On Fri, 13 Mar 2009, Ray Burkholder wrote:
I have a carrier which has about 13km to 15km of fibre to their CO. They
run 1310 nm alcatel equipment on their end. I was wanting to use a Cisco
GLC-LH-SM on my end but that is rated for 10km. The GLC-ZX-SM is 1550 nm
70km device which is incompatible.
Why is the ZX incompatible?
"All" 1310nm optics have wideband receivers so getting the ZX into the LX
at the other end is not a problem (apart from that you might want to
attenuate it 5-10dB at the ZX launch end), and the ZX has -24dB receiver
sensitivity meaning you gain there as well.
This works. Been there done, that plenty of times.
--
Mikael Abrahamsson email: [email protected]
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