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Thread: EFIS Expansion Connector

  1. #1

    EFIS Expansion Connector

    I must be missing something since everyone else can figure out how to connect the ARINC 429 module to the EFIS Expansion Connector, but I am struggling.

    The manual says the pin arrangement for the EFIS Expansion Connector is (pg 88):
    1 SERIAL #4 - TX
    2 SERIAL #4 - GROUND
    5 GROUND
    6 SERIAL #4 - RX
    9 +5V DC (350mA max)

    The ARINC 429 Main Cable schematic diagram (pg 111) shows the EFIS Expansion Connector as:
    1 SERIAL #4 - TX
    2
    5 SERIAL #4 - GROUND
    6 SERIAL #4 - RX
    9

    I confused as to which is the Serial Ground. Please clarify the connections to the EFIS Expansion Connector.

    Thanks...

  2. #2
    Pin 2 and Pin 5 are connected to the same place in the screen, they both are ground.
    Rob Hickman
    Advanced Flight Systems Inc.

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