Door Opening Alert cutting out HDMI Monitor feed.

[Taboo]

Hi,

I'm wondering if anyone has any ideas on this? I'm helping my neighbor with his HIK Vision CCTV system (he owns shop). He has a problem when he is running his monitor through HMDI. Every time someone comes though the shop door and the door opening alert bell rings, the monitor will cut to a blue screen for a second or two before displaying the image again. This does not happen when the monitor is running on BNC/VGA, but once the monitor is displaying via a HDMI cable, this is happening every time. The HDMI cable plugged into the monitor is on a Ethernet converter.

Does anyone know why the system is doing this and what to change to stop this?

Kind regards,
Paul

 

[Taboo]

Just some additional info in case this effects the system - He has a monitor in the shop with direct connection (either BNC or VGA) and the second monitor in the living accommodation on the HDMI lead.

 

[TVille]

Sounds like the ethernet/HDMI converter is flaking out with the alert bell ringing. I assume it is from RF interference. Try putting the converter, temporarily in a steel pot, bucket, something steel, to act as a farady cage and see if it stops. It also could be the monitor, but i would bet on the conerter. Also try running the monitor direct form a HDMI without that converter, from a laptop, DVD player, something else. That would rule out the monitor.

 

[Taboo]

Sounds like the ethernet/HDMI converter is flaking out with the alert bell ringing. I assume it is from RF interference. Try putting the converter, temporarily in a steel pot, bucket, something steel, to act as a farady cage and see if it stops. It also could be the monitor, but i would bet on the conerter. Also try running the monitor direct form a HDMI without that converter, from a laptop, DVD player, something else. That would rule out the monitor.

That's great, thank you for the advice. I'll pop in tomorrow and try that. He has already changed the monitor, so can't be that.

 

[TVille]

That's great, thank you for the advice. I'll pop in tomorrow and try that. He has already changed the monitor, so can't be that.

Try to get the pot sealed as much as possible. Even then, RF can flow in on the two cables, and you can't really stop that. Good luck!

 

[sebastiantombs]

You can get toroidal cores that come apart or clamp together so that they act as an RF choke on the HDMI cable if that is the source of the problem.

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[Taboo]

Great advice, thank you, much appreciated