[comp.periphs] SCSI connectors

shepperd@dms.UUCP (Dave Shepperd) (10/26/89)

Someone here was wondering what might be the most common type of
shielded SCSI connector found on the back of a computer or "shoebox".

There are apparently two types (other than the ones found on Macintosh).
One is a double row of 25 pins/sockets spaced 0.1" apart ala 3M ribbon
cable connector. The other is a double row of 25 pins/sockets spaced
0.85" apart in a D-subminature profile housing such as might be found
on the end of a 25 pair telephone cable.

Any information in this area would be greatly appreciated. E-mail
any replies and I'll summarize.
-- 
Dave Shepperd.	    shepperd@dms.UUCP or motcsd!dms!shepperd
Atari Games Corporation, 675 Sycamore Drive, Milpitas CA 95035.
When it comes time to collect the wages of sin, some of ue will
get time and a half. -- Flip Wilson

ts@cup.portal.com (Tim W Smith) (10/30/89)

I've seen a total of four kinds of connectors:

	1. 50 pin like that kind that goes on the end of a ribbon
	cable.

	2. 50 pin Centronics ( sp? )

	3. DB-25 ( Used by Apple )

	4. Very small 50 pin D shaped ( about 34mm in the longest
	dimension, according to my Swiss army knife ).

#1 and #2 are in the SCSI standard.  #3 is because there is not room
for #1 or #2 on the back of a Mac plus.  #4, I believe, is in the
SCSI-2 standard.

						Tim Smith