Here are the pinouts of the FTS 2000A OCXO jumper board in my 4060M/S24 cesium
beam unit.
This board makes the 2000A look like a Datum 1000 OCXO.
Datum 1000 pinouts and definitions are from Brooke Clark's PRC68.COM web site.
The FTS-2000A coax connects to an SMB connector.
FTS 2000A Datum
10pin+coax DB9 Function
------------ --------- ----------------
1,2 8 +26V power
3 2 EFC
4 1 Electronics GND
5 N/C
6 N/C
7 5 Oven GND
8 1 Electronics GND
9 6 Oven monitor
10 3 Coarse tune in (+15V pwr)
4=N/C +12V ref (coarse tune hot)
7=N/C +24V oven power
----------------------------------------
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