EBYTE NB144S 4-Channel Serial Server RS232/422/485 RJ45 Modbus Gateway TCP/UDP/MQTT DC 8-28V AT Command Build-in Watchdog 850.125~930.125MHz the built-in TCXO (Temperature Compensated

the built-in TCXO (Temperature Compensated Crystal Oscillator) keeps frequency drift under tight limits across wide temperature fluctuations

Low power standby current consumption: 302uA @ 12V

preventing data loss or communication timeouts that often plague standard consumer-grade wireless modems

The module PCB board is coated with special three-proof paint

5V DC (Typ

EBYTE NB144S 4-Channel Serial Server RS232/422/485 RJ45 Modbus Gateway TCP/UDP/MQTT DC 8-28V AT Command Build-in Watchdog 850.125~930.125MHz the built-in TCXO (Temperature CompensatedThe Ebyte NB144S industrial 4 channel serial server integrates RS232 RS422 RS485 multi serial interfaces and RJ45 Ethernet port, supports bidirectional transparent transmission, built in Modbus TCP RTU automatic conversion, TCP UDP MQTT HTTP multi network protocols, DC 8 28V wide power input, hardware watchdog, and 40 to +85 Celsius wide temperature range for multi serial industrial IoT networking. Parameter Item NB144S Product Model NB144S Serial