Serial to Power Over Ethernet (PoE) Cable - NetDirect PoE - DCE (female) – Grid Connect
RS232 over Ethernet - TC Communications
1 Port Serial to Ethernet Converter - Serial Over IP Cat5/6 Extenders | StarTech.com
RS232 over Ethernet - TC Communications
DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE
Eight RS232 Ports, One Ethernet Port | Hackaday
Homepage - | Mbed
Connecting a Serial Device to an Ethernet LAN : 8 Steps - Instructables
Amazon.com: StarTech.com 1 Port RS232 Serial Ethernet Device Server - PoE Power Over Ethernet - Serial Over IP Device Server Adapter - PoE-Powered (NETRS2321POE) : Electronics
4-Port Industrial RS-232 to Ethernet Data Gateway TCP/IP - Coolgear