JK Audio innkeeper 1x-rx User Manual

Warranty

Innkeeper 1x and innkeeper 1rx are covered by a 2-year warranty to
be free from defective workmanship and materials. In the event that
the innkeeper 1x or innkeeper 1rx 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. THERE ARE NO EXPRESSED OR
IMPLIED WARRANTIES WHICH EXTEND BEYOND THE
WARRANTY HERE MADE.

innkeeper 1x

innkeeper 1rx

Digital Hybrid

03/07

JK Audio, Inc. 1311 E 6th Street, Sandwich, IL 60548 USA

Voice: [phone] Toll Free: 800-JK-Audio Fax: [phone]

[e-mail] www.jkaudio.com

Copyright © 2007 JK Audio. All Rights Reserved.

User Guide

JK Audio

Introduction

FCC Registration (continued)

Innkeeper 1x and innkeeper 1rx will allow you to send and receive audio
over analog telephone lines. While this may seem like a simple task that
any telephone can do, the challenge is getting the best quality audio from
such a miserable audio path.

What is a Digital Hybrid?
A digital hybrid connects audio signals to standard analog telephone lines
without the variation 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 to properly separate
transmit and receive audio. We use a 16 bit DSP (Digital Signal Processor)
to continuously monitor the phone line and audio signals and deliver
excellent separation. Our dual-convergence algorithm can achieve
excellent trans-hybrid loss, typically exceeding 50 dB, without any setup.

Ready to go?
The innkeeper 1x/1rx controls and connectors are clearly marked and
ready for operation. The innkeeper 1x comes in a desktop case and the inn­keeper 1rx has a rack mountable case. All features and operation are the
same. The Features diagrams and Operation sections on the following
pages will help you answer 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.

Features—Front View

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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. To be certain of the number of
devices that may be connected to the line, as determined by the
total RENs, contact the local telephone company.

3. Repair Instructions
If it is determined that your telephone equipment is

malfunctioning, the FCC requires that it not be used and that it
be unplugged from the modular outlet 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 temporarily discontinue your telephone
service. If possible, they'll notify you before they interrupt
service. If advanced notice isn't practical, you'll be notified as
soon as possible. You'll be given the opportunity to correct the
problem, and you'll be informed of your right to file a complaint
with the 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.

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FCC Part 15 Compliance

Features—Front View

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. Operation of this equipment
in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own
expense.

Changes or modifications not expressly approved by JK Audio can
void the user's authority to operate the equipment.

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 connect this telephone equipment to

the national telephone network through a USOC RJ-11C
modular telephone jack.

This equipment may not be used with Party Line Service or Coin

Telephone Lines.

This equipment is hearing aid compatible.

2. Information for the telephone company
Upon request from your local telephone company, you are

required to provide the following information:

a) The "line" to which you will connect the telephone

equipment (that is, your telephone number), and

1 Call Button - Takes the line off-hook - press this button to answer a

call or you can direct a call from your aux phone through the hybrid.

2 Drop Button - Press this button to drop (hang up) a call.
3 Send Level - Adjusts the signal that you are sending down the

telephone line.

4 Caller Level - Adjusts the level of the signal coming in from the

telephone line, going out the “Caller” jack.

5 Send > Mix Level - Adjust the level of your audio that will be sent to

the “Mix Out” jack.

6 Mix < Caller Level - Adjusts the level of caller audio that will be sent

to the “Mix Out” jack.

7 Headphones - The stereo headphone jack contains the signal you have

created with the Send > Mix and Mix < Caller level controls. Both left
and right channels get the same signal.

8 Mix Monitor - Adjusts the mix signal level sent to the headphone and

rear panel speaker terminals.

9 Ring LED - Flickers when you have an incoming call.
10 OH LED - Lit when you are on line with a call (off-hook).
11 Signal LEDs - Send LEDs represent the signal level going out to the

telephone line. Receive LEDs represent the signal level coming from
the phone line, after the DSP.

12 AGC - press this switch to allow the innkeeper 1x/1rx to automatically

adjust the gain of caller audio so all callers are received at an average
level..

13 Caller Ducking - press this switch to lower the caller’s audio level by

9 dB when local audio is present.

14 Presence - press this switch to boost the low end of the caller audio

signal. Presence is added to the caller audio signal only.

15 1 kHz tone generator - press switch once to send a full scale 0 dB,

maximum output level 1kHz tone down the phone line, press again to
send this signal out the Caller jack, press a third time to turn off.

16 Auto-Answer - Press this switch to enable the innkeeper to automati-

cally answer an incoming call and then disconnect after the caller
hangs up. Auto answer will occur on the first ring.

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