DEC CD-Rom Drive RRD40-DA Questions!! - test-drb@ccmp.vtda.org

30 Apr 2001

...
  I found this on Ebay.  Is this really SCSI?  I thought
it ran off of a
 special board made just fot it.... the M7552? 
...
  In fact is this one of the same drives that was given
away on the list? 
 I don't recall, who gave it away, but I recall him mentioning a cd being
 stuck in it, just like this one! 
...

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1233983573 
...
  I would buy it, but am unsure of exactly what it is.

...
  Chad Fernandez
 Michigan, USA 
This is an external DEC 1X CD-ROM drive, SCSI, 512 byte sectors. It uses
a really strange type of caddy that was probably never used anywhere
else.
It took me a little while to figure out how to load/unload these things
:)

It works nicely as a 512 byte sector CD-ROM for getting those older
workstations running, but it is EXTREMELY slow.

Technically, I think that inside this enclosure is an interface
converter
board that changes the proprietary CD-ROM interface to SCSI. Kind of
reminiscent of those external TK50 cubes for the uVAX 2000 that
contained
boards to convert the special TK50->TQK50 interface to SCSI.

--Sean Caron (root(a)diablonet.net) | http://www.diablonet.net