EtherWAN Gigabit SFP Fiber Transceiver Module is the pluggable optic that decides how far a fiber link reaches and on what glass. Each part number in this family is a distinct optic: the reach, the fiber type and the transmit and receive wavelengths are fixed by the module, not by the switch.
This page carries the 38 orderable part numbers in the family; pick the one you need from the selector and the price and SKU follow it. The models differ by reach, fiber type and connector. Specifications above are taken from the EtherWAN datasheet for this family.
Form Factor
SFP, compliant with the SFP Multi-Sourcing Agreement (MSA)
Speed Class
Gigabit Ethernet
Supply Voltage
Single +3.3V
Eye Safety
Class 1 laser safety, EN 60825-1
Environmental
RoHS compliant, lead-free
Operating Temperature
Hardened: -40 to 85 deg C; Non-Hardened: 0 to 70 deg C