The two units go in (what was told to me) an open frame chassis, it has SMA and I believe DB-15 connections along the top. The connections on the chassis split the signals even more, presumably for routing to the rest of the cell.
http://campus.pari.edu/k4cso/gps/Lucent/ I was able to contact the guy that owns that unit, but his XO was hit by lighting a while back and it's currently out of action, so he wasn't able to give me info on any signaling, just the cable pinouts. I would assume you could use the XO by itself, since it has the GPS. Then optionally connect the Rb for longer holdover. From what I was told, on initial power up the XO is the primary until the Rb warms up, then it switches to the primary and the XO LED changes to standby. Jason P.S. Happy New Year Everyone! > So, if we have two sources of 15 MHz in a CDMA minicell, each with > its own SMA connector, what module receives those two sources and > decides which one to use? > > Why use XO and Rb when either could be made redundant for extended > reliability? (not the British sense of "made redundant") > > Bill Hawkins _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts