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Comment by Calcite | Hacker News Reader

What's RJ47? Wouldn't cheap cell phones with 3G and WiFi hotspot negate the need for another device to carry?

It looks like RJ47 is an analogue connection using an RJ45 connector. Not much info on it out there, but I expect this describes its wiring: http://www.talkaudio.co.uk/ipb/index.php/topic/102601-rj47-w...

RJ47 is ethernet.

More specifically, its the 'connector' piece of the cable, not really the ethernet. It stands for Registered Jack-47 and is more or less a standardization for 'connectors' or jacks.

If there is such a thing as Registered Jack 47, it's gotta be the most obscure engineering standard on the planet.

Based on the context, I'm not sure they even meant to say RJ45, since they mention Ethernet over USB elsewhere in the blurb.

edit: They explicitly say 10/100 RJ45 port later, so it's probably just a typo.

Yeah, super obscure. It does exist but rarely mentioned.

http://www.discount-low-voltage.com/Connectivity/Shielded-Pl...

Incontrovertible evidence. Thanks!

When did it go up two points? Last time I checked it was RJ45.

I guess more people value the internet now so naturally RJ is going to rise. ;)

edit: Oh. http://answers.yahoo.com/question/index?qid=20070313080701AA...

The selected Yahoo Answer is wrong. RJ11 is for phones, RJ45 ethernet, and RJ47 is either a typo or a part number or something.

No it's not. RJ45 is what you're thinking of.

We meant RJ45, typo being fixed.

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