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 Subject :Newbie.. 2013-11-26- 12:02:44 
k2vjk
Member
Joined: 2013-11-25- 10:55:46
Posts: 15
Location: 

Just getting started in HSMM-MESH.Have a Linksys WRT54GS Ver 2 already reflashed into a MESH node. Will be getting another shortly so that I can put up another node and experiment with my MESH. Here's a couple questions I need answered. 1) The Linksys router needs 12VDC at 1 amp for power. If I run this from my Ham Radio power supply (13.6VDC), or a battery (also over 12VDC), will it smoke the router? I instend to run the one in my shack off the power supply, and the other node will be a remote with battery power. When I get the MESH up and running, I'm sure I will have more questions. 73 and thanks.
 
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 Subject :Re:Newbie.. 2013-11-28- 04:43:12 
kg7for
Member
Joined: 2013-11-20- 10:14:27
Posts: 6
Location: Washington
 
There are a few cigarette lighter power adapters that *say* they work with the routers, but the fine print indicates 12 Volt DC and 2 Amps. The ebayer selling these actually also sells Linksys repeaters that have been reconfigured. I'm no electrician so I'm not sure if these can be used safely when the regular power adapter indicates 1 Amp. Anyone?
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 Subject :Re:Newbie.. 2013-11-29- 08:04:59 
KG1L
Member
Joined: 2013-06-28- 12:53:53
Posts: 18
Location: Owings, MD
The WRT54G v1 needs a 5 volt power supply. The following applies to rest of the 54G versions, and all versions of the 54GS and 54GL (essentially rebranded 54G). The routers operate internally at 3.3V and have an internal DC-DC converter to drop the voltage down to 3.3V. This means that any DC voltage between about 5V and about 20V (the input capacitor voltage rating is 25V) will work. The current must be sufficient to provide the 6W or so that the router needs. A 6V power supply would need to provide at least 1A. A 12V power supply could supply half as much current. I found this documentation at http://kioan.users.uth.gr/wireless/wrt54g/supply.html. From personal experience, I have two nodes currently set up next to each other. When I bought them, they did not have power supplies. I have a "universal" power supply that has a 12V setting, but only provides 800 mA. It worked fine. For the other node, I tried a 6V, 1A power supply. It worked, but the node would crash within a few hours. I purchased on ebay, what was advertised as power supplies for the WRT54G, GS and GL. I bought two. They turned out to be 12v, 600 mA. I was about to start the process of sending them back, when I decided to try them. Both of my nodes have been running continuously, without any problem for several weeks.
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 Subject :Re:Newbie.. 2013-11-29- 09:35:23 
kg7for
Member
Joined: 2013-11-20- 10:14:27
Posts: 6
Location: Washington
 

KG1L are you saying that 12V 2Amp cigarette lighter will work? 

Like this one?

Linksys WRT54G WRT54GS WRT54G-TM WRT54GL WRT160N REPEATER 12V CAR ADAPTER!

http://r.ebay.com/h8wi88
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Last Edited On: 2013-11-29- 09:38:27 By kg7for for the Reason
http://qsl.net/kg7for
 Subject :Re:Newbie.. 2013-12-03- 11:42:45 
KG1L
Member
Joined: 2013-06-28- 12:53:53
Posts: 18
Location: Owings, MD

Yes, that will work. The router will only draw as much current as it needs. 2A is overkill, but it won't hurt anything. Standard ebay disclaimers apply. I would be comfortable buying it, since it specifically says it works with the Linksys routers, and the seller has a 100% rating. (126 transactions in the last year, all feedback was positive.)
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Last Edited On: 2013-12-03- 11:47:18 By KG1L for the Reason Typo
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