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About This Manual

The SignalOn Return Path Amplifi er covered in this user manual is part of the SignalOn family of plug-in modules. The Return
Path Amplifi er provides gain amplifi cation with low distortion and low noise for a broadband communications system return
path (5 MHz to 200 MHz).
The SignalOn system uses a modular design that allows for high isolation combining, splitting, amplifi cation, redundant
switching, and status monitoring of the headend signals in a broadband communications system. The SignalOn system
provides strong cable management, EMI shielding, and ease of use, all of which facilitate reconfi guration and enhance
performance within a dynamic headend environment.

Admonishments

Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment.
An admonishment identifi es a possible hazard and then explains what may happen if the hazard is not avoided. The
admonishments — in the form of Dangers, Warnings, and Cautions — must be followed at all times. These warnings are
fl agged by use of the triangular alert icon (seen below), and are listed in descending order of severity of injury or damage
and likelihood of occurrence.
Danger: Danger is used to indicate the presence of a hazard that will cause severe personal injury, death, or substantial
property damage if the hazard is not avoided.
Warning: Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial
property damage if the hazard is not avoided.
Caution: Caution is used to indicate the presence of a hazard that will or can cause minor personal injury or property
damage if the hazard is not avoided.

General Safety Precautions

The following general admonishment applies to all the procedures in this manual.
Warning: To avoid electric shock or severe burns, be careful when working near power supplies. The Return Path Amplifi er
operates on –48 VDC offi ce power or 100–240 VAC.
Certifi cation
The SignalOn active products have been tested and found to comply with the following requirements:
UL 1419
CE
CISPR-22
EN 60950 (Safety)

Standards

The following listing is a bibliography of applicable ANSI and Bellcore documents:
TR-EOP 000063
TR-TSY 000332
SignalOn
Series – Return Path Amplifi er – Installation & Operation Manual
®
Bellcore Technical Reference for environmental testing, EMI, mechanical shock and vibration,
storage temperature, humidity, electrical grounding, etc.
Bellcore Technical Reference for predicting reliability.
PREFACE
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