You've got USB to db9 serial, to db25 female, back down to db9 serial. At this point, since the chain started life as a USB to serial adapter, this should be a functional serial port.
But then, it gets converted to PS/2 mouse. Then to AT keyboard, then back to PS/2 mouse, before becoming a USB port again.
That's not how it works.
You see, he should have just plugged the dongle directly into the usb port on the laptop.
Do any of these adapters actually do any signal processing / transformation? I always assumed they were simply wiring crossovers. But I guess when the number of pins change there has to be an IC in there somewhere?
Yeah so now I’m wondering if jumpers stand a better chance of making this work, accidentally. If I had more time I’d look up all the specs and see where the wire maze lands!
28 Comments
itisileclerk@lemmy.world · 29 pts · 190d
USB -> Serial -> Parallel -> Serial -> Serial (25 pin -> 9 pin) -> PS2 -> Serial (??? not sure) -> USB
Or in short USPSSPSSU adapter. Nice.
thatKamGuy@sh.itjust.works · 20 pts · 190d
Not sure if you’re naming an adapter, or badly trying to coerce a cat to come closer.
Viking_Hippie@lemmy.dbzer0.com · 6 pts · 190d
Por que no los dos? 🤷
Verat@sh.itjust.works · 1 pts · 189d
PS2 -> serial seems correct, iirc their were serial mice.
db2@lemmy.world · 27 pts · 190d
What's the transfer rate on that monstrosity?
capuccino@lemmy.world · 44 pts · 190d
0 since it's connected to a PS/2.
thisbenzingring@lemmy.today · 11 pts · 190d
that green part is a ps2 to usb keyboard adapter that Microsoft provided with their keyboards at the time
edit: dang, replied to the wrong comment. meant for it to be the @db2@lemmy.world
db2@lemmy.world · 4 pts · 190d
I still have 2 of those 🤣 it was a joke
Edit: 2 adapters, 1 PS/2 (Model 80 tower), 0 Toughbooks
db2@lemmy.world · -1 pts · 190d
That's not a PS/2, those didn't come in laptop form. Maybe a Toughbook.
AngryCommieKender@lemmy.world · 4 pts · 190d
PS/2 refers to both a type of IBM PC, and a type of port.
db2@lemmy.world · 1 pts · 190d
Did they make a PS/2 without that port?
AngryCommieKender@lemmy.world · 1 pts · 190d
I dunno about that, but the port was popular in all types of machines in the late '90s and early '00s
village604@adultswim.fan · 2 pts · 189d
And it's still superior to USB for keyboards.
new_guy@lemmy.world · 22 pts · 190d
Probably 0.
Viking_Hippie@lemmy.dbzer0.com · 11 pts · 190d
At most.
JasonDJ@lemmy.zip · 18 pts · 190d
It wouldn't work, at all.
You've got USB to db9 serial, to db25 female, back down to db9 serial. At this point, since the chain started life as a USB to serial adapter, this should be a functional serial port.
But then, it gets converted to PS/2 mouse. Then to AT keyboard, then back to PS/2 mouse, before becoming a USB port again.
That's not how it works.
You see, he should have just plugged the dongle directly into the usb port on the laptop.
db2@lemmy.world · 7 pts · 190d
So you're saying it's now gigabit Ethernet.
wabasso@lemmy.ca · 5 pts · 190d
Do any of these adapters actually do any signal processing / transformation? I always assumed they were simply wiring crossovers. But I guess when the number of pins change there has to be an IC in there somewhere?
db2@lemmy.world · 5 pts · 190d
That first USB to db9 cable does something, the rest are glorified jumpers.
wabasso@lemmy.ca · 2 pts · 190d
Yeah so now I’m wondering if jumpers stand a better chance of making this work, accidentally. If I had more time I’d look up all the specs and see where the wire maze lands!
Davel23@fedia.io · 3 pts · 190d
It's DE9, just because my mind won't let it go.
funkajunk@lemmy.world · 2 pts · 190d
Elite ball knowledge.
b_tr3e@feddit.org · 1 pts · 190d
Don't be rude. He just forgot the USB serial interface.
ranzispa@mander.xyz · 12 pts · 190d
Is that a USB to USB adapter?
Viking_Hippie@lemmy.dbzer0.com · 6 pts · 190d
Fedizen@lemmy.world · 5 pts · 190d
0% chance this works at all.
JelleWho@lemmy.world · 5 pts · 190d
This should maybe have been listed on https://moeilijklastig.nl/verloopjes/
666dollarfootlong@lemmy.world · 3 pts · 189d
Would anything work, even a keyboard or a mouse?