Industrial Ethernet switches that are not managed:
Industrial 5-, 8-, and 16-port Ethernet switches from the DVS series support IEEE 802.3/802.3u/802.3x and provide 10/100M, full/half-duplex, auto-sensing RJ45 ports for MDI/MDIX.
Particularly made for industrial settings that are demanding and dangerous.
Ethernet switches in the fibre series.
One 100Base-FX fibre optic port (SC connection) 30 kilometres in single mode.