[time-nuts] 10 MHz over optical fiber?
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Nov 24 15:56:15 UTC 2008
In message <20081124152247.DCDB0E91529 at mail.ebirds.it>, Marco IK1ODO -2 writes:
>Hi all,
>
>I have to carry a 10 MHz standard frequency signal inside an EMC
>screened room via fiber optic cable.
>
>Not willing to re-invent the wheel, do something like an optical
>standard frequency link exist on the market?
>I think it is possible to use standard 100MB LAN transceivers, and
>POF. Phase noise requirements
>are not very stringent, and the distance is in the order of some tens
>of meters.
HP used to have kits consisting of transmitter + receiver + plastic
fiber in various lengths.
HParchive.org has a service note that explains how to use that for
reference frequency distribution.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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