OT question and On-T info for the SGI crowd

I think all the pertinent hardware is really a couple of years too young, but hey. First the on-topic. Re: the recent thread about the ultra-weird PI SIMMs, I did find some 2M modules, and a shop here will do the chip conversion to 8M. With the caveat that he has no way to test the finished product, and offers no guarantee at all. He has worked on RAM for me in the past with very satisfactory results. It's M.C. Howard, here in Austin, they have a toll-free number listed on their website - http://www.mchoward.com - and the solder-wizard's name is Mel. They've been around for a very long time. Now the off-topic. I'm going to be doing some testing of a Challenge S, and will need to do it from a serial console, as it has no graphics option. The serial port's an RS422 just like a Mac, right? So a Mac printer cable from the Challenge to the Indigo2 serial port should work? I suppose I could figure out which one of my DE9-RS422 adapters isn't a null, chain that to a DE9-MMJ and just use the VT420, but that sounds sort of screwy, and not nearly as fun. Doc