Hello.
I have a question about the correct voltage on routerboard.
Lets say I have a RB433. This accepts 10..28 volts, right?
But my question is: If my board have 2 mini pci cards, this will work with 10 volts? or I need more than this because of the pci cards?
What is the correct voltage to work?
How calculate the voltage needed by board to work correctly?
Thanks!
The voltage limits are on the data sheet. It is the power supply current that you need to calculate.
The cards work on 3.3v and supplied by a regulator on the router.
Not hard to calculate the current tho. The formula is I = P / E
If the RB uses 4 watts, and the two radios use 3 watts each (6 watts total for radios), that is 10 watts.
At 10 volts, that is 1 amp.
At 20 volts, that is 1/2 amp.