[time-nuts] Help identifying a SA.22c interface board

Paul Moore paul at paul-moore.com
Fri Jan 18 15:26:11 UTC 2019


Hello all,

I recently picked up a SA.22c for use in a project and it came with an
interface board that I can't seem to identify; I was hoping you nice
folks might be able to help.

The SA.22c is part of an assembly with the interface board and a metal
plate/heatsink.  There is a small cable (approximately 6 inches)
attached to a 10 pin connector on the board.  The interface board,
based on the drawings and connector descriptions, does not appear to
be the SA.22c developers board.  If I had to guess, this was likely
taken from some other device and wasn't used as a standalone
reference.  Ideally I'd lack to track down the specs and connector
pinouts for this board in hopes that I could reuse it and not have to
make a new interface/harness for the SA.22c.

Any help or information you can provide would be greatly appreciated.
More information (part numbers, etc.) below:

The SA.22c itself is labeled with a Symmetricom part number,
SA22C-0029F02E0003, and there is an additional label marked with
"15961-501 REV. E" but this label doesn't carry any manufacturer (I
don't believe it to be a Symmetricom P/N but I could be wrong).  The
board is marked with a printed part number of "?6219-15892-001 REV D"
(I can't make out the first digit, maybe a "6"?) and has a sticker
with "15893-501 REV D1".  The board has what appears to be a single
SMB connector (J3), a 10 pin connector (J1) (the attached cable uses
six of those pins), a 4 pin connector (J2), and what appear to be a
couple of voltage regulators (U6 and U1) (my guess is so it could use
a single power supply).  The 10 pin connector on the board is arranged
in two rows of five, the attached cable terminates with a single row
eight pin connector, six of those pins are connected.

-- 
paul moore
www.paul-moore.com




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