[time-nuts] Re: HP Z3801A project update

[Lux, Jim]

On 2/24/22 7:25 PM, ed breya wrote:
> Paul and Hal, I think there may be some confusion here. I modified the 
> Z3801A to RS-232 way back when I first got it. My recent post was just 
> discussing some of what's in this demo/testing unit thing. It's just a 
> translator for TTL/RS-232 for when the GPS RX board (TTL serial) is 
> used by itself, hooked to a PC (RS-232), so the WinOncore SW can talk 
> to it. When the RX board is inside the Z3801A, it's controlled in that 
> environment.

These days, since PCs don't have serial ports, you can buy a RS422 USB 
adapter for $5.  If I were doing it now, I wouldn't bother reconfiguring.