SCALANCE X accessory, Plug-in transceiver SFP991-1SFP991-1LH+ 1x 100 Mbit/s LC port, optical; single-mode optical up to max. 70 km
SCALANCE X accessory, Plug-in transceiver SFP991-1SFP991-1LH+ 1x 100 Mbit/s LC port, optical; single-mode optical up to max. 70 km