HELP with LaserWriter

[Roy Zartarian <royzartarian@delphi.com>]

This is a request for help re the Apple LaserWriter, model M6000,
manufactured in the mid 1980's, and recently received as a
donation, without the manual, by a non profit organization with
which I am involved.
 
Does this device work with the IBM-PC AT? I note that the printer
has a 25 pin RS232 female port in addition to two DIN Apple ports.
Is this an interface for the PC AT? If so, is it serial or
parallel? What should the pinning connections be?
 
Any help would be greatly apprciated.
thanks
 
Roy Zartarian