Switchable incremental attenuation for telephone line interface
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United States of America Patent
Stats
-
Apr 10, 1984
Issued Date -
N/A
app pub date -
Sep 2, 1983
filing date -
Dec 2, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-contained switchable, incremental attenuator device for interposing in a two line power circuit to attenuate the power level for proper power matching. The device includes a series of modulized, individually switchable attenuator circuits of differing attenuation values mounted upon a pluggable card for interfacing with input and output connectors of a circuit. The attenuation values of the sections are selected such that manipulating the switches will allow attenuation of the power level in the circuit by an integral multiple of a given base incremental value within a given range. The attenuator device is designed to mate with a mounting device for holding the attenuator in contact with the circuit connectors.
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