RB2011UiAS-RM work on 12V DC?

Other topics MikroTik hardware questions
1

Specs on this say it accepts 8-30V DC

Included power supply is 24V DC.

I would like to add it/power it off of a rack mount power supply “wall wart eliminator” from Middle Atlantic or Snap
https://www.snapav.com/shop/en/snapav/wattbox-trade%3B-rack-mount-power-supply-wb-rps-dc

They do 12v or 5v.

Since the 2011 accepts 8-30V DC, am I safe in doing this w the rack power supply set at 12V DC? I’ve tried it, and it works. But I just want to make sure I’m not going to have future issues from being underpowered.

Thanks


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2

As long as the PSU provides enough amps, you won’t have any underpowering or other problems in your scenario (would be different if you powered the 2011 via PoE-In using a long cable).

RB2011 original power adapter is 24V @ 1.2A, i.e. Maximum Power = 24V * 1.2A = 28.8W. I doubt maximum power draw from a 2011 exceeds 20W (and possibly 15W).

Let’s assume maximum power draw is 30W as per the original adapter. As long as the PSU is rated for 30W = 12V * I; I = 2,5A, you won’t have any problem… from the page you posted looks like it’s rated for 10A.

3

The piece I linked to is rated at 10A yes. But that’s 10A total. Each port is rated at 1.3A.


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4

No problem either. I found the power rating of a RB2011UiAS-2HnD-IN as 11W, yours is the non Wireless version, so max power will be less.

For 12V: 11W=12V*I; I = 0.91A. So you have enough margin even with the 1.3A limitation.

5

Awesome. Thanks!


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