Linksys WRT54G power adapter?

I was recently given a Linksys WRT54G wireless router but not a power
adapter. As such, I am kinda in need of a power adapter but am not
really sure where to get one. I looked on eBay to no avail...

[POSTED TO alt.internet.wireless - REPLY ON USENET PLEASE]

In <(E-Mail Removed). com> on 9 Mar 2006
11:00:22 -0800, "yawnmoth" <(E-Mail Removed)> wrote:

>I was recently given a Linksys WRT54G wireless router but not a power
>adapter. As such, I am kinda in need of a power adapter but am not
>really sure where to get one. I looked on eBay to no avail...

Radio Shack.

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Best regards, SEE THE FAQ FOR ALT.INTERNET.WIRELESS AT
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"yawnmoth" <(E-Mail Removed)> wrote:
>I was recently given a Linksys WRT54G wireless router but not a power
>adapter. As such, I am kinda in need of a power adapter but am not
>really sure where to get one. I looked on eBay to no avail...

Depending on the hardware version, it'll probably take anywhere
between 5 and 25 volts DC at a few watts. IIRC Linksys ships the V4
(and, I'm nearly certain, the V5) with a 12VDC, 1A supply, with center
pin positive.

Radio Shack will be able to help you.

On 9 Mar 2006 11:00:22 -0800, "yawnmoth" <(E-Mail Removed)> wrote:

>I was recently given a Linksys WRT54G wireless router but not a power
>adapter. As such, I am kinda in need of a power adapter but am not
>really sure where to get one. I looked on eBay to no avail...

The original version of the WRT54g v1.1 used a 5VDC 1.5A adapter.
The current versions all use 12VDC 1000mA adapters. The outer ring is
negative. The center pin is positive.

The WRT54G will tolerate a very wide range of DC input voltages. I've
tested mine and it runs on anything between about 4VDC and 18VDC. I
would not go much above 18VDC. The switching regulator can take it
but the input filter capacitor might not.

I'm currently running the WRT54Gv3 that's sitting on my server pile on
a 9VDC 1A power supply that appears to have come from the junk heap.
In other words, almost any voltage will work as long as the adapter
can deliver at least 1A.

The connector is 5.5mm O.D. and 2.5mm I.D. Radio Shock type "N" plug.

The original part is a Linksys AM-1201000D41

Go to eBay search and try "12v 1a" or "12v 1000ma". You have 75 to
chose from.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 (E-Mail Removed)
# http://802.11junk.com (E-Mail Removed)
# http://www.LearnByDestroying.com AE6KS

Adaptor rating is 5volts @ 2amps. Center pin positive.
You'll need to match the size of the recieving connector.

In article <(E-Mail Removed)>,
Jeff Liebermann <(E-Mail Removed)> wrote:
>On 9 Mar 2006 11:00:22 -0800, "yawnmoth" <(E-Mail Removed)> wrote:
>
>>I was recently given a Linksys WRT54G wireless router but not a power
>>adapter. As such, I am kinda in need of a power adapter but am not
>>really sure where to get one. I looked on eBay to no avail...
>
>The original version of the WRT54g v1.1 used a 5VDC 1.5A adapter.
>The current versions all use 12VDC 1000mA adapters. The outer ring is
>negative. The center pin is positive.
>
>The WRT54G will tolerate a very wide range of DC input voltages. I've
>tested mine and it runs on anything between about 4VDC and 18VDC. I
>would not go much above 18VDC. The switching regulator can take it
>but the input filter capacitor might not.
>
>I'm currently running the WRT54Gv3 that's sitting on my server pile on
>a 9VDC 1A power supply that appears to have come from the junk heap.
>In other words, almost any voltage will work as long as the adapter
>can deliver at least 1A.
>
>The connector is 5.5mm O.D. and 2.5mm I.D. Radio Shock type "N" plug.
>
>The original part is a Linksys AM-1201000D41
>
>Go to eBay search and try "12v 1a" or "12v 1000ma". You have 75 to
>chose from.

Thanks for this ... it is very timely as I am in the same situation as the
OP. I recently got a flea market special WRT54G V1.0 which, according to
the published specs, uses a PS that supplies 5VDC at 2 amps. The vendor
supplied a PS which outputs 7.5 VDC at 1.5 amps ... which successfully
powers it, but I was concerned about excess heat production from the
regulator. Do you believe it is safe to use this PS long term?

(E-Mail Removed) (Mike S.) hath wroth:

>>The original version of the WRT54g v1.1 used a 5VDC 1.5A adapter.

Sorry. That should be 5VDC at 2.0Amps for Version 1.0

>Thanks for this ... it is very timely as I am in the same situation as the
>OP. I recently got a flea market special WRT54G V1.0 which, according to
>the published specs, uses a PS that supplies 5VDC at 2 amps. The vendor
>supplied a PS which outputs 7.5 VDC at 1.5 amps ... which successfully
>powers it, but I was concerned about excess heat production from the
>regulator. Do you believe it is safe to use this PS long term?

The power supply should NOT get hot. If it does, that means that the
transformer core in the wall wart is saturated and probably
overloaded.

You will need to get the correct 5V 2A power supply. I just noticed
that unlike V1.1 thru 5.0, the original V1.0 may not have the nifty
internal switching regulator. Notice the photos at:
http://www.linksysinfo.org/modules.p...showpage&pid=6
I'm not sure, but it appears that the V1.0 version does not have any
switching regulator that gives the WRT54G the wide power supply range.
Difficult to tell from the photos. Therefore, I suggest you play it
safe and purchase a 5.0VDC 2Amp power supply and NOT try the 12V 1A
supply used later versions.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

My V5 is 12V pos center pin 500 mA. Very standard power adaptor. You could
probaby get one at any electronics store or nearly free at a thrift shop.

Bubba

"William P.N. Smith" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> "yawnmoth" <(E-Mail Removed)> wrote:
>>I was recently given a Linksys WRT54G wireless router but not a power
>>adapter. As such, I am kinda in need of a power adapter but am not
>>really sure where to get one. I looked on eBay to no avail...
>
> Depending on the hardware version, it'll probably take anywhere
> between 5 and 25 volts DC at a few watts. IIRC Linksys ships the V4
> (and, I'm nearly certain, the V5) with a 12VDC, 1A supply, with center
> pin positive.
>
> Radio Shack will be able to help you.

What a variation.
I have 2 adapters - both are original Linksys Model D12-1A
12 v DC 1000 mA.
That is actually a fair amount of amperage for 1 little circuit board (
if the front of the Linksys Router falls off you will find 1 thin flat
circuit board inside the case).
Its not as if it is a laptop with a hard drive , cd Rom and a screen to
power.
I have often wondered if a router needs all that amperage of power.
If the amperage is more than is necessary will that hurt the device as
excessive voltage can or is it just excess capacity.
Simple 12 volt lower amperage adapters should be relatively easy to
find.
Wonder if it is a similar adapter in the BEFW1 Linksys b router as
those can be had relatively inexpensively ?
Are there any firmware hacks for the BEFW1 b router ?