I’m a proud owner of a RB450G, and I have seen old threads in this forum about what power supply to use with this routerboard model (like this: http://forum.mikrotik.com/t/rb450g-random-shutdowns/38944/1 ). But I don’t know the state of this question with the current RB450G model.
My distributor sold me the router with a 24 volts 1 amper power supply. Do you recommed this type of power supply or another one, like 12v 1a?
Hello,
Don’t worry Mikrotik routers are very flexible in their power requirements. they will take anything from 10 to 28 Volts.
I typically use 24 volt POE and 24 Volt power adapters but quite franky as long as its not lower then 10 and not over 28 they really don’t care. I have a 450G 180’ up a tower and I use 24 Volt 1A and it has been working fine for years.
If you are providing power over a very long PoE cable (or if due to whatever you have had to join two longish cables I would advise a minimum of 18V for your power supply.
I had to do an install in a large factory and it used two cables from the office inside up to the roof (probably about 70M (~230’) and when I plugged in a 12V power adapter it wouldnt light up but I had an 18V with me and that worked (I guess voltage loss over the cable length) same total wattage but the higher voltage was needed.
Routerboards are great with the range of power they can operate with.
I decided to use an 12V 2A adapter. It’s plugged to socket very near to the RB450G. And I also heard that with lower voltage there will be lower power consumption (electricity in Spain is getting very expensive).