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Dec 18

Getting to Know the Sismo IRS Display Unit (ISDU)

Here’s what you need to know about the Sismo IRS Display Unit (ISDU) if you decide to buy it as a stand-alone component for your Boeing 737 AFT Overhead. The Sismo ISDU consists of three separate modules:  Keypad module, Rotary Encoder module, and 7 Segment Display module.  It’s pretty easy to see the different modules …

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