Alright, say, my aftermarket Android Stereo Unit has only 1 input RCA port which means only one video source is available/activated at one time say Rear Camera, in short RCam.
Now, I want to add second video source say Front Camera, in short FCam, to the same input RCA port of the Android Unit using 2 input RCA to 1 output RCA splitter cable as shown in attached photos. I add a switch to the power supply side of the FCam so that I will be able to switch between the 2 Cameras with only one camera activated at a time. Cameras has 4 wires - power, ground, video signal and video ground, of course, Earth exists and is not shown here.
The inner rings of the input 2 RCAs are internally connected marked as "BLUE COLOR" and through to the inner ring of the output RCA port. And, the outer ring of the input 2 RCAs marked as "BLACK COLOR" are also connected together with the corresponding outer ring of the output RCA port. Hence, are grounded.
Now, that when the RCam is ON, the video signal flows from pin 2 (BLUE COLOR) of the splitter RCA, and all the way to the inner ring of the output RCA, hence, displaying images/videos on the Android unit properly. But, at the same time, since the inner rings of the input RCAs are internally connected, the same video signal is also available at the pin 3 of the lower RCA port.
In this scenario, I have the following questions:-
1. Will this reverse signal voltage flows back into pin 3 of the lower RCA although the FCam is not power ON i.e. Switch is OPEN?
2. Will this signal voltage of the CCTV1 have any affect/damages on the FCam although the FCam is power OFF i.e. Switch is OPEN?
3. Will there be signal distortion at the Android due to this signal voltage at pin 3?
4. Same confusion for RCam when FCam is ON.
5. If any affect arises due to this video signal voltage, how do I rectify this so that I can use any of the 2 Cameras at one time using the same 2 in 1 RCA splitter cable? Will diode or capacitor etc works to BLOCK this signal voltage so that the signal voltage does not reach pin 3 when RCam is ON, and does not reach pin 2 when FCam is ON?
Now, I want to add second video source say Front Camera, in short FCam, to the same input RCA port of the Android Unit using 2 input RCA to 1 output RCA splitter cable as shown in attached photos. I add a switch to the power supply side of the FCam so that I will be able to switch between the 2 Cameras with only one camera activated at a time. Cameras has 4 wires - power, ground, video signal and video ground, of course, Earth exists and is not shown here.
The inner rings of the input 2 RCAs are internally connected marked as "BLUE COLOR" and through to the inner ring of the output RCA port. And, the outer ring of the input 2 RCAs marked as "BLACK COLOR" are also connected together with the corresponding outer ring of the output RCA port. Hence, are grounded.
Now, that when the RCam is ON, the video signal flows from pin 2 (BLUE COLOR) of the splitter RCA, and all the way to the inner ring of the output RCA, hence, displaying images/videos on the Android unit properly. But, at the same time, since the inner rings of the input RCAs are internally connected, the same video signal is also available at the pin 3 of the lower RCA port.
In this scenario, I have the following questions:-
1. Will this reverse signal voltage flows back into pin 3 of the lower RCA although the FCam is not power ON i.e. Switch is OPEN?
2. Will this signal voltage of the CCTV1 have any affect/damages on the FCam although the FCam is power OFF i.e. Switch is OPEN?
3. Will there be signal distortion at the Android due to this signal voltage at pin 3?
4. Same confusion for RCam when FCam is ON.
5. If any affect arises due to this video signal voltage, how do I rectify this so that I can use any of the 2 Cameras at one time using the same 2 in 1 RCA splitter cable? Will diode or capacitor etc works to BLOCK this signal voltage so that the signal voltage does not reach pin 3 when RCam is ON, and does not reach pin 2 when FCam is ON?
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