jweldon@sgi.com (Jack P. Weldon) (09/19/90)
In article <26428@boulder.Colorado.EDU> rainer@hibachi.colorado.edu (Rainer Malzbender) writes: > >Is the parallel port on a 4D/25 just like a PC parallel port ? If the >pinout is in the manuals, SGI did a good job of hiding it. I want to >hook up a Laserjet II to it. Thanks for any help. > My PI manual (Version 1.0) has an Appendix A that gives the specs of the cable required for the parallel port. It says: Centronics 25-line interface with full shield attached 360 to solid metal D-shell; IBM PC compatible. The 740-0 from Inmac is a good example -- it is an 8' Double-Shielded cable. An aside: don't forget that the IRIS 9-pin serial port is *NOT* a PC-AT 9-pin. The pinouts for the serial port are in the same appendix as well. Flame: We will never really know WHY IBM decided to put Signal Ground on Pin 5 (and other strange twists) when they designed their "non-rs232 standard nine-pin", now an unfortunate "industry standard". Now every PC clone maker must also use the same pinout...Standards are funny that way. -- Cheers, Jack P. Weldon (jweldon@csd.sgi.com)