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Audio mute signal by Raistlin

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Raistlin
Does anybody know the nature of the "Audio Mute" signal found as a function in most recent vehicle audio systems please?

By nature, I mean, earth or voltage or resistance value :)

Thanks :)
Paul

Cogito ergo sum... maybe?

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Posted 23 Jun 2014, 17:39 #1 

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Duncan
Mostly, the signal is pulled high inside the radio via a resistance, and the telephone pulls it to ground for mute.
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Posted 23 Jun 2014, 19:19 #2 

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Raistlin
Thanks Duncan :)
Paul

Cogito ergo sum... maybe?

Click the image to go to Nano-Meet Website
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Posted 23 Jun 2014, 19:37 #3 

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