JK Audio innkeeper 4 - Manual (Page 2)

2
Introduction
Innkeeper multi line digital hybrids 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 chal-
lenge is getting the best quality audio from such a limited audio
path.
What is a Digital Hybrid?
A digital hybrid connects audio signals to a standard analog
telephone line without the variations in quality found with ana-
log hybrids. The main function of a hybrid is to bring in the call-
ers 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 sepa-
rate transmit and receive audio. We use a 16 bit DSP to con-
tinuously monitor the phone line and audio signals to 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 2/4 features diagrams 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.
19
FCC Registration
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.