Jason, Of the timecode formats specified in the 9037 support document, only the Spectracom format is available in products currently manufactured. See http://www.eecis.udel.edu/~mills/database/brief/bof/ibm.pdf. One of my consulting clients is searching for a way to synchronize a 9037 to an NTP server, so I proposed using an NTP device driver that would emulate a Spectracom clock. It would be easy to do.
I have similar experience as you with PPS; we get 0-2 us. However, experience with a secondary server synchronized to a PPS primar server varies a lot, depending on the NIC and system. Nominal 30 us jitter, but systematic offsets up to 1.8 ms (on Sunses). Dave Jason Rabel wrote: >>Strange. I have an EndRun Cntp, bu it has an Ethernet interface. If 4 >>works for you use it. That's a pretty grotty driver with all kinds of >>bandaids to deal with long forgotten radios; I wonder why EndRun chose >>that driver... >> >>Dave > > > Yeah the code for the TrueTime devices is pretty hacked together last time I > looked at it. But if it ain't broke... > > They probably chose that driver because it supports the generic Sysplex time > format (which is what I think the EndRun outputs), a lot of mainframes and > such still use that format. _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
