1.TCP, UDP network protocol; 2. Serial port-RJ45 converter 3. Suit for LAN, VPN etc 4. Interface: ... interface upwards, and supply one standard RS232 (or RS485) COM port. It have 16K buffer, its parameters can be set with ... ~+85°C Relative humidity: 20~95% non-condensing KB2001 Serial port-RJ45 conerter network converter,Suit for LAN, VPN etc