[time-nuts] Help with my FTS4050...

Tom Van Baak tvb at leapsecond.com
Sat Jan 8 15:23:21 EST 2005


For those of you playing with the FTS 1200 OCXO
inside the FTS 4050 the DB-9P pin-outs are:

    pin 1 - control voltage return
    pin 2 - control voltage
    pin 5 - supply return
    pin 6 - oven monitor
    pin 8 - +24 VDC supply (22 - 30 ok)

The EFC spec is 4e-7 for 0 to 10 VDC.

If you find an FTS OCXO with pin-outs other than
this or a different EFC voltage range please let me
know.

It's usually easy to trace the wires that go to the
DB9. Some FTS OCXO have separate oven and
oscillator power supplies (like the HP 10811) but
the 1200 takes just one supply.

/tvb






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