VOGONS


First post, by bergqvistjl

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In a lot of older cases, I see a few serial/parallel port outlines, covered up with usually the same material for the case, usually above the backplate itself. What were normally go in those ports or what form factor were they for? It tends to vary on the case.

You can see them in this pic here:
case-back.jpg

Reply 1 of 12, by brostenen

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You mean to the side of the I/O shield? Stick a flathead screwdriver into the "crack" and pry the metal away, then you can mount what you said. A serial or a parallel connector.

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Reply 2 of 12, by appiah4

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You can mount AT motherboards in such cases; in these cases the breakout connectors for Serial and Parallel ports are mounted at these locations after removing the covers.

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Reply 3 of 12, by brostenen

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You can see how they were usually used, back in the days, in the following blog post I found.
I think the author of this blog, is a Vogon member....

https://ancientelectronics.wordpress.com/2014 … f-a-386-dos-pc/

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Those cakes make you sick....

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Reply 5 of 12, by brostenen

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bergqvistjl wrote:

How do you fix them there though, if there's no backplate or mounting holes to have them stay in place?

Can you be a bit more specific?

Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....

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Reply 6 of 12, by bergqvistjl

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brostenen wrote:
bergqvistjl wrote:

How do you fix them there though, if there's no backplate or mounting holes to have them stay in place?

Can you be a bit more specific?

How do these stay attached to the casing?
dell-pci-serial-port-3.1-800x800.jpg
s-l300.jpg

Otherwise surely you could just push them back out of the hole?
386alt2.jpg
Are you just meant to screw them the other way over the screw connectors? But then the connector wouldn't be as tight then...

Reply 7 of 12, by dionb

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Look at the sides of the holes - they are wide enough to fit the screw thread of a DE9 or DB25 connector, but not the hexagonal head. So remove the hexagonal screws, put the connector in place and screw in the screws securely. It will stay in place.

Reply 8 of 12, by GigAHerZ

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All my cases have had smaller "ears" so that those screws of the port itself keeps it attached to the case...

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Reply 9 of 12, by Scali

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Many multi-IO cards use the same approach with their brackets:
They generally have one COM and one other port (usually joystick) on the ISA card itself, and then a bracket for a second COM and LPT, with ribbon cable.
Later multi-IO cards are even low-profile, so only one port is actually on the PCB, the second one is also done with ribbon cable to the bracket.

http://scalibq.wordpress.com/just-keeping-it- … ro-programming/

Reply 10 of 12, by brostenen

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bergqvistjl wrote:
How do these stay attached to the casing? https://img-aws.ehowcdn.com/640x395/s3.amazonaws.com/cme_public_images/www_ehow_com/i. […]
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brostenen wrote:
bergqvistjl wrote:

How do you fix them there though, if there's no backplate or mounting holes to have them stay in place?

Can you be a bit more specific?

How do these stay attached to the casing?
dell-pci-serial-port-3.1-800x800.jpg
s-l300.jpg

Otherwise surely you could just push them back out of the hole?
386alt2.jpg
Are you just meant to screw them the other way over the screw connectors? But then the connector wouldn't be as tight then...

No need to worry.... The place in the case, are cut, so when you srew the hex-screw tight. Then it will hold the port header in place. Just like it has been mentioned. No need to worry. just check dimentions of the hole in the case or just screw a header in. 😀

If you look more close to the one you have pictured, in were the hex are not touching the case, then the hole in the case are a bit different than the one on the 386 machine in the blog I linked to.

Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....

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Reply 12 of 12, by Big Pink

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Those cut-outs are still around today, just maybe not on desktops. I bought an HTPC case that has one for the VGA connector from a low profile card. It means you don't lose a PCI slot.

https://www.pbtech.co.nz/fileslib/_2016011913 … B_Descr_009.jpg

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