At 8:31 PM -0400 10/24/2002, the pickle wrote: >At 19:25 -0500 on 24/10/02, Spiritus ex Machina wrote: > >>Some months ago (May or June, I think) we had a back-and-forth on one of >>the LEM lists about D-connector nomenclature. As I remember the course of > >Clark Martin.
That's me! > >>the discussion, someone pointed out that the Dx-nn nomenclature specifies >>the hardware characteristics. 'D' indicates the shell shape. The 'x' is an >>alpha character that specifies the width of the connector: 'DB' is the size >>we usually associate with 25 pins; 'DE' is the usual 9-pin size; I don't > >DA-25, DB019/15, DE-9. DA-15 DB-25 DC-34 DD-50 (triple row) DE-9 The 19 pin floppy port was something of an oddity and I've never seen the proper designation for that one. It may be exclusive to the Mac floppy drive. Apple has always been tight for space on the back panel (hence the DB-25 SCSI, MiniDIN8 serial, AAUI and stacked serial and audio connectors) so it wouldn't be surprising to find them creating a custom connector for the floppy drive. > >I don't think there's a DC or DD. > >>remember them all. The 'nn' is the pin count, not the size (there was some >>speculation about how to name a Sun video connector). Commonplace usage is > >13W3 is the usual convention, because there are three coax connectors that >aren't "normal" pins. I dunno if there's an "official" name or not but I've >never seen anything but 13W3 for that one. It would be a DB-16 basically. 16 pins, whether they are conventional single pins or coax pins. I have seen a few odd connectors, those using the standard shells with different pin combinations. The most common pins are the standard pins you usually see, coax and high current pins. I've seen coax in both the type used in the 13W3 and a slimmer type that is roughly the diameter of a standard pin. Dang and when I saw this thread I thought I'd be able to stay out of it. -- Clark Martin Redwood City, CA, USA Macintosh / Internet Consulting [EMAIL PROTECTED] "I'm a designated driver on the Information Super Highway" Go Giants! -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:quadlist@;mail.maclaunch.com> To unsubscribe, email: <mailto:quadlist-off@;mail.maclaunch.com> For digest mode, email: <mailto:quadlist-digest@;mail.maclaunch.com> Subscription questions: <mailto:listmom@;lowendmac.com> Archive: <http://www.mail-archive.com/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
