[comp.periphs] future SCSI connectors

char@b11.ingr.com (Orrin Char) (10/28/89)

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

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

NCR is using the high density 50 pin one on the host adaptor for
their new Microchannel machines.

I haven't seen anyone else use them yet.  All the drives I've hooked
to my NCR Microchannel machine have been via the regular AMP connector
that is also on the card.

						Tim Smith