Lectrosonics TH1 Operating Instructions Manual

TH1

ACTIVE TELEPHONE HYBRID MODULE

OPERATING INSTRUCTIONS

and trouble-shooting guide

LECTROSONICS, INC.

Rio Rancho, NM

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INTRODUCTION

The TH1 Active Telephone Hybrid provides a convenient way to use a Modular Audio Processing sound system for
teleconferencing purposes. The TH1 works with any standard two wire telephone system. A powerful Digital Signal
Processor (DSP) actively adjusts the line balance to achieve maximum transmit and receive signal separation. In
addition, echo suppression based on Lectrosonics unique Adaptive Proportional Gain algorithm minimizes acoustic
echo while maintaining near full-duplex operation.

TABLE OF CONTENTS

INTRODUCTION .......................................... 3

FCC PART 68 COMPLIANCE ................................. 4

GENERAL TECHNICAL DESCRIPTION .......................... 5

INSTALLATION ........................................... 6

FRONT PANEL DESCRIPTION ................................ 7

REAR PANEL DESCRIPTION ................................. 8

OPERATING INSTRUCTIONS ................................. 9

TROUBLESHOOTING ....................................... 10

SPECIFICATIONS ......................................... 10

SERVICE AND REPAIR ..................................... 11

RETURNING UNITS FOR REPAIR ............................. 11

WARRANTY ........................................ Back cover

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FCC PART 68 COMPLIANCE

This equipment complies with Part 68 of the FCC rules. On the rear panel of this
equipment is a label that contains, among other information, the FCC registration
number and ringer equivalence number (REN) for this equipment. If requested,
this information must be provided to the telephone company.

This equipment uses the following USOC jacks: RJ11C

The REN is used to determine the quantity of devices which may be connected
to the telephone line. Excessive REN’s 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 REN’s should not exceed five (5.0). To be certain of the number
of the devices that may be connected to the line, as determined by the total
REN’s, contact the telephone company to determine the maximum REN for the
calling area.

If this equipment causes harm to the telephone network, the telephone company
will notify you in advance that temporary discontinuance of service may be
required. If advance notice isn’t practical, the telephone company will notify the
customer as soon as possible. Also, you will be advised of your rights to file a
complaint with the FCC if you believe it is necessary.

The telephone company may make changes in it’s facilities, equipment,
operations, or procedures that could affect the operation of the equipment. If this
happens, the telephone company will provide advance notice in order for you to
make the necessary modifications in order to maintain uninterrupted service.

If trouble is experienced with this equipment, please contact Lectrosonics, Inc. at
[phone] for repair and/or warranty information. If the trouble is causing
harm to the telephone network, the telephone company may request you remove
the equipment from the network until the problem is resolved.

The following repairs can be done by the customer: No user serviceable parts
inside.

This equipment cannot be used on telephone company-provided coin service.
Connection to Party Line Service is subject to state tariffs.

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