Switch GS308EP - POE led blinking slow

[Martdor]

Dear all,

Last week, I bought the #300 Series SOHO Plus (GS308EP)  switch. I can access and set up the switch via my computer. However, when I connect a POE device (IEEE 802.3af), the POE LED starts flashing green (1 sec on 3 sec off). I have set the switch port to 802.3af. What could be wrong here?

[Martdor · Accepted solution]

It was an error in my PCB. Sorry for the inconvenience. The PCB was consuming too much current...

[donnamariana]

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[AnishaA]

Hello @Martdor :

And welcome to the NETGEAR Community! 🙂

In which port you have connected? and which POE device(IEEE 802.3af) has been connected to the switch(GS308EP).

For basic, the POE LED status for the device that you have mentioned.

I have set the switch port to 802.3af  >>> Can I get a detailed clarification on the port configuration that you have made?

Have a lovely day, 
Anisha A
Netgear Team 

[Martdor]

Hello @AnishaA,

Thanks for the welcome!

I have connected the POE device to port 2. Which the following settings:

The device is a custom made PCB which include the Onsemi NCP1091 PoE-PD Interface Controller.

The basic LED status for the right port LED does not say anything about slow flashing. What could this mean?

[schumaku]

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@Martdor wrote:

However, when I connect a POE device (IEEE 802.3af), the POE LED starts flashing green (1 sec on 3 sec off). I have set the switch port to 802.3af.

---

What PoE device is plugged here, make, model, firmware please?

Only one PoE-powered device connected?

[Martdor]

It is a self made PCB which include the Onsemi NCP1092. This is a Integrated IEEE 802.3af PoE-PD Interface Controller chip.

Yes only one PoE-powered device is connected. 

[schumaku]

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@Martdor wrote:

The basic LED status for the right port LED does not say anything about slow flashing. What could this mean?

---

Hard to say, any kind of error is possible. Power loop, short circuit, wrong ground e.g. of data wires, ...

not that you don't have it, just for reference: NCP1090 - Integrated IEEE 802.3af PoE-PD Interface Controller (NCP1090, NCP1091, NCP1092) 

[Martdor · Accepted solution]

It was an error in my PCB. Sorry for the inconvenience. The PCB was consuming too much current...