On Tue, 2007-08-14 at 20:45 -0500, Javid Butler wrote: > > I have been meaning to ask you about who fabricates your pcb's. I need > > to have a few RS-422 transmitter and receiver boards made. > > Kirk- > > Can you elaborate on what you need? ...snip > Anyway, please tell us more about what you need and I'll see if there's > anything that fits. > > Thanks, > Javid
Thank you for the offer. I want to use RS-422 between my encoders and controller encoder inputs. A rough description of the receiver board is: ~2 inch square with mounting holes on each corner. Opposite edges would have .2 inch screw binding terminals with one side having +12 V, Gnd, A out, B out, I out. The other having 12 V out, Gnd, A+ in, A- in, B+ in, B- in, I+ in, I - in. Centrally mounted would be a DS26C32, TO-92 5 V regulator and capacitor(s). That's it. I would like to make them as generic as possible so that I could trow them in where needed. A major concern is that the board mounting and wire connections be rugged. The transmitter boards would be the same except using a DS26C31 and .1 inch connectors. The board could be single sided with surface mounted components. You can see a first pass of this board here in the fourth picture down: http://www.wallacecompany.com/cnc_lathe/HNC/ I don't have a CNC mill yet, so I can't mechanically etch the boards I need. Making a batch of these boards might be a good project to see how pooling resources works. Kirk Wallace ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
