WIKIABOUT

FOR TIPS, gUIDES & TUTORIALS

subscribe to our Youtube

GO TO YOUTUBE

14455 questions

17168 answers

28195 comments

0 members

Most popular tags

rut955 rut240 rut950 rutx11 rms vpn to openvpn wifi not sms trb140 firmware connection - ipsec on rutx12 rutx09 modbus
We are migrating to our new platform at https://community.teltonika.lt. Moving forward, you can continue discussions on this new platform. This current platform will be temporarily maintained for reference purposes.

RUTX11 broken after inserting LAN Cable

0 votes
356 views 6 comments
by anonymous
Hello,

we tried to install the RUTX11 into our system and when connecting the LAN Cable  to our RUTX11 a small spark/smoke was noticable and the RUTX11 switched off. The RUTX was not connected to anything else than power and  the PLC via Lan. Since then the RUTX11 won't power up and no LEDs light up when connecting it to Power. This actually happend to two of our RUTX11 devices.

Now we are concerened, that this will also happen to any replacement we would get.

Do you have an suggestion, why this may have happen? We have no idea, how it is possible in this setup to cause that kind of problem.

Thank you very much in advance,

Maarten Verbunt

2 Answers

0 votes
by anonymous

Hi Maarten,

Please provide answers to the questions below:

1. Can you please confirm which power supply is being used to power up RUTX11?
2. Is it the standard PSU that you received in the package?
3. Also, you said that as soon as you connected the LAN cable to PLC it burnt the device, right? Which router port the PLC was connected to?
4. Can you indicate the PLC model and make? Does PLC support POE? 
5. What type of ethernet cable was used to connect to the LAN port?

Basically, RUTX11 supports two powering options:
1. 4-PIN connector
2. Passive POE ( over LAN port 1)

If you are using any power supply that powers up the device with a voltage higher than 15-50 VDC, there are chances that you would have burnt the device.
As you indicated, you connected the LAN cable and saw a spark. If RUTX11 is powered up via LAN port using IEEE 802.3af-2003, it will damage the device.
https://wiki.teltonika-networks.com/view/RUTX11_Powering_Options

Regards
Ramandeep

Best answer
by anonymous
Thank you for your answer!

Thanks to your hints we noticed, that the problem occured due to usage of the POE over the wrong port!
by anonymous
Hi Maarten,

That's great! Please make sure to connect at LAN port 1 for Passive POE.
by anonymous
Even if POE doesn't work on ports other than 1 would it be possible to add at least a protection so that the device doesn't immediately die ?
by anonymous

Hi Flebourse,

The possible solution could be to use a PoE extractor, which can be used to separate the unwanted power from a PoE cable on the receiving side, allowing only data to be transmitted along the ethernet cable.

 Apart from that, Teltonika might consider adding a label on the devices, so that customers may know which port supports the PoE connection.

Regards,
Ramandeep

 

by anonymous
There is a difference between "plug in the wrong port and POE won't work" and "plug in the wrong port and the device goes up in smoke". The device should have internal PoE extractors or some other form of protection on the lan 2-3-4 and wan ports.

Regards,
by anonymous

Hi,

As of now, we do not have such hardware installed on our devices. It is advised to not use active POE 802.3af-2003 on LAN port 1, as it may burn the device and do not try to power up the device via non-POE ports of the device.
 

Please see the link below for more information:
https://wiki.teltonika-networks.com/view/RUTX11_Powering_Options

Regards,
Ramandeep

0 votes
by anonymous

Hello,

Could you please clarify the following points:

  • Which category cable was used?
  • Was that cable shielded? 
  • Which mode active PoE was used (A, B or 4 - pair mode)?

 

Best regards,

Tomas.