Flickering remote monitor on NVR system

[JonG_Houston]

I’m installing my second surveillance system. The new system is a Revo Ultra 4K 16 channel system. The NVR is in a locked closet and I have two remote monitors.
The NVR HDMI- HD (not 4K) output goes to a pair of Mirabox HDMI to cat5e TxRx boxes to transmit the video to my screens. The 16 camera feeds work fine to one screen.
Here’s the problem-
When I route the cat5e from the mirabox to an Netgear unmanaged gigabit switch to the one screen -the images are unstable. Flickering between a good signal and blanked screen every second or two. The purpose of the switch is to broadcast the video to the second screen.
Any thoughts why the image is unstable?
Thanks in Advance
Jon

 

[TonyR]

Are your Ethernet cables home-made or manufactured?
If home-made, are they made to T-568B spec?

If you...

• Followed manufacturer's connection criteria
• Box-to-box is on it's own, isolated network as below image
• You've tried another good, manufactured CAT-5e cable
• You've tried another switch

...and still have an issue, I'd contact Mirabox, especially if in warranty.

 

[JonG_Houston]

Are your Ethernet cables home-made or manufactured?
If home-made, are they made to T-568B spec?

If you...

• Followed manufacturer's connection criteria
• Box-to-box is on it's own, isolated network as below image
• You've tried another good, manufactured CAT-5e cable
• You've tried another switch

...and still have an issue, I'd contact Mirabox, especially if in warranty.


View attachment 78315

TonyR, thanks for the response. Cables tried both manufactured and homemade. Same result. Everything works fine through the Miraboxes until I add the switch.
Yes I'm wired up exactly like the diagram. If I bypass the switch and run my Cat5e from Mirabox TX to Mirabox RX to screen -everything works well. It's the switch that is causing the problem.
Yes next step is a different switch.
I'm using a Netgear GS105v5 switch. Not an expensive piece of hardware.
Hate to have a pile of switches sitting around and none of the work...?
Do you have a different type of switch in mind?

 

[TonyR]

Do you have a different type of switch in mind?

Strange...I've used probably a half dozen of the 5 & 8 port versions of yours with no issues in a typical network environment.
I've also used with good results several of these ==>> TP-LINK TL-SG105

 

[JonG_Houston]

Thanks I may try to TP link.