How can contact closure from NVR surveillance system change input on tv? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 09-07-2019, 03:16 PM - Thread Starter
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How can contact closure from NVR surveillance system change input on tv?

The video output from my 16 channel LOREX NVR outputs a 4k HDMI signal that I feed into a 1 in 2 out 4K splitter. One output out of the splitter feeds a dedicated 50" monitor in my main living room. This 50" TV constantly is used 100% to view the output of the NVR. The other HDMI 4K output out of the splitter goes into my main tv which is a 75" . However it goes into HDMI#2 INPUT of my main tv. 99% of the time my main tv is using HDMI#1.

Now I want to use a dedicated contact closure output from the NVR to change the big tv's HDMI input from HDMI1 to HDMI2 whenever the NVR outputs a contact closure. Any ideas on how I can impliment??

When a specific camera sees motion, it triggers the contact closure from NO to NC for a programmed amount of time. Just perfect!! I have a 75" SONY. I need to have the Sony change its HDMI input using contact closure. Ideas? ?? -Greg-
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post #2 of 4 Old 09-08-2019, 06:17 AM
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Does the TV have an RS232 or LAN port for control or is it simply IR control?

CEC is another option though possibly more work that any of the above.

Possibly best to list the model number of the TV and link to the online User Manual.

Joe

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post #3 of 4 Old 09-08-2019, 12:47 PM - Thread Starter
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Quote:
Originally Posted by Joe Fernand View Post
Does the TV have an RS232 or LAN port for control or is it simply IR control?

CEC is another option though possibly more work that any of the above.

Possibly best to list the model number of the TV and link to the online User Manual.

Joe
4K 75" XBR75X940E

This is the TV. Here is the link:
https://www.sony.com/electronics/sup...5x940e/manuals

Thanks for your help. --Greg--

Sony 4K 75" XBR75X940E
Oppo 4K UDP-203 4K Bluray Player
NAD T187 with VM300 4K HDMI card
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post #4 of 4 Old 09-16-2019, 11:44 AM
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So, the Sony's have good IR control, good IP control, and good CEC from what I have heard.

But, they aren't designed to work the way that you are hoping with a basic contact closure.

You will need to research control systems and check the control systems/home automation section of these forums for a good idea of a DiY method to do this.

In my world, I would hook the relay output to my Crestron controller, it would read the relay closure and switch inputs on the TV as appropriate.

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