Mike, you are correct, duh! I meant to indicate this device: **broken link removed** which is a CMOS bilateral switch.
OK, the opto might work although I’m concerned about the width of my 1pps signal which is very short, would the LED light enough? Long enough?
The bilateral switch seems to be able to do what I need, however, what I need to know or have input on is how to interface the 1pps to the switch or the opto. The 1pps signal comes from a $40K test device from Agilent and I would hate to damage the sync output with my circuit. Is there anything I should look for or avoid?
By the way, thanks a lot for your attention and help on this.
Marcos (elalto)