Ok Bruce....thanks.

It's working fine with a direct connection using T1200 on both.

I HAVE to get this solved in hardware though because I have some product out there and the pics are N1200.

Dagnabit...I tried a 4011, a 4093 and even a transistor and couldn't get it to work. I used pullups....tried it all.

Certainly a 4011 can handle the 1200 baud? I'd appreciate any ideas but I must get this thing to work with some external hardware.

I'm using a 4mhz osc but that's not an issue....I just need to pass the 1200 baud right?

I'll always use non-inverted from now on!