David,
You may not be able to find a 2-slot or 3-slot PXI chassis on the market - I just spent five minutes on www.picmg.org myself and came up empty. But if you find one, I would be interested in knowing about it if you are willing to re-post that info.
What exactly is your application? I am guessing that it is an in-vehicle application, due to the size constraint that you mentioned. Have you considered FieldPoint? NI has FP-2000 and FP-2010 modules that run embedded LabVIEW RT code, much like the 8145RT controllers. With FieldPoint, you can then have IO modules connected to the network module (the 2000 and 2010) for your measurements. The FP-20xx controller would behave very similarly to your 8145RT. Plus, FieldPoint is typically smaller then PXI and req
uires less power. I included some good links on the FP-20xx series modules and FieldPoint below:
NI Online Catalog - FieldPoint : http://sine.ni.com/apps/we/nioc.vp?cid=1206〈=US
NI Online Presentation - Increase Your Productivity with the FieldPoint 2000 : http://zone.ni.com/devzone/learningcenter.nsf/webmain/E3C0DCDD32CDB41F86256ACA0075DAE5?opendocument&node=174409_US
Regards,
Greg Caesar
National Instruments,
Applications Engineer
