Intrinsic safety module interface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 4, 1990
Grant Date -
N/A
app pub date -
Aug 19, 1988
filing date -
Aug 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An interface system interconnects a common power supply and plural data communications paths located in a safe environment to a plurality of load devices located in a flammable atmosphere. A module power attenuator attenuates the electrical power output level of the common power supply to a first predetermined level for application to the load devices. A digital signal attenuator attenuates the electrical power level between data communications paths to a second predetermined level for application to the load devices. Coupling devices are utilized to maintain electrical segregation but allow communication to and from the safe environment.
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