Symmetrical connectors

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From: Michael G Schwern
Subject: Symmetrical connectors
Date: 00:35 on 24 Oct 2003
Its not software but damnit if I can never figure out which way my USB
cable is supposed to go in!  If you're going to design a connector that has
to go in a certain way, make sure its damn obvious which way it should go!
USB, Serial, ADB, IDE, most SCSI, polarized US power cords (thank god those
disappeared right quick) all require they go in a certain way yet they're 
symmetrical across one or more axis.  ADB was the worst offender being 
nearly round with nothing but a notch to orient on.  Many a time I played 
the little twisty game trying to get an ADB connector to slide into an 
unseen jack.

OTOH, firewire, phone and ethernet jacks, three prong US power and to a 
limited extent, VGA and mini-VGA seem to have gotten it right.


-- 
Michael G Schwern        schwern@xxxxx.xxx  http://www.pobox.com/~schwern/
...but pity stayed his hand.  "It's a pity I've run out of bullets", he 
thought.
        -- "Bored of the Rings"

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