[time-nuts] Help getting 53131A to talk over RS232

[cdelect at juno.com]

I have done this before (years ago) but now I can't seem to get a count
out over the RS232 port.

I scoped pin 2 (pin  ground) and can't see any data no matter what I try.

I seem to remember a "secret" trick from back then but can't recall it.

I'm counting time difference between two 1PPS signals.

Please Help!!!

Cheers,

Corby