I have a Cisco Switch ME-3600X-24FS-M (for main site)  and I would like to conect it, trough a fiber optic single strand fiber link (20 Kms, more on less), with a cheaper transceiver (on the client side), that transceiver works TX1550RX1310.

My questions:
1.- Do you have a module 100% compatible with our ME-3600X-24FS-M switch?
2.- That module can works with any transceiver BiDi 1550nm-TX/1310nm-RX ?
3.- Please calculate estimated date of arrival to La Paz, for 80 SFP units.
4.- Can you offer warranty for your modules?, please explain that.

Please feel free to offer another SFP option, capable to work as we need.

I am wating your answer anxiously.