I like: PCB100xxxRev0 (xxx in sequence from 001) for bare PCB including Gerber filename prefixes AS100xxxRev0 (matching the PCB xxx) for stuffed PCB Assys. (Usually mark the PCB "AS/PCB100xxxRev0") TP100xxxRev0 (matching the PCB xxx) for Test Processes for the specific PCB Assy. Note that the 100xxx are just assigned in sequence and are not meaningful except as they relate between the PCB, AS & TP prefixes. These numbers are generally document numbers (AS100xxxRev0 is Assy and Assy Drawing AS100xxxRev0) as well as, in AS & PCB cases, hardware numbers. Keep the Revs Sync'd!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Just gotta come up with a surefire way to know what firmware is planted where without having to use a computer to read a chip. Philip Pemberton wrote: > In message <5.1.1.5.2.20060510151229.03778ea0@mail.interlog.com> > Spehro Pefhany wrote: > > >> But what I'm talking about is no part number *for* the PCB. Eg. when >> you go to re-order blank PCBs, you have no way of reliably referring to >> the part you want! How difficult is it to come up with a system (or just >> use a random sequence of letters and numbers) and put a line of text on >> the board? >> > > I'd just use numbers. Cuts out most of the mess of people mishearing part > numbers - "Was that 98923-KDA or 98923-ADJ, Sir?" > > I'd probably use something along the lines of: > YYYYMM-SSSS-RR > > YYYY: Year of design > MM: Month of design > SSSS: Design serial number > RR: Design revision number > > -- *Carey Fisher, Chief Technical Officer New Communications Solutions, LLC *careyfisher@ncsradio.com Toll Free Phone:888-883-5788 Local Phone:770-814-0683 FAX: 888-883-5788 www.ncsradio.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist