Cheap Link Light Tester
Posted on 2005-03-18
I work for a desktop support group at a good sized company. My responsibilities involving networks really end at the wall port, but I do have to test for link. A lot of times for conference rooms or new hires who don't yet have a machine, I end up either have to bring a laptop or a hub with me just to check for link. I am thinking about getting a really cheap hub that runs off 9v DC and hacking in some batteries, but I was wondering if there is a more elegant solution. What I would really like is something about the size of a USB flash drive that I can just plug into a RJ45 port and check for link. From what I remember link light is just a check of power on pins 3 and 6 so this has to be well within the realm of possibility.
I know I can get a real tester, but those cost $150+ and do way more then I am looking for. I am also not looking for a cable tester. Ideally something in the $30-40 range would be nice since I can get a hub for half that.
Anyone know of such a device?