On/off switch for POE+ power control

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1

I am looking into automation options for my front gate. I can get POE+ (min25w) to the lock/gate and was looking at the below device which seems to fall within POE+ power ability. I was thinking to strip the Ethernet POE wires to power this unit but I am not sure what device I can use to add to Hubitat to control the on/off of the POE power to the gate lock.
Any ideas on already built device that I could purchase to achieve the power on/off control?
P.s Poe comes out of a 48port Poe switch

5YOA Magnetic Lock Electronic Door Lock Electric Gate Opener Suction Holding Force Electromagnetic for Access Control System
https://a.aliexpress.com/_mrUnTpA

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Most PoE switches need to negotiate a power configuration with the connected client before they will actually send voltage down the Ethernet wires.

Which switch are you using?

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I used a http://d.digikey.com/dc/mn-w0iJh4uEE_bUitNCuXmOASUNxIUHHNt2ANEnMXZ_JQqkMxIStFxnvSrf1Vx5dOHHYmtO2AEDNXsYhtlHIpDgRu5_YlPT2v3DyjC5DNvlZ8CQ6carbodx3zoHmMf6igSgrqS2KzYi84KZsBJcobThzT8BeYBJg_guA_lMKcrM=/MDI4LVNYSy01MDcAAAGUN9Ftirf3sduX6l2Qoq-KgaXUIuDzMeVUwj5G_H_OiLPbAG51JPbMMdyl2AxHpwz_3-PI1uQ=

However, your switch would need to have control over the PoE, and you'd need some programmatic way to cycle the port.

I have a Ubiquiti, and there are integrations that let me control individual PoE ports.

The relay and PoE cycle time is almost unbearably slow though. Although to be fair, that could be Ubiquiti's glacially slow interface. :wink:

S

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4

:open_mouth: never seen one of those before. Datasheet says it works with 802.3af/at/bt. Very cool.

5

Yeah, I have some RS485 Illuminance sensors, and a PoE RS485 to ethernet thingy, and my thought was to use 1 port of PoE to power the RS485 adapter, and another port for this relay to power the Sensor.

Never got far with it, because right after I got all the bits, Zooz put out the DC powered ZAC70s, and I just used a couple DIN rail PSUs for power, and ZWave for control.

If I need to control the PSUs for recycling the sensors, I'll just use a Zen51 or one of the little Tuya switches that are so cheap on Aliexpress!

S

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My switch is an netgeR switch, I was thinking of using a Poe splitter to trick the port into negotiating 12v power
Like this one:
I just found this on AliExpress: AU$5.49 | POE Splitter Gigabit For Switch Ports CCTV IP Cameras 48V to 12V 2.5A 30W 15W Gibabit 1000mbps RJ45 To DC Supply Power Splitter

But I am not sure how to control the on off of the power? Is there a 12 v zigbee relay or micro switch that i could connect after the pow splitter perhaps to control on/off?

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Might you have a link to relay that supports 12v input ( dc from the splitter I think) and 12v output and is remote controllable by Hubitat please?
If there is no such relay I might have to look into
Scripting a command to turn on/off the Poe on the specific port (which my netgear Poe switch supports in the GUI at least but not sure remote commands)

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This should work. The diagrams show a 12VDC mode.

S

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Details for this unit state no voltage in output:
“Easy to setup: with AC 110-240V,it's clean contact,passive output,no current pass through the board,without voltage at output”

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Good point. Sorry.

I'm still looking. You need a DC switch...maybe this?

Or this I think you'd want the 2 channel 7-32VDC model.

S

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I use a Zooz Zen17 to control my gate. Since the gate is 12Vdc and the Zen17 could use 12-24Vdc or USB for input. There's no need for multiple power supplies. You could use the 12Vdc to control the gate and the power for the Zen.

edit : one other pros with the zen17. It's LR so distance is better especially for external gate.

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Sounds great but I don’t think Zooz make Australian zwave frequency (one major problem with zwave)

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What exact netgear switch are we talking about. Seems like the most direct route to manage power would be at the POE switch.

I did a quick search and found a few links to netgear equipment being managed by SNMP or Netgear CLI tool.

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A ZigBee alternative (more or less) to the Zen16/17 is the Aqara Dual Relay Module T2.

Driver from @dandanache

Specs

image
image2106Ă—772 46.6 KB

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I already looked into this and my switch is not “fully managed” and does not have cli, although I managed to get into limited debug mode through telnet. I will try one of the relays suggested and report back.
Thanks for the suggestion!

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