Will a 48v PoE Injection adapter fry my 12v Device?

[Modify_inc]

I have a EnGenius EAP1250 that I would like to power using PoE. The EnGenius device states its power specs are DC IN, 12V/1A and 802.3af/at PoE Input, yet my PoE Injection adapter that I want to buy states its power specs are 48v 65W. Will either of these devices control the voltage so that my EnGenius device is not fried or do I need to find a PoE Injection adapter that is rated for 12v?

I'm worried because 2 or 3 people in the reviews said the following: "Obviously you wouldn't want to use this 48v device on something like a 5v, 12v or 24v POE device or you will fry it!"

That concerns me, because I always thought 48v was the 802.3af standard, and as long as both devices use that standard, then the voltage will be regulated automatically.

Can someone please confirm this? I tried to chat with someone at EnGenius, but it keeps saying that no one is available, and they do not have a phone number.

This is the item I'm looking at. It's cheap, but it's all I need:

iCreatin 4-Ports Passive Power over Ethernet PoE injector Adapter with 48V65W Power supply for 4 IP Camera, VOIP phones or Access Points and more

https://www.amazon.com/iCreatin-4-P..._n_feature_keywords_two_browse-bin:7306160011

 

[dave_the_nerd]

The device says it's 802.3af compliant, which means it should (it had darned well better!) follow the spec and accept 48v over the ethernet port.

The 12v refers to the DC input jack, not the Ethernet port.

My WAP works the same way - it came with a 12v wall wart, but works via 48v PoE just fine.

 

[JoeBleed]

yea, you said you device is 802.3af/at compatible. just make sure that 48v PoE adapter is either 802.3af or 802.3at compatible. It looks like the linked device is 802.3af. Like Dave said, the 12v is for the DC input jack coming from a power brick/wall wart if you weren't going to use a PoE switch or injector. you don't use both; just in case you thought you should.

Some non standard devices may use 24v and require a device that matches it. IE some Engienius and UniFi devices. most seem to have moved to one of the 802.3 standards. At least most i've seen.

 

[mxnerd]

Where are the individual data ports for that iCreation passive power injector?

Pictures show the side of the power adapter, but not the back of the switch?

Besides, it only supports 10/100M, not gigabit?

 

[dave_the_nerd]

Where are the individual data ports for that iCreation passive power injector?

Pictures show the side of the power adapter, but not the back of the switch?

Besides, it only supports 10/100M, not gigabit?

True.

I have one of these; works great.

https://www.amazon.com/gp/product/B001PS9E5I/

 

[mxnerd]

If I were OP I would rather buy either

1. https://www.amazon.com/TP-Link-TL-SG1005P-Gigabit-Ethernet-compliant/dp/B076HZFY3F or

2. https://www.amazon.com/dp/B01MRO4M73/ref=psdc_281414_t1_B076HZFY3F

 

[Modify_inc]

Thanks for all the replies!
I will likely find an alternative, as this one does seem a little sketchy. I may go with the TP Link MxNerd suggested.