Re: [CAD_CAM_EDM_DRO] TTL questions

----- Original Message -----
From: Jon Elson <jmelson@...>

> > Second question. Assuming I need pull-ups, the whole thing would go
together real nice if I could find resistor networks with .200 pin spacing.
Can't find them. Is it considered bad PCB etiquette to clip alternate pins
of a 10 pin bussed network? This would sure make it easier to get from the
tranceivers to the resistors to the screw terminals.
>
> Why don't you use SIPs with the isolated resistors? There will be an
'input' every .2", and
> an 'output' every .2".

I put the optocouplers along side the tranceiver. I can connect every other
tranceiver output to a pin 2 of an opto with a straight line. But if I put
the SIP between them to tie with pin 1 of each opto, it will require me to
re-route the lines to each pin 2. It is a minor issue but straight lines
make it easier to do hand layout.

Doug