Power Rating Controller / Readers

Hello Brian

I just noticed that there are some readers whose specification is 12-16VDC, and we are specifying controllers of 12-24V to work with it.

My experience is that I see the readers as having 16V maximum voutage rating, while the controller supplies normally 24V, which according to the distance of the reader from the controller could drop to 12V before reaching the reader because of cable resistance.

If that is true (in this case), if a reader is close enough to the controller, it will receive 24V. This is 50% above maximum rating and can cause the reader to Zap frequently.

What is your take on this?

Gani

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