JK Audio TAP1 Data Sheet
JK Audio
FEATURESFEATURES
600 ohm RCA line in and out
•
Recessed input and output
•
volume controls
Hybrid null adjustment
•
optimizes transmit and
recieve seperation to >50 dB
Put two units back-to-back or
•
through a mixer for TV or lm
studio recording
Put an analog telephone on
•
your sound card for internet
telephone use
TAP-1
The TAP-1 is a phone line simulator for simple audio applications,
that powers an analog telephone with the required –48 volts DC
and separates audio into transmit and receive audio paths. The
TAP-1 acts like an RJ-11 wall jack in your home. You may not
know it, but the telephone company sends power down into your
wall jack, and you use it to power your phone. This power is
sent over the two wires called Tip and Ring. These two wires
form a balanced, two-way voice path which can be sent miles
with minimal noise and signal loss. This two-wire interface
can be a burden if you just want to get audio in and out of a
telephone without connection to the telephone company. The
TAP-1 provides the Tip/Ring interface and –48 volt supply and
then separates audio into transmit and receive. This is called
a 2-wire to 4-wire hybrid. The bottom line... the TAP-1 can be
used on TV or lm studio sets where a telephone or cordless
telephone is used on set and you want to get audio into and out
of the telephone. You can also use the TAP-1 to test telephones,
voice coding algorithms, or phone line equipment. The TAP-1 is
built to very high specs for laboratory testing use.
TELEPHONE LINE SIMULATOR
JK Audio
www.jkaudio.com ⁄ 1311 East 6th Street Sandwich, IL 60548 USA ⁄ Phone: [815] 786.2929 ⁄ Toll Free: [800] 552.8346
Copyright © 2008 JK Audio, Inc.
JK Audio
Hybrid
In Out
RCA
Input
Level
Output
Level
Telephone Jack
Null
Adjust
TAP-1
TELEPHONE LINE SIMULATOR
Specications
Impedence Level
RCA
Line in
600 ohms
(-10 dBm nom.)
RCA
Line out
Phone Line
Impedence
DC Voltage -48VDC (open circuit)
DC series
resistance:
DC Current
Hybrid Loss:
Max:
Trans-
600 ohms
510 ohms
480 ohms Size:
70 mAn (short circuit) Weight: 1.3 lbs (600 grams)
>50 dB at 1 kHz
Input
250 mV RMS
Output
250 mV RMS
(-10 dBm nom)
Power
Bandwidth
60 Hz - 15 kHz (+/- 3 dB)
120 Hz - 8 kHz (+/- 1 dB)
180 Hz - 12 kHz (+/- 3 dB)
300 Hz - 6 kHz (+/- 1 dB)
18 VAC, 160 mA
(120 VAC, UL approved
transformer supplied)
5.1" x 5.2" x 1.6"
(13 x 13.2 x 4.1 cm)
www.jkaudio.com ⁄ 1311 East 6th Street Sandwich, IL 60548 USA ⁄ Phone: [815] 786.2929 ⁄ Toll Free: [800] 552.8346
JK Audio
Copyright © 2008 JK Audio, Inc.
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