I've been doing a bit of research on power and portable power for HSMM-MESH nodes and need to validate some information.

KD8RAP and I have identified that the outer diameter of the power plug is 5.5mm for our WRT54GS nodes. I'm finding a lot of inconsistent data out there regarding the inner diameter of the plug. I'm also not sure about the length of the barrel.

My intention is to replace the AC/DC power converter with a plug connected to power poles that then connects to whatever 12V source is local... batteries, power supply, etc.

So, I'm asking for anyone who has a WRT54G, WRT54GS or WRT54GL to measure their plugs and post the results here. Please also post your note model and version.

Thanks!

P.S. Yes, I know that the WRT54G V1 is 5V.

I thought I posted this, but it disappeared.

Unfortunately, the measured and "advertised" sizes often don't match.

"Type M 5.5x2.1mm" barrel connector seems to be the most common answer for what you order.

The plug on the Linksys power supply connector is actually 5mm OD, 2.2 ID measured.  I've got both 10 mm and 11 mm lengths.

The hole on the WRT is about 6 mm, but there's a spring loaded contact that has quite a bunch of give to it.

The Belkin UPS we use a lot of is 5.5 mm OD, 2.2 ID on the connector, 12 mm long.  They fit all the WRT54G* machines.  

You'll probably have to just get a part and try it to find out what "standard" it is.  Or wait for someone who's already ordered the part somewhere.

I've also seen it listed as "5.5x2.5" on the internet, but I think the 2.1 is closer to reality.

Even if this is "wrong," it might actually work for the jack due to the amount of play in the jack on the back of the WRT-54G.  The spring on the side might push the connector far enough off center to make contact on the center pin.