Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Guitar Hero: 4'33"

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.



3G data cards with RJ45 connectors

3G cards primarily have USB connectors, replace them with RJ45
  (+3, -2)
(+3, -2)
  [vote for,

3G USB devices require drivers, and can be OS specific. 3G cards often contain their own drivers and utilities but often require specific OS support.

I think its fair to assume if youre using a a 3G USB card, your network port is not being used. A 3G NIC card with an RJ45 connector frees up the USB port. If set up properly, it could have a simple DHCP server, router, built in. Management of it could be via an embedded webserver. It would appear to the computer as an IP router, rather than a modem. It would therefore be platform agnostic.

I would suspect CPU usage would be lower, as its not on the USB bus, maybe incorporating a TCP/IP offload engine could help. I have no idea of the electronics involved but looking at a modern NIC there doesnt seem to be much too it.

(edit - power.. i forgot power. Could/do a laptop incorporate POE ports? Is the tradeoff the reason why USB is used?)

dja, Jan 08 2009

CradlePoint CTR-500 Mobile Broadband Router http://cradlepoint....le-broadband-router
Also does WiFi, and they have other models too. [krelnik, Jan 08 2009]


       Somewhat baked by CradlePoint's products, though they don't actually provide the 3G part themselves. You plug Ethernet into one side, a 3G modem into the other and boom. See link.
krelnik, Jan 08 2009

       One could instead easy-bake the same thing themselves with an old laptop, for a whole lot less.
Spacecoyote, Jan 08 2009

       A good idea, but in my opinion could be a little bit more sophisticated...Instead of RJ45, why not add 802.11 (WIFI) to those 3G cards?
alexandre, Jan 10 2009


back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle