APPENDIX B. CONTROL PORT SERIAL I/O INSTRUCTION 15
B-23
B.8 SUMMARY OF BAROMETER JUMPER CONFIGURATIONS
Jumper #76543210
Barometer mode (serial output) u u r r nn00
Barometer mode (parallel output) uu0bnn01
Altimeter mode (serial output) u u r r nn10
Altimeter mode (parallel output) uu0bnn10
Altimeter setting mode (serial output) r r 10nn11
Altimeter setting mode (parallel output) * * 11nn11
Test mode (serial output) r r 1 1 t t 0 1
Units of output -
Barometer modes mb 0 0 ------
in(Hg) 01------
mm(Hg) 10------
PSIA 11------
Units of output -
Altimeter modes ft 0 0 ------
m 01------
ft/in(Hg) 10------
m/mb 11------
Number of measurements averaged -
All modes 1 ----00--
10 ----01--
100 ----10--
1000 ----11--
Serial output baud rate -
Barometer mode and 9600 - - 0 0 - - - -
Altimeter mode 1200 - - 0 1 - - - -
300 - - 1 0 - - - -
110 - - 1 1 - - - -
Serial output baud rate -
Altimeter setting mode and 9600 0 0 ------
Test mode 1200 0 1 ------
300 10------
110 11------
Parallel output data format -
Bar parallel mode and ASCII coded output - - 0 0 ----
Alt parallel mode Binary coded output - - 0 1 ----
Test mode tests -
Raw data/press (mb) ----00--
Serial ID test ----01--
SA test ----10--
Raw data ----11--
Key to table abbreviations -
r = Serial output baud rate
n = Number of measurements to be averaged
b = Format of parallel output - binary/ASCII coded
u = Units of output
* = Don't care - jumpers must be in place however
t = Test type
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