeper LTD is hard at work canceling your voice from the Caller Output jack. Within milliseconds your voice is reduced into the noise floor.
Specifications Input Send: Output Caller: Balanced Female XLR, 20k ohms, 500 mV RMS (-4 dBu nom.) Balanced Male XLR, 200 ohms, 500 mV RMS, -4 dBu nom, +14 dBu Max. Remote Jack: RJ-45 Phone Line Jack: RJ-11C Isolation: 1500 VAC Ringer: 0.8B REN Frequency Response: Telephone side 200 Hz - 3600 Hz Power: 120-240 VAC power supply (included) Size: 7.6" x 5.3" x 1.5" (20 x 14 x 4 cm) Weight: 2.7 pounds (1.
Block Operation Diagram (continued) Figure 6: Block Diagram 17
FCC Part 15 Compliance This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial 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 communications.
FCC Registration (continued) b) The telephone equipment's FCC registration number. This can be found on the bottom of your telephone equipment, and, c) The ringer equivalence number (REN) for this equipment. The REN is used to determine the quantity of devices which will be connected to the telephone line. Excessive RENs on the telephone line may result in the devices not ringing in response to an incoming call. In most, but not all areas, the sum of the RENs should not exceed 5.0.
Warranty Innkeeper LTD is covered by a 2-year warranty to be free from defective workmanship and materials. In the event that the innkeeper LTD needs repair, you must call us to get an authorization, and then carefully pack and ship it to us. You will pay for shipping to us and 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.
