POE 8 Port Injector

5 posts / 0 new

Mon, 07/31/2017 - 13:03

KE6UPI

POE 8 Port Injector

Hello, I founds this 8 port POE injector on amazon. I'm not sure what Ubiquiti uses. Would this unit work?

https://www.amazon.com/dp/B0086SQDMM/ref=cm_sw_r_cp_dp_T2_7e2Fzb8JEZJZ2

Remote power up to 8 Access points, phones or cameras, includes 48 volt 60 watt power supply for 802.3af devices
Passive Power over Ethernet (PoE) technology; power is always on to all 8 outlets
Powers 802.3af devices up to 7.5 watts average each; we also have 120w kits and other products for gigabit speeds
If your device specs "12v, PoE" then this means 12v locally, 48v via the Ethernet - see our video for an explanation
Expert USA Tech Support - call 512 479 0317

Mon, 07/31/2017 - 14:07

KD2BKD

Looks like this is a 48VDC

Looks like this is a 48VDC POE which will blow the unit. Ubiquiti uses 24VDC output at the injector typically which will be 12VDC at the node with long wire.

Mon, 07/31/2017 - 14:40

(Reply to #2) #3

K5DLQ

yes. This is a 802.3af

yes. This is a 802.3af-compliant PoE (ie. 48V with smart signaling), not the "passive" PoE that most AirMax devices use.

Mon, 07/31/2017 - 18:48

(Reply to #3) #4

AE6XE

I think the advertisement is

I think the advertisement is misleading--says it can power 802.3af devices. But the supply is passive 48v. I have a couple of these passive 8-port strips, they work fine and can help to reduce the count of power connectors needed. I'm using them with 12v battery system.

Joe

Mon, 07/31/2017 - 21:37

KE6UPI

Thanks everyone

I ordered the one without the power supply.I'll use a 12-24 power supply.

David

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