On Jun 5, 12:47*pm, Tim Watts wrote:eth

Another solution is to shove fibre down there with a couple of cheap end
transponders on each end.
--

You could do the whole job with fibre for around £50 sourcing
everything from eBay.

30m long multimode patch cables (OM1 65um, OM2 or OM3 50um) with
duplex LC connectors at each end can be obtained for a few pounds each
if you wait for a week or two. OM3 is better than OM2 which is better
than OM1, but for such short lengths it will make no difference at all
which you use. Avoid single mode because the transceivers usually
cost more and you don't need to send the data many kilometres anyway.

850nm SFP multi-mode transceivers are often available for £0.99 +
postage in speed ratings of 1, 2 or 4 Gbit/s. It doesn't matter
whether they are specified for gigabit ethernet or fibre channel -
either will work fine for gigabit ethernet. It doesn't matter what
make they are either.

Gigabit media converters such as TP-Link MC220L are just under £20
each. Note that these ONLY work at Gbit speed, not 10/100Mbit/s.
Alternatively, some low-cost network switches which work at
10/100/1000 take SFP optical transceivers. The cheap ones don't care
what make of SFP treansceivers you use. GS110TP is an example of a
nice switch which works with any make of SFP, but there are cheaper
ones around too.

John