Cellular network data transmission system
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United States of America Patent
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-
Jul 5, 1994
Issued Date -
N/A
app pub date -
Jun 12, 1992
filing date -
Aug 31, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A data transmission network uses a cellular network as a primary telecommunications link and a backup telecommunications link. The system continuously monitors the links and switches to the back up link if the cellular link is not operative. Examples of backup links include long-range radio and fiber optics. A software package is included in a computer at a monitoring station for effecting integrity checks of the links, and RF fault modules are also included. The RF fault module can be used in conjunction with a control panel having one line output or with a control panel having two separate line outputs.
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