Hello: I'm not sure if this is the right place; I've been having trouble finding "current" info / discussions on NTP on linux.
I have a SEL 2407 clock (http://www.selinc.com/sel-2407/) that I was trying to make more useful by providing NTP service to the university (and others). This clock has IRIG (modulated and "unmodulated") outputs, as well as PPS and 10kPPS. I know there is a linux PPS driver, but it is unclear to me whether it works without an accompanying NEMA feed, and this GPS does not do NEMA out. I also haven't made the custom DB9 cable to feed the PPS into the linux box yet. However, I had the right adapters and cables to feed the IRIG into the sound card, so I thought I'd try that. After playing with levels and such for a while, I got it to give me a timecode = "00 ", but no other numbers after that, and it appears its not sync'ing to it. If I turn up the audio at all, I start getting errors indicating overdriven IRIG, and if I unplug it, I get other errros reported, so its clearly seeing "something" there. However, it never locks and shows something other than "00 " for timecode. I had to guess on a lot of how to make it work, including cabling and termination and the like, as it seems to be a big deficit in documentation at a level below "extremely knowledgeable / technical" level. Is this the right place to ask? If so, anyone have any pointers? If not, can someone direct me to a more appropriate place? Thanks! --Jim _______________________________________________ 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.