6GK5991-1AD00-8AA0 Siemens SCALANCE X® Compatible Transceiver SFP 100Base-LX (1310nm, MMF, 5km, LC, DOM, Ind Temp)6GK5991 1AD00 8AA0 Siemens SCALANCE X Compatible Transceiver SFP 100Base LX (1310nm, MMF, 5km, LC, DOM, Ind Temp) ATGBICS Siemens SCALANCE X compatible 6GK5991 1AD00 8AA0 SFP 100Base LX form factor network transceiver supports a distance of up to 5km over multi mode fibre (MMF) using a wavelength of 1310nm via an LC Duplex connector. This product operates within an industrial temperature range. Digital optical monitoring (DOM) support is also present