The Olson Model OTOLS-85-0.5 1.25Gb 850nm Multimode Small Form Pluggable (SFP) Fiber Optic Transceiver is one module option available for the Model OTDV-1250 VAD+E Transport Link as well as a number of Olson fiber optic Ethernet transport products. The module is compatible with gigabit Ethernet and 1000BASE-SX. The SFP module may be swapped in the field. The link incorporates an 850nm VCSEL laser transmitter and an integrated GaAs detector preamplifier (IDP). The transceiver can operate up to 550m over 50/125nm multimode fiber or 300m over 62.5/125nm multimode fiber. These SFP modules do not include DMM monitoring.