DE-9 is the correct designator for what is often mistakenly known as the DB-9 connector
The correct nomenclature for the D-shell 9-pin connector typically used with legacy serial ports is DE-9, not DB-9.
Questions tagged [de9]
6 questions
4
votes
1 answer
Why bridge the GND wire on a DE-9 connector?
Why would someone want to bridge the GND wire to the metal shield of a DE-9 connector? Take a look at the picture below.
A 10 position flat ribbon cable is soldered to a DE-9 connector (male). On position 5 (GND) a short piece of wire is soldered,…
Samir
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2 answers
When designing a product that uses a DE9 connector, is it normal to just classify it as an RS-232?
Question:
When designing a product that uses a DE9 connector, is it normal to just classify it as an RS-232?
Background:
I am seeing a lot of references to RS-232 while reading engineering documents in the avionics sector that really don't line up…
Samuel Barthelemy
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Can i replace a De-9 port with something else?
I was given an old piece of DJ equipment from the late 90s and unfortunately, the only way to connect it to a pc, which is what its meant for, is through a De-9 port/cable. And my pc doesn't support that. I could, in theory, buy an adapter but I'd…
scooter 505
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Is there a standard describing the UART data frame protocol?
The "U" in "UART" stands for "Universal", but I'm having trouble finding any standard that describes the framing protocol that's used in UART; e.g. the start bit, stop bit, parity options, and baud rates that you see in serial communication clients…
cdleary
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1
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DE-9 monitoring solutions?
My treadmill connects to its controls via a DE-9 port interface and I'd like to reverse engineer it so I can control and monitor it via my computer instead. I would hope it perhaps uses RS232, but given that the only hardware solutions I've found…
user1063042
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0
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1 answer
DE-9 female to usb male conversion of gamepad for PC
I have an old game console which had Mario and contra old games . It has two controllers,they have db 9 female at there end but i want it to run it in my PC via USB. I want to know how i can convert the DE-9 female to USB at home i also have Arduino…
RobinHoodRKA
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