Hi All of my FE Rb's have serial out of a 9 pin D connector. They bring power (+15 and +5) in on that connector, and put 1 pps and 10 MHz out on the same 9 pin D.
There are (apparently) dozens of variations of the FE 5680. There is no single standard for what is hooked up where. I'd be *very* careful about playing with wires I had not either traced out or had data from the seller on. It's *very* easy to blow one of these beasts up. On mine serial is normal RS-232 levels on pins 8(rx) and 9(tx). 15 V power is on pin 1, ground on pins 2 and 5, +5 power is on pin 4. Outputs are on 6 (pps), 7 (10 Mhz), 3 (lock). Again - I'd be *very* careful with information that may or may not apply to your specific Rb. Bob On Sep 20, 2013, at 5:25 PM, Bob Stewart <b...@evoria.net> wrote: > Bob, > > > Does your Rb send the serial out on the DB-9, or did you solder in a > connection? I'm looking at mine and it looks like pin 8 is connected to > something and pin 9 seems to come in to an empty SMT slot for a cap or > resistor. I was thinking of bringing a ribbon cable out between the covers > above the DB-9, but maybe I should just take over 2 pins on the DB-9? Any > ideas what the pins 8 and 9 would have been hooked up to if they don't go to > the serial input? > > > Bob > > > > >> ________________________________ >> From: Bob Camp <li...@rtty.us> >> To: Discussion of precise time and frequency measurement >> <time-nuts@febo.com> >> Sent: Wednesday, September 18, 2013 7:25 PM >> Subject: Re: [time-nuts] GPSDO vs Rb standard >> >> >> Hi >> >> When I want to tune an Rb, I just hook up to it with a terminal program and >> hack away at it. There's not a lot to the protocol. >> >> Bob >> >> > _______________________________________________ > 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.
