-------------- Original message ----------------------
From: "Timothy Miller" <[EMAIL PROTECTED]>
> On 6/20/06, Jack Carroll <[EMAIL PROTECTED]> wrote:
> > JB, let's see if we can deal with this early next week, after I get
> > back from a business trip I just heard about. I'll need a little newbie
> > handholding to get onto the wiki. Tim has approved the numbering system
> > standard, so we're cleared to proceed.
>
> To be more precise, I looked at it, didn't understand exactly what the
> numbers meant, figured that you probably know what you're talking
> about more than I do, figured that a system Jack Carroll designs is
> going to work, and said to go ahead. :)
Clarification understood. OK, I'll release the standards package at Rev A
under my own name, and not blame it on you. JB can show me how to post the
PDFs on the web site.
>
> > Remind me what drawing size the PCB schematic is, and I'll construct
> > a drawing number for it so you can fill in the title block. The schematic
> > is for the PCB and not a higher-level assembly, right?
>
> Are you talking about physical dimensions?
The physical dimensions of the _drawing sheet_ when printed out at its
intended size. An 8 1/2 x 11 piece of paper is A-size, an 11 x 17 is B-size,
17 x 22 is C-size, and so on.
>
> And I'm not sure how to answer your question on the schematic. It
> refers to specific parts that are being populated and explains how
> they connect, but it is a specification of the logical connections
> between solder pads on the PCB. So I don't know how to say whether it
> specifies higher-level assembly.
If the schematic shows only the parts mounted on the board, it's a board
schematic. Most PCB design flows require a schematic that's specific to the
board. If the final assembly requires electrical parts that aren't laid out on
the board artwork, the board would normally be a subassembly, and the board
assembly would be listed as a part on the final assembly parts list. (We can
talk about assembly trees and other drafting terminology later; I know you're
busy.) Is the OGD1 a single-level assembly, with no subassemblies?
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