Network-controlled power switches/relays?

[Mac]

Just had the experience of designing a multiple outlet web switch.

JAVA/Browser UI with python/RaspPI controller.

In this case I had some serious in rush current issues for a couple of
devices being controlled.

Ultimately switched to SSR's that were rated at nearly 10 x the current
rating of the devices to avoid welded contacts or fried SSR's.

It works, but I'll probably re-write the software with a custom GUI and
skip the web sockets for udp.

Mac

On Tue, Aug 22, 2017 at 3:52 PM, Tom Buskey <tom at buskey.name> wrote:

> I had used a web based PDU with ~ 6 outlets and you could toggle them
> individually.  I wish I could remember the brand/where I got it.  It was
> under $200, maybe closer to $100 and a great deal.  I think it was a
> Cyberguys thing.
>
> There are other PDUs that can do that.  eBay might be the only way to get
> one under $500.
>
> Some UPSes can toggle power per port.  They can certainly turn everything
> off.  Networked ones do so via SNMP/web/telnet/ssh.
>
> At work, we have a WTI unit that will toggle power.
>
>
> On Tue, Aug 22, 2017 at 3:33 PM, Joshua Judson Rosen <
> rozzin at hackerposse.com> wrote:
>
>> Anyone have any experience with ethernet-controlled power relays?
>>
>> I have a situation with a couple of embedded Linux appliances I'm working
>> on,
>> that are deployed hundreds of miles away from me, and I need the ability
>> to power-cycle one of them remotely. Looking for some sort of
>> remote-controlled
>> AC outlet or relay (relay could be an 120V AC relay or a 12VDC relay,
>> actually...).
>>
>> Need one that I can control from a shell login on the other Linux machine
>> at the site, e.g.: a socket interface I can drive with netcat or the like,
>> a web interface that works with w3m or curl, SNMP.... Any of those would
>> be fine.
>>
>> I see a lot of different devices on Amazon that look like they might
>> require
>> an iPhone or Android device running some proprietary GUI app on the LAN,
>> but I'm having trouble telling which are worthwhile and which will be a
>> waste of time.
>>
>> Suggestions?
>>
>> --
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>> m/rozzin>
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>
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