Tom, Yup. Same as trying to stare at an Eclipse but a bit worse. But would the camera transfer the intensity of the laser as if you put a mirror there? I guess I could turn out the lights in the NOC, pull the fiber cable and point it toward a piece of paper up close to see if it shows anything. In any event I see what has to be done. You could call it an Ah Hah moment or a Duh! moment but it makes sense. No light in the room and at least the end of the connector should show some light against a surface.
>>> Tom Perrine <[email protected]> 11/29/2010 4:26 PM >>> On Mon, Nov 29, 2010 at 1:19 PM, Dan Parsons <[email protected]> wrote: > Another test you can do is connect one end of the fiber cable to the > switch and look at the other end of the cable through the electronic > viewfinder of a digital camera. They can usually see the light coming > through, which is at a wavelength the human eye can't detect. It > usually looks like a bright white light. This works very well for 1Gb > fiber connections - I haven't had luck with this at 10Gb for a reason > I've yet to determine. Some digital cameras block this wavelength but > none of my iPhones or blackberries ever have. But don't stare into the fiber. That's a laser, not just a light. Low power unless you're using long distance GBICs, but still a laser. Shine the output of the fiber onto something else, like paper, then view as above. _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
