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Digital Alert Systems
DASDEC-III Hardware/Installation Guide
Serial Port Wiring
Each EAS device has one RS-232 serial port on the back panel. The serial ports connect to and drive a
variety of external video character generators and BetaBrite LED signs. The software supports a wide
variety of serial protocols, including the most commonly used protocols in legacy EAS equipment, such
as TFT Standard and Sage Generic.
An optional USB/serial port expander can provide up to four additional RS-232 serial ports. This option
is useful when additional character generators and LED signs are needed.
Each serial port has the same pin-out, as shown below.
Serial Port Conns (Chassis Side)
Page 13 of 16
Revision 1.0
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