JK Audio COMP Data Sheet

ComPack

ComPack

Universal Telephone Audio Interface

Product Overview

This single pack provides audio connections to cell phones, PBX
phone systems, and plain analog phone lines. Perfect for
Remote Broadcasts, IFB feeds, or interviews over any phone
connection.

Cell Phones: Simply plug ComPack into the 2.5 mm headset jack
of your wireless cell phone.
Your phone will recognize ComPack as a headset which will
disable the mic and speaker in the phone.

PBX Systems: Unplug the handset from any analog or digital
PBX phone and plug the coily cord into ComPack. You can now
send and receive audio through the PBX telephone set.

Analog Phones: Plug ComPack into an RJ-11 jack, go off-hook
and dial, or answer an incoming call.

ComPack also functions as a simple telecom interface for your
beltpack intercom system. This no-frills feature allows you to
connect the 3 pin XLR to your beltpack intercom group to provide
a full duplex, always-on connection to any telephone network.

The ComPack cell phone interface was designed
to take advantage of the increasing number of
wireless phones that accept third party headsets
and earpiece headsets. We've designed a circuit
which emulates the electrical characteristics of
these headsets. While some wireless phones have
the 2.5 mm jack directly on the phone, others
require a headset adapter which converts their
proprietary connector into this 2.5mm jack.

JK Audio

Telephone Interface Products
815-786-2929 1-800-JK-Audio www.jkaudio.com

ComPack

ComPack

Universal Telephone Audio Interface

XLR

Input

3.5mm
Line

Input

JK Audio, Inc.

Block Diagram

1/10/02 - WR

mic/line

switch

ComPack

Clip
LED

FCC
signal
limiter

DTMF

Keypad

Hybrid

Transformer

Universal PBX

Interface

ABC Switch

Headset
Emulator

Circuit

Isolation

Transformer

Hybrid

Transformer

Ring LED

RJ-11

Phone Line

Jack

RJ-22

Handset

Jack

1/4" TRS
Cellular

Interface

Switch Selects

XLR Function

Line

Output

Intercom

LInk

Specifications:

Inputs: Female XLR, 1000 ohms, mic/line switchable

3.5 mm line input, 20 k ohms, -10 dBm RMS

Outputs: Male XLR, 600 ohms balanced in phone mix output mode

bidirectional unbalanced in intercom mode.

¼” Headphone output, 8 ohms, 500 mW
Power: one 9 volt battery, AC power supply (included).
Size: 8” x 3” x 2.2” (20.3 x 7.6 x 5.6 cm)
Weight: 1.5 pounds

Shoulder strap included.

1/4"

Headphone

Jack

JK Audio

Telephone Interface Products
815-786-2929 1-800-JK-Audio www.jkaudio.com