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ATLANTIC SATELLITE CORPORATION
MODEL ASC300LW
BEACON RECEIVER
18
11.0 Continuous Digital Streaming
351L STREAMING
The streaming option associated with the ASC351L series of beacon tracking receivers provides a
continuous data stream running at 9600 baud that contains signal strength level indication in
centiVolts as well as lock or alarm condition of the unit. A dedicated DB-9 (J4), on the rear of
theunit, provides the RS-232 streaming interface. The DB9, RS-232, pin out is:
Pin 2: serial output
Pin 5: ground
The protocol for the data stream is as follows:
9600,N,8,1
There is a 500 ms delay between transmissions.
The output data format is:
#(delimiter)1 or 0 (Lock or Alarm), space, followed by the signal strength voltage in centiVolts
(cV).
As an example, for signal strength of 7.50 Volts and the unit locked the data string would be:
#1 750
If the unit is not locked the data string would be:
#0 0
