3-3
battery charger (refer to drawing
). Communication is accomplished using a terminal emulation
program, such as
TeraTerm
. The serial port settings are 9600,N,8,1, and there is no flow control.
3.1.2.2
Connecting to the Beacon
When the beacon senses that valid RS232 levels are present on the bulkhead connector an interrupt is
generated, causing the beacon to go into programming mode. The beacon will send the user a text block
that includes its firmware version, serial number, and operational setting. An example is listed below:
EdgeTech model 4380 transponder
Firmware ver. 1.00
Serial # 35782
Interrogate frequency
:
18.0 KHz
Nav. reply Freq
:
23.000 KHz
Nav. Pulse Width
:
1.5ms
Tel. reply Freq
:
24.000 KHz
Tel. Pulse Width
:
1.5ms
Timed pinger mode
:
OFF
Timed pinger rate
:
002.0 Sec
Pressure telemetry
:
OFF
Aux. A/D telemetry
:
OFF
Rec. sensitivity
:
Low
Battery
:
15.894v
Charge status
:
Charging, No fault
Turnaround time
:
100 mS
Responder Lockout
:
01.0 sec
Transponder Lockout
:
02.0 sec
Output Power
:
High
3.1.2.3
Serial Commands
Serial commands are not case sensitive; the user may use upper or lower case letters. However, the
command format cannot be deviated from, and all leading and trailing zeroes must be included. When
the beacon receives a valid command, it will respond with an asterisk ( * ). If the Beacon does not recognize
the command it will reply with a pound sign ( # ). Through the serial port, the user can:
Select one of six possible interrogation frequencies: 16.0, 17.0, 18.0, 19.0, 20.5 and 21.5 KHz.
Load the beacon with any one of a number of Navigation and Telemetry reply pulses. The reply
pulse library is included on the CD with the manual.
Select timed pinger mode of operation and set the timed pinger rate anywhere for 001.0 to 499.9
seconds.
Enable or disable the pressure telemetry feature.
Enable or disable the auxiliary telemetry feature.
Change the receive sensitivity to high or low.
Check the battery voltage.
Check the battery charge status.
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