Optech offers 155Mbps SFP with Coarse Wavelength Division Multiplexing (CWDM) is the technique of combining several optical channels onto a single fiber. CWDM systems typically provide 16 wavelengths and use the ITU standard 20nm spacing from 1270nm to 1610nm.CWDM is a cost-effective solution for networks requiring fairly high bit rates, at minimal cost. This mainly suits short-haul metropolitan environments that have growing bandwidth requirements but do not have a substantial population to share the cost of the network. Features * SFP Multi-Source Agreement compliant * Compliant with SONET/SDH Standard * Compliant with Fast Ethernet standard * Industry standard small form pluggable (SFP) package * Duplex LC connector * Differential LVPECL inputs and outputs * Single power supply 3.3V * TTL signal detect indicator * Hot Pluggable * Class 1 laser product complies with EN 60825-1 * RoHS Compliant