IFD Main Discrete I/O Page

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Email *

Your name (As you'd like it to appear on your certificate of completion). *

The discrete I/O config page can be used to test ______ *

34 points

External annunciators connected to the IFD

RS232 Outputs from the IFD

ARINC429 Inputs to the IFD

The name of the avionics shop, or Avidyne dealer you work for. *

You are performing a 91.411/413 check on an aircraft with an IFD and AXP322 remote transponder (where the IFD is feeding altitude to the transponder). You are unsure if it is using an RS232 blind encoder, or a Gray Code encoder. How can you tell? *

33 points

The IFD Discrete I/O Config Page will show you if a Gray Code Encoder is connected

Even if a Gray Code encoder is connected to the IFD, the IFD may be prioritizing ARINC429 or RS232 altitude data over Gray Code

It would still be necessary to determine what other altitude sources may be connected to the IFD, and understand the IFD altitude priority scheme

All of these answers apply

On the Main Discrete I/O Config Page, you can find which of the following? *

33 points

Line by line read out of Gray Code Encoder Inputs

State of any connected external switches

A means to toggle any connected discrete outputs from the IFD between active and inactive

All of the above

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