Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!ingr!b11!char
From: char@b11.ingr.com (Orrin Char)
Newsgroups: comp.periphs
Subject: future SCSI connectors
Keywords: SCSI-2, high-density, compatibility
Message-ID: <6357@b11.ingr.com>
Date: 27 Oct 89 22:49:41 GMT
Organization: Intergraph Corp. Huntsville, AL
Lines: 30

I need information pertaining to future industry standards for shielded
SCSI connectors. 

We, at Intergraph, currently support 2 different types of shielded SCSI
connector:
	a)  Centronics-style 50-contact (0.085 inch spacing)... preferred
	b)  AMP              50-pin     (0.100 inch spacing)

The proposed SCSI-2 specification lists 2 shielded connector options
for the A cable:
	a)  AMP              high-density 50-pin     (0.050 inch spacing)
	b)  Centronics-style low-density  50-contact (0.085 inch spacing) 

I believe that ANSI X3T9.2 (SCSI Committee) members were supporting a
move to high-density connectors to fit the smaller physical dimensions
of the next generation computer products (especially personal
computers). 

Are manufacturers of SCSI products really planning to change to the
high-density connectors in the near future? Or, are they planning to
stay with the low-density connectors to remain compatible with existing
products?

------------------------------------------------------------------------------
Orrin Char			Email   ...!uunet!ingr!b11!char
Senior System Engineer		        char@b11.INGR.COM
Intergraph Corporation		Phone:  (205)772-6127
Mail Stop CR1105
One Madison Industrial Park
Huntsville, Al.  35807