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Is the chassis of the DB9 plug connected to ground ?

chassis connected DB9 ground PLUG
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Is the chassis of the DB9 plug connected to ground ?

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No. I spent a lot of time thinking about whether to ground it but I decided not to because it might cause ground loops in your equipment. If you would really like it grounded, it is easy enough to do it yourself by opening it up and soldering a wire from the power jack ground to each DB9 chassis ground.

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