TAT: Total Air Temperature
SAT: Static Air Temperature
TAS: True Airspeed
Some info about the unit...
Brad: Smith Industries
PN: 2261-02-1
How this works...
This unit needs 26VAC 400Hz power supply, and it is fully digital.
It is featured with one Arinc 429 low speed bus input (12.5 KHz), which expects three Labels.
The Labels (written in Octal) are:
TAT: 211
SAT: 213
TAS: 210
Pinout info...
This unit is easy to open and doing back engineering I got the following:
A picture of the device during the BITE test:
Hi ,
ReplyDeletefirst of all , thank you for your great job and the informations you are sharing on the web .
I am building a 737-322 and bought a Fuel Quantity Indicator (BFGoodrich) like yours (same P/N):
connected it like indicated , with the " circuito de prueba " ; it gives an indication of error 2 ,
sometime when switching it i have a fuel indication , but comes back to error2 after a few seconds .
Question 1 :could you confirm the pinouts allocations ?
Question 2 : what is the "shape" of the information you send it from your sim ?
thanks a lot for your great work and thank you for your help ,
Boullu guy ... boullu.guy(a)libertysurf.fr