EAP-225 V3.8 only passive 24v no 802.3 af/at

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EAP-225 V3.8 only passive 24v no 802.3 af/at

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EAP-225 V3.8 only passive 24v no 802.3 af/at
EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-09 18:16:17
Model: EAP225  
Hardware Version: V3
Firmware Version: EAP225(US)_V3_2.6.1 Build 20191022

Good afternoon all.  I am in need of a spot of help if anyone is able.  I am trying to get an access point setup in my house to extend coverage.  Here are the hardware details.

 

EAP-225 v3.8 access point using latest firmware.

Mokerlink poe+ 8 port switch 802.3 af/at 120w 

 

For some reason i cannot get the access point to power on using the 48v poe from the switch.  I have checked the switch and have confirmed 2 ways it is working.  I tried a 802 .3 tester and am getting af/at on both a and b port configurations, and i also have a poe camera plugged in and working with no problems.

 

When i use the 24v injector the device powers on and has internet connection when pulling data from the same switch.  No problems there.

 

I updated the firmware today.  I have tried multiple different cables and no change.

 

I bought the access point from amazon and it appeared to be unused when i got it.  Maybe just a defective unit?  

 

Any help would be great and welcome.  Thanks for your time and patience.

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#1
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7 Reply
Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-10 00:55:19

@4cy2v8 

EAP225 V3 supports 802.3af poe and passive poe, we can t see this information from the website. 

 

 

For some reason i cannot get the access point to power on using the 48v poe from the switch.

When you connect the EAP to the switch, is the LED of the EAP on? What's the model of your switch? We want to know some information of it. 

 

 

 

 

 

 

 

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#2
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-10 02:22:47

@forrest 

 

I am doing this pilot as a proof of concept exercise before spending alot of money on a POE+ security camera and AP setup for my home.  I just wanted to get it up and running first before getting into something more expensive.  At the end I am going to need probably 3 AP's and 6-8 POE cameras for the install I want.  I am trying to work out all the bugs, and see what works.

 

This is the Switch.

https://www.amazon.com/gp/product/B07SGBZ12B/ref=ppx_yo_dt_b_asin_title_o03_s02?ie=UTF8&psc=1

 

This is the POE tester.

https://www.amazon.com/gp/product/B013P3DBQS/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

 

When I plug in the AP to the switch, NO lights on the AP.  The switch does not light up either, like nothing is attached.  Tried all different ports on the switch, no change.  Plug it into the included passive 24v injector, AP works fine using internet coming from the same poe switch. 

 

When I test the power coming out of the switch with the tester, both the mode A and B lights flash which I believe indicates that the switch is functioning normally.  The switch seems to operate as designed,  as a POE camera hooked up works fine as well. 

 

Tried 3 or 4 different cat5, 5e, and 6 cables no change.  All the cables are like 2 feet in length so I dont thik the cable is the problem.   

 

I have ordered a poe to passive adapter to drop the 48v poe down to 24, but i dont want to have to do that 2 more times.  The literature said 802.3 af/at compatable and i thought it should work as advertised.  

 

Thanks for the help and have a good night.  

 

 

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#3
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-10 03:44:05

@4cy2v8 

We have checked the information of the switch, and we found that this switch cannot power for the devices which support both 802.3af/at and passive poe. 

Therefoe, we recommend you to contact the spuuort of the MokerLink. 

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#4
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-10 22:53:51

@forrest 

Maybe I am confused.  When I look at the TP-link website for this EAP-225 wireless access point it States:

 

"Multiple PoE Options for Easy Installation

EAP225 supports both 802.3af PoE and Passive PoE power supply, can be either powered by a PoE switch or the provided PoE injector, making deployment effortless and flexible."

 

The moker link website states, "Support IEEE 802.3af/at" at all 8 ports for switch model #POE-F082G.  This claim is confirmed by the results i got when I checked using a POE tester.

 

You are saying that the switch must have both 802.3 af/at and passive POE capabilities built into it?   I shouldnt have to have the passive POE in order to use the IEEE 802.3af/at power supply.  So when I plug it in it should work.  But it does not.  

 

I guess this combination is just not complatable.  I will try and another avenue to get my wireless dead spots covered.  Thank you for your time and help.

 

 

 

  

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#5
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-11 00:48:49

 

4cy2v8 wrote

You are saying that the switch must have both 802.3 af/at and passive POE capabilities built into it?

 

No. forrest wrote that the Mokerlink switch handles 802.3af/at PoE in a way which can not co-exist with the mixed 802.3af/passive PoE power feature of an EAP.

 

You should either complain to Mokerlink support or use a PoE switch which implements 802.3af/at so that its PoE negotation isn't being screwed up when connecting devices to it which can also be powered by passive PoE.

 

For example, consider a T1500G-10PS which is able to drive EAPs without any problem using 802.3af (but not by issuing passive PoE to them!).

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#6
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-11 13:21:21

@R1D2 

 

R1D2 wrote

 use a PoE switch which implements 802.3af/at so that its PoE negotation isn't being screwed up when connecting devices to it which can also be powered by passive PoE.

 

 

What identifies a switch as doing what you described?  Is there something i should look for when searching out a desired switch?  

 

Will TP link.switch T1500G-10MPS be compatable?  Pardon my ignorance I didnt mean to insult anyone, i didnt know there was such a conflict.    Thanks for the explanation.

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#7
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Re:EAP-225 V3.8 only passive 24v no 802.3 af/at
2020-02-11 13:43:02 - last edited 2020-02-11 13:53:41

 

4cy2v8 wrote

Will TP link.switch T1500G-10MPS be compatable?  Pardon my ignorance I didnt mean to insult anyone, i didnt know there was such a conflict.    Thanks for the explanation.

 

You're welcome anytime. I see no insult in your legitimate questions.

 

Yes, T1500G-10MPS works fine with EAPs, I use this for our customers, too. It even has a PoE power budget to feed up to eight EAP225. But note that T1500G-10MPS has a fan, while T1500G-10PS, which can feed up to four EAP225, is fanless and thus more silent.

 

As for compatibility I can only guess: A vendor can implement different methods to have a PoE switch (the PSE) check for a powered device (PD). Any PoE switch which tests for 802.3af, 802.3at and A/B wiring methods fully complies with the standard.

 

AFAIK, the 802.3af/at standards do not require to check for cases where a PD can use both, the standard PoE and the »passive« PoE methods. What's more, passive PoE almost always is a proprietary solution, albeit most vendors have agreed to the same wiring scheme (B) in case of passive PoE. But older switch designs probably didn't take this into account, since it was not common so far to allow both PoE methods in a single powered device. 

 

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