SECTION II. EQUIPMENT DESCRIPTION AND DATA

TM 11-5920-252-24

SECTION II. EQUIPMENT DESCRIPTION AND DATA

Section Contents

Paragraph

Capability and Features .............................................................

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Characteristics ............................................................................

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Location and Description of Major Components.........................

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Safety, Care and Handling..........................................................

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1-6.

CAPABILITY AND FEATURES

CAPABILITY

The arrester provides 48 input lines (circuits to communications equipment connected to external input lines (circuits)).

The arrester purpose is to inhibit (stop) external high energy induced voltages from damaging the communications

equipment.

Since the external cables and lines are the ones subject to the high energy induced voltages, the arrester protects the

communications equipment from the high energy induced voltages.

FEATURES

Each of the 48 lines of the arrester has a spark gap which shorts out any high energy induced voltage resulting from

lightning or a nuclear explosion.

Each of the 48 lines of the arrester has a transorb (back-to-back diode) which prevents the line (circuit) voltage from

exceeding 140 volts in the negative and positive direction from ground.

The arrester has 48 lines (circuits), therefore the arrester will provide protection for 12 4-wire channels.

The arresters are to be used in a shelter environment, and are not intended for use in weather conditions where moisture

is present.

The arrester consists of passive networks (operating dc power is not used and circuit components are not intended to alter

the output signals). Therefore more than one arrester can be used with only physical installation and hook-up required.

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