Can a GLC-ZX-SM SFP (1000BaseZX) push over 1310 nm SM fiber?

I have a couple of stretches of 1310 nm SM fiber that are over 40 KM (about 47.5 KM). Can I use a GLC-ZX-SM to push over that 1310 fiber? The Cisco tech docs indicate the GLC-ZX-SM is for 1550 nm fiber
Jeff

"Can I use a GLC-ZX-SM to push over that 1310 fiber"
I dont think there are any fiber which only works for 1300nm or 1550nm.
As per my knowledge ALL Single mode fiber are good for 1300nm & 1550nm wavelength.
There are few things which are different for 1300nmher and something else for 1550nm.
Like i am taking spec of one of the fiber,
Loss at 1300nm for above fiber is 0.40nm dB/Km where as if you send 1550nm through the same loss is 0.25dB/Km.
Similarly dispersion is different when you send 1300nm Vs 1550nm through the same fiber.
So if you are using 1300nm through that fiber till now you can connect 1550nm through it without any problem.
Only thing you should be considered is the age of the fiber and the loss. As with change is technology manufacturer are able to reduce the loss through fiber at a particular wavelngth.

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