This includes Device Servers which converts a LAN port to one or more RS485 (2-wire) virtual serial ports.

CONVERTER-WS-LAN2-RS485-POE
Waveshare Din Rail RS485 to RJ45 Serial Server with POE Function
740.00 740.0 ZAR Excl. VAT
TDS-725
LAN POE to 2xRS485
2,445.00 2445.0 ZAR Excl. VAT
TDS-735
LAN POE to 3x RS485
2,595.00 2595.0 ZAR Excl. VAT
TDS-735i
Tiny (3x Isolated RS-485) Serial-to-Ethernet Device Server with PoE
2,925.00 2925.0 ZAR Excl. VAT