If you use a good design on the receivers, AGC output is virtually free. It doesn't take much more to run that signal to a go/no go comparator.
-John ============ > > j...@quikus.com said: >> It was happenstance that the OPERA connector was mated enough to work, >> but >> not enough to work properly. > > A while ago, I was thinking that half the problem was a design error. But > then I couldn't figure out how to do it right. Maybe monitoring the pulse > height would have caught this error. Maybe a different encoding scheme > would > be easier to monitor. > > I've worked with fibers for communications, but that was many years ago. > The > receivers have AGCs. If you monitor the AGC control voltage you should be > able to catch things like loose connections. I don't think we ever did > that. > We did monitor the error rate. It was always 0. > > But that adds another level of complexity. Checking/monitoring is good. > Complexity is evil. How do you decide? > > > -- > These are my opinions, not necessarily my employer's. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.