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Technical News & Discussion => Networking & Routers => 2-Wire 2700 => Topic started by: joe on Jun 25, 2010, 12:23:34

Title: Power supply - tip -ve or +ve
Post by: joe on Jun 25, 2010, 12:23:34
Which is it?
Title: Re: Power supply - tip -ve or +ve
Post by: Den on Jun 25, 2010, 12:35:12
What is the question ?
Title: Re: Power supply - tip -ve or +ve
Post by: Glenn on Jun 25, 2010, 12:39:13
Den, the clue is in the title of the thread.  ;)
Title: Re: Power supply - tip -ve or +ve
Post by: Steve on Jun 25, 2010, 13:10:14
You often see a little diagram on the device as to whether the inner or outer is positive
Title: Re: Power supply - tip -ve or +ve
Post by: Polchraine on Jun 25, 2010, 13:16:05
There is an indicator on the back of the Power Supply block.

And whilst unlikely, they could be a change in spec between models - it has happened before on other devices, so giving one answer could actually be wrong.



Title: Re: Power supply - tip -ve or +ve
Post by: Steve on Jun 25, 2010, 13:38:47
i.e (http://www.electro-tech-online.com/attachments/general-electronics-chat/34371d1255492182-power-supply-problem-20071107142818-ac_adaptor_polarity.png)
Title: Re: Power supply - tip -ve or +ve
Post by: Ted on Jun 25, 2010, 17:23:41
I have 3, they are all center pin positive, outer negative, assuming we are talking about the PS for a 2700 which I'm sure we are.
Title: Re: Power supply - tip -ve or +ve
Post by: joe on Jun 25, 2010, 18:46:27
Yes we are, thanks. I'm having trouble with iTunes 9.2 and had disconnected my 2Wire and gone back to my Netgear DG834GT unfortunately splitting the changeable tip thingy on the PS - hence my question.
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