building an RS-485<->RS422 converter

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Wed May 26 18:27:57 2004

>
>
> I have a need to build a serial converter down here. ISTR RS-422 drivers
> are something like 26L32s, which we have. What I'm not sure of is what

26LS31 drivers, 26LS32 receivers IIRC.

> to use for the RS485 end. Any suggestions? Obviously, I'll have to use

I seem, to rememebr using the TI SN75176 chip for this. I assume you're
using multiple drivers on the RS485 bus, so you'll need to find some way
of controlling the enable pins of the 75176.


> what's here since we won't see any planes for five more months.

Well, if I knew what you had...

-tony
Received on Wed May 26 2004 - 18:27:57 BST