HF2211 Serial Server RS232/485/422 to WIFI & Ethernet DTU Network Communication 5-36VDC Features Using MIPS MCU (8MB for SRAM) and 4MB Flash, based on eCos operating system. Passed FCC_CE_RoHS_SRRC_REACH certification. Support RS232 / RS422 / RS485 to Wi-Fi / Ethernet data transmission, the maximum serial port speed is 230400 bps. Support for TCP / for IP / for Telnet / for Modbus TCP protocol. Support wireless working STA / AP / AP + STA. Support routing / bridge mode network architecture. Support webpage mode, PC software easy configuration. Support data for TLS / for AES / for DES3 security encryption configuration. Support web OTA wireless upgrade. Specification Item Type: HF-2211 Serial Port Server Model: HF-2211 Input Voltage: Wide voltage 5 36VDC Size: Approx. 95 x 65 x 25mm / 3.7 x 2.6 x 1in Working Temperature: -45-85 Interface Form: 5.5 x 2.1mm socket and 5.08mm terminal block Working Current: 200mA Power Consumption: