Re: [Soekris] net4801 + openbsd + serial device

2008-04-29 Thread Chris Cappuccio
While we're at it, there is no RJ-45.  It's RJ48.  RJ45 is 8 pin, 2 conductor.  
What everyone calls RJ45 should have been a variant of RJ48.

der Mouse [EMAIL PROTECTED] wrote:
  This converter uses an DB-9 based serial device,
 
 It's a trivial thing in one sense...but surely this should be DE-9.
 I've never seen a DB-9 and doubt they exist; what's commonly miscalled
 a DB-9 is actually a DE-9.  The letter after the D indicates the shell
 size, and the DB shell is the 25-pin size.  (The other sizes: DA is the
 15-pin size used for peecee game ports and AUI Ethernet; DC is a 37-pin
 size that isn't used for much in my experience; DD is the three-row
 50-pin size used for SCSI by the Sun-3s.  I'm sure each has plenty of
 other uses, too.  I don't know why the letters aren't in order; I
 speculate the DE size was an afterthought.)
 
 Not that this is a reflection on you; it's a very common mistake - even
 many vendors of D-shell hardware make it, and I used to make it myself
 until I got the terminology straight in my head.
 
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Re: [Soekris] net4801 + openbsd + serial device

2008-04-29 Thread Chris Cappuccio
http://en.wikipedia.org/wiki/Registered_jack

der Mouse [EMAIL PROTECTED] wrote:
  While we're at it, there is no RJ-45.  It's RJ48.  RJ45 is 8 pin, 2
  conductor.  What everyone calls RJ45 should have been a variant of
  RJ48.
 
 I thought what's usually called RJ45 isn't RJ-anything because the RJ
 stuff is for particular ways of putting POTS pairs on those connectors,
 and thus if you're not doing POTS over the lines it's not RJxx.  (Well,
 it might be fair to speak of RJ45 - or RJ48 - _connectors_, as in, the
 connectors appropriate for RJwhatever, ut then put them to another use,
 much as one could speak of a DB25 as being an RS232 connector even if
 one then uses it for a parallel port or something.)
 
 Is my impression of RJ wrong?
 
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