Hello Martin, Yes, you can just install the GPSDO in and have the full functionality. The switch is used to tell the onboard software which reference source is *preferred*. Switching to internal when there is no internal source will fail (there is active detection of the reference signal) and the octoclock will default back to external. Once you have a GPSDO plugged into the internal socket you will be able to switch to internal.
Regards, Derek On Tue, Apr 17, 2018 at 9:39 AM, Martin via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi, > > How can I upgrade a standard Octoclock CDA-2990 to a Octoclock-G CDA-2990? > Can I just put in the GPSDO. Or do I need to do more? > > I already have a Board Mounted 783173-01 GPSDO (OCXO) (LC_XO with OCXO) > > The documentation says: > > http://files.ettus.com/manual/page_octoclock.html > >> Both OctoClock models can input a 10 MHz reference and a 1 PPS signal via >> the SMA connectors EXT 10 MHZ INPUT and EXT PPS INPUT, respectively, >> located on the front of the device. Additionally, the OctoClock-G contains >> an internal GPSDO which provides its own internal references to the device. >> >> There is a switch on the front panel of the device with two positions >> INTERNAL and EXTERNAL that specifies which reference will be used, when >> applicable. For the OctoClock, there is no internal timing or clocking >> source, so the OctoClock will always use external 10 MHz and 1 PPS sources, >> > > Is the switch not connected on the Octoclock? > Or is it a software/firmware/EEPROM setting? > > > Thanks in advance? > > Martin > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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