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Unread 17-02-2016, 08:05
pblankenbaker pblankenbaker is offline
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VRM experience and rule R43

Hello, we have a few questions regarding the practical usage of the VRM module. Rule R43 in the game manual states:

Quote:
R43 The Wireless Bridge power must be supplied directly by the 12V 2A output of a Cross the Road Electronics Voltage Regulator Module (VRM) (P/N: am-2857, 217-4245) and must be the only load connected to those terminals.
Is the following interpretation of the above rule correct:
  • Do not use the other pair of terminals in the 12V 2A section of the VRM to supply power to any other devices (assume the radio will use the full 2A).
  • It is OK to use the 12V 500ma, 5V 2A, and 5V 500ma terminals for other purposes.

If it is OK to use the 12V 500ma, 5V 2A and 5V 500ma terminals, I then have the following questions:
  • Should you avoid doing so anyway and dedicate the entire VRM to the radio (I'd hat to lose the radio during a match).
  • Is it true that the 5V 2A connectors are for a total of 2A (not each pair) and that this is peak load only (they are limited to 1.5A continuous).
  • Is there a total output wattage one can use as an estimate for what the VRM is capable of reliably running at? If so, is it something like: 12V * 2A + 12V * .5A + 5V * 2A + 5V * .5A = 42.5W?

We are looking at powering a Axis M1014 (5V .6A) and D-Link small 5 port network switch (5V .5A) and are trying to determine if we should add a second VRM module or if its OK to load up the 5V connectors on the VRM that supplies the radio.

Thanks for any help or comments you can offer and I apologize if I didn't use the correct terminology to describe my questions (I'm more of a software guy).