Passive POE switch.

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Spofi
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Passive POE switch.

Sun Dec 20, 2015 6:08 pm

I would love to see something like the WS mini or the WS 12-250-dc but in a passive POE with support down to 10V

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lligetfa
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Re: Passive POE switch.

Sun Dec 20, 2015 6:14 pm

The WS-12-250-DC can run all the way down to 9V input.

Spofi
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Re: Passive POE switch.

Tue Dec 22, 2015 12:36 am

Yes but not all of the equipment on my tower needs the full 24Volts. I could save some precious energy on my solar installations by eliminating the loss from up-converting from 12v and by eliminating the cooling fan (with the WS mini form factor).

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lligetfa
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Re: Passive POE switch.

Tue Dec 22, 2015 1:55 am

So then basically you want Vout to follow Vin like Routerboard or TS5 does. No regulating, no upconverting.

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Re: Passive POE switch.

Tue Dec 22, 2015 2:21 pm

Exactly, but with the performance of the netonix. Ive used the Mikrotik RB, Tycon and Ubiquiti switches and none of them have done as well as the netonix has.

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rebelwireless
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Re: Passive POE switch.

Tue Dec 22, 2015 8:52 pm

I could have seen a use for this in the past. Newer ubiquiti radios don't run as low as older ones did though. You really need something like 16v to reliably power a RocketAC. I've seen RocketM still working at around 12v, but not the AC line.

A decent switching boost converter with mosfets is 90%+ efficient. Consider the added cost in 10% more batteries vs any feature you find on a switch.

Anyway, I'll take the variable input and some extra draw over running APs under-volted. When the volts start to drop on your battery bank it's nice to be able to keep comms up to send an alert to see flaky radios IMO.

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