On 01/26/12 16:33, Pierre-Yves Maunier wrote:
LX can work on both.
It can happends that SX works on singlemode but it can fail anytime.
LX over multimode fibre is documented on Cisco SFP/GBICs datasheets.
http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml
Cisco 1000BASE-LX/LH SFPGLC-LH-SM1SFP-GE-L2Operates on standard single-mode
fiber-optic link spans of up to 10 km and up to 550 m on any multimode
fibers.
just because you can doesn't mean you should.
we have experience multiple cases where LX-MMF-LX works great for 3-5+ years...
then one day no longer gets link. swapping to a different fiber pair restores
link.
can't remember SX-MMF-SX failing after years of service.
--
Steven Tardy
Systems Analyst
Information Technology Infrastructure
Information Technology Services
Mississippi State University
s...@its.msstate.edu
