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> The user manual of the C-Control-1 V2 (M-Unit and station ) warns that the digital ports may never deliver more than 20mA. That is 20mA per port, then. > Question 1: If all 8 digital ports feed the C-Control relays amplified by transistors, are we above 20 mA ? Depends, and irrelevant. 20mA per port may not be exceeded. > How many activited ports before reaching 20 mA ? Depends, and irrelavant. > Question 2: What if the ports deliver more than 20mA together ? Dammage ? If "the ports" deliver more than 20mA alltogether, while not any single port delivers more than 20mA, then you're working within the specification of "20mA max per port". If a single port delivers more than 20mA then damage probably will happen. > Question 3: If nobody can answer question 1, who is ready to volunteer to activate one by one his output ports to feed the amplified Conrad relays ? And then tell on the forum when his C-control blew up... Yeah, right! ;-) HTH Bye Achim |
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