[time-nuts] Fei FE-5680A RS-232 interface.

Tue Jul 25 20:30:13 UTC 2023

Dear all,

I bought myself a Fei FE-5680A with P/N 217400-30352-1, see the picture.
I found out that this is a 10MHz version, also has a 1PPS output, lock indicator and a RS-232 interface. My question is about that latter, is it a real RS-232 port, or do I need to add an external MAX232 or MAX3232 to get it going with the proper levels?
Could not find a clear answer on the wide web...

Best regards, Rob

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