The ComNet CNFE2MCPOE[/M] Ethernet media converter is designed to transmit and receive 10/100Mbps data over optical fiber through user selectable SFP (Small Form-Factor Pluggable Module; sold separately) modules. These models require the ordering of sold-separately interchangeable SFP modules for fiber type, distance and connectors. The CNFE2MCPOE[/M] transmits and receives a single channel of Ethernet data. It also supports IEEE 802.3at as Power Sourcing Equipment (PSE) with up to 30W at 48 VDC (not supported when installed in ComNet Rack). The electrical interface will Auto-Negotiate to a 10Mbps, or 100Mbps Ethernet rate without any adjustments. The optical interface operates at a 100Mbps Ethernet rate. It is environmentally hardened to operate in extreme conditions.