Hello Les: > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:cisco-nsp- > [EMAIL PROTECTED] On Behalf Of les > Sent: Friday, May 30, 2008 11:18 AM > To: [email protected] > Subject: [c-nsp] Single-mode GBIC question > > I've combed the web with no luck to the answer of my simple question.... > > If you use SINGLE-MODE fiber and gbics for very short runs (same room, > across the street), can you damage the GBICS? > > What has been your experience. Oversaturation? Life-shortening? We > typically use SM towards the telco and MM for internal but have ran > into some legacy fiber where it's SM internal. I have electronic > background so terminology is familiar. > > thanks in advance > -les
It depends. :-) If your using LX/LH optics you should be fine. Here's a good breakdown of TX/RX parameters on the various Cisco optics. On an LX/LH optics, your TX is -3 to -9.5 and your receive is -3 to -20, so even back to back at -3 to -3 you would be okay. http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product _data_sheet0900aecd8033f885.html Regards, Mike _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
