I concur with left to right and top to bottom on the board.  Also the
comments about patterns and groups, be logical.  On the subject of left to
right and top to bottom you need to think about the way the board is
oriented in its final resting place and make sure you draw the outline in
that orientation, or turn the refdes to that orientation.  Otherwise the
end user may have to be an acrobat to read the ref des text.   If you don't
think they will notice your wrong - I have had many seasoned engineers and
techs voice their appreciation for being able to look at system of cards
and not have to crane their neck every which direction.

Dee Stover  [log in to unmask]
National Optical Astronomy Observatories


At 09:09 AM 10/20/1999 -0700, you wrote:
>Is there a 'standard' on how to number components?
>
>I'm referring to the way reference designators for components are placed.
>If people (engineer, designer, assembler, technician) want to see a Right,
>Down method, would that apply to the schematic or the board?  If there is
>no stanrdard, I'm sure it all boils down to whatever the people involved
>agree upon.
>
>I was wondering what the popular concensus is...anyone?
>
>