https://www.perle.com/Serial-Ethernet
赞助Transmit RS232, RS422, or RS485 data over wired or wireless (LTE or WiFi) Ethernet. Network access to attached devices as if you are locally connected to the serial port.
Advanced AAA Security · Easy Configuration · DB9, RJ45, DB25 Connector
Types: 1 port / 2 port / 4 port, High port count, RS232 only, RS232 / RS422 / R…