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Peripherals
Peripherals - Engineering
EAS (Emergency Alert System)
Overview
The Emergency Alert System (in this example for the United States of America) is a national
public warning system that requires TV and radio broadcasters, cable television systems,
wireless cable systems, satellite digital audio radio service providers, direct broadcast satellite
service providers and wireline video service providers to offer to the U.S. President the
communications capability to address the American public during a national emergency. The
system also may be used by state and local authorities to deliver important emergency
information such as AMBER (missing children) alerts and emergency weather information
targeted to a specific area.
The FCC works with the Federal Emergency Management Agency and the National Oceanic
and Atmospheric Administration's National Weather Service to implement the EAS at the
national level.
The EAS allows participating providers to send and receive emergency information quickly and
automatically, even if their facilities are unattended. If one link in the system for spreading
emergency alert information is broken, members of the public have multiple alternate sources
of warning. EAS equipment also provides a method for automatic interruption of regular
programming, and in certain instances is able to relay emergency messages in languages other
than English.
Setup
The EAS system used was a Sage ENDEC connected to the Masterpiece mainframe via
RS232/RS422 to RJ45.
The Masterpiece system has to be running V3.2r1 software or greater.
Sage ENDEC
Network Cable
Masterpiece Control Surface
Touchscreen GUI
COM3 - RS232 to
RS422
RJ45 (serial port)
on Masterpiece
Three Pin Digital
Audio Out
Connector block
25 Way D-type
AES In 4
25 Way D-type
GPI/O
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