Router Power Supply

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Philica

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#61887 25-May-2010 16:35

I recently got given a free router off a friend but it didnt come with any power supply. Its rated for 12v 0.8A. I have a supply thats rated for 9v and 1A but i assume this wont be good long term. The router is a HUAWEI smartAX Mt882 that vodafone was giving out for new connections. Does anyone know where i could get something to power the router?

Thanks.

sbiddle

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#334635 25-May-2010 16:49

Just stop by at Jaycar or DSE and buy a new 12V regulated power supply.

raytaylor

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#335982 28-May-2010 23:55

The voltage is important when buying a power supply - but the Amps only needs to be at least what it says on the router.

So a 12v 500ma wouldnt work.
A 12v 800ma would be the bare minimum.
12v 1a would be what i recomend - probably in stock and cheap
12v 2a would be also suitable as the amps is higher than the minimum requirement.

People from dick smith send customers to us because they dont have a 750ma or something when a 1a would be fine - the staff there just dont know any better.

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Philica

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#336122 29-May-2010 17:55

raytaylor: The voltage is important when buying a power supply - but the Amps only needs to be at least what it says on the router.

So a 12v 500ma wouldnt work.
A 12v 800ma would be the bare minimum.
12v 1a would be what i recomend - probably in stock and cheap
12v 2a would be also suitable as the amps is higher than the minimum requirement.

People from dick smith send customers to us because they dont have a 750ma or something when a 1a would be fine - the staff there just dont know any better.

Thanks thats exactly the answer i needed.

webwat

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#336172 30-May-2010 00:31

You might want to check if the Huawei needs a regulated supply, otherwise the Amps rating can make a difference by allowing higher voltage under minimal load. I would recommend Surplustronics on Queen St.

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System

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#336194 30-May-2010 08:45

raytaylor: The voltage is important when buying a power supply - but the Amps only needs to be at least what it says on the router.

So a 12v 500ma wouldnt work.
A 12v 800ma would be the bare minimum.
12v 1a would be what i recomend - probably in stock and cheap
12v 2a would be also suitable as the amps is higher than the minimum requirement.

People from dick smith send customers to us because they dont have a 750ma or something when a 1a would be fine - the staff there just dont know any better.

Wrong, its because DSE only has a 12V power supply that does 700ma and nothing higher.

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Philica

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#340972 12-Jun-2010 16:13

So i found an old 12v 2a power supply laying around. So this should work?

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robjg63

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#340974 12-Jun-2010 16:31

If the plug is the same (the round one) then you just need to make sure that you know whether the centre part is + or - and that it matches the old power supply - either that or often the socket on the device will have a diagram showing whether the tip of the socket should be + or -

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Philica

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#340987 12-Jun-2010 17:52

robjg63: If the plug is the same (the round one) then you just need to make sure that you know whether the centre part is + or - and that it matches the old power supply - either that or often the socket on the device will have a diagram showing whether the tip of the socket should be + or -

Hmm. Unfortunately there is no markings on the socket or power supply to indicate whether the center should be + or -. They look exactly the same though. Will i fry it if the supply is the wrong way around or will it just not work?

raytaylor

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#341037 12-Jun-2010 20:10

On the power supply, it should have a symbol like this

If there is no symbol like that, it means the output is AC and not DC. If it is AC it will fry the device if it is expecting DC.

If it is a DC device, make sure the + and - are around the right way. When someone says positive tip, it means the centre of the plug is +, or the middle of the symbol is + as shown above.

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Philica

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#341277 13-Jun-2010 18:12

Yea its an AC power supply. Lucky i didnt plug that in. Thanks for the help.

Agent24

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#344825 24-Jun-2010 11:02

Does it look exactly like this?

Because this says 12v AC 0.8A...

Interestingly, Huawei's website (http://www.huawei.com/products/terminal/products/view.do?id=121) specified 9v AC 1A - but that might be for a different revision.

Does yours say AC or not?

The manual from Vodafone (http://www.vodafone.co.nz/documents/pdf/modem-guides/vf-MT882-bb-fullmanual.pdf) also details the power supply as 12v AC 0.8A

You should be able to find a suitable power supply on TradeMe actually.

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webwat

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#344863 24-Jun-2010 13:09

I presume you have already tried to contact Huawei for a power supply? I think they manage NZ from Australia but can still give them a call...

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Agent24

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#344870 24-Jun-2010 13:30

webwat: I presume you have already tried to contact Huawei for a power supply? I think they manage NZ from Australia but can still give them a call...

Quite likely they will but it wouldn't expect it to be cheap. I tried the same thing with D-Link and they wanted $60 for a new adaptor!

That's why I suggested TradeMe, I ended up getting one for mine for $12 - intended for a Linksys router but the ratings are the same and it works perfectly.

Non-system disk or disk error. Replace and strike any key when ready.

Philica

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#344958 24-Jun-2010 17:34

Agent24:

Because this says 12v AC 0.8A...

Interestingly, Huawei's website (http://www.huawei.com/products/terminal/products/view.do?id=121) specified 9v AC 1A - but that might be for a different revision.

Does yours say AC or not?

The manual from Vodafone (http://www.vodafone.co.nz/documents/pdf/modem-guides/vf-MT882-bb-fullmanual.pdf) also details the power supply as 12v AC 0.8A

You should be able to find a suitable power supply on TradeMe actually.

Yea it does. So im using the 12v 2a supply i found. It seems to be working fine. If it dies ill buy a decent modem/router.