Are there any disadvantages to using Mesa ethernet boards over using a PCI board?

**Voicecoil** · 21-01-2020

Originally Posted by Clive S

When I refired to the 36V I was thinking using a DC -DC buck converter. Yes 36V is too high I would not go above 24V.

2A is nicer.

https://www.ebay.co.uk/itm/MDR-60-24.../283552504762?

or
https://www.ebay.co.uk/itm/Din-rail-...cAAOSwxlxd3f2c

I used one of the 2A units on mine, works great and for £12 you can't argue!

**Agathon** · 21-01-2020

Rummaging through my extensive collection of junk I found this. 18v 2.3A rather than 24v - any good?

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**Doddy** · 21-01-2020

Originally Posted by Agathon

Rummaging through my extensive collection of junk I found this. 18v 2.3A rather than 24v - any good?

18V can be a bit unusual to interface to - if you're using the discrete outputs. If you're happy that it's not a problem then fine; I've used 12V - works for my illuminated buttons, most people will default to 24V.

**Voicecoil** · 21-01-2020

Originally Posted by Agathon

Rummaging through my extensive collection of junk I found this. 18v 2.3A rather than 24v - any good?

I guess it should work - the Mesa manual says it will sense 5-32V on inputs and switch 5 through 28V on outputs. You'll lose a bit of noise immunity as you're only running at 75% of 24V, but with screened cables & good wiring I guess you'll probably be OK.