4G Serial Gateway

DTU, Serial Gateway, , , , ,
Y212-G Industrial 4G LTE Serial Gateway device

Y212-G Industrial 4G LTE Serial Gateway

Model: Y212-G

Key Features

  • 7-mode/15-band 4G access with fallback support and industrial watchdog protection

  • Dual serial interfaces (RS232 + RS485) with optional secondary TTL UART

  • Supports TCP, UDP, HTTP, HTTPS, MQTT, MQTTS, and WebSocket transparent transmission

Overview

Industrial 4G LTE serial gateway with RS232 and RS485 access, designed for transparent protocol forwarding, remote maintenance, and cloud connectivity in distributed IoT deployments.

Key Features

  • 7-mode/15-band 4G access with fallback support and industrial watchdog protection

  • Dual serial interfaces (RS232 + RS485) with optional secondary TTL UART

  • Supports TCP, UDP, HTTP, HTTPS, MQTT, MQTTS, and WebSocket transparent transmission

  • Includes 2 configurable GPIO and 1 analog input for local monitoring and control

Specifications

CellularModuleQualcomm LTE Cat.4 (Cat.1 compatible)
BandsLTE-FDD B1/B3/B5/B8; LTE-TDD B34/B38/B39/B40/B41; WCDMA B1/B8; CDMA2000 BC0; GSM EGSM900/DCS1800
SimDrawer-style 1.8V / 3V SIM or USIM
Antenna50 ohm SMA female
Network ProtocolsProtocolsTCP, UDP, HTTP, HTTPS, MQTT, MQTTS, WebSocket
Operation ModesAlways-online, on-demand, scheduled, wake-up
Serial InterfacesMain PortRS232 + RS485
Baud Rate1,200~921,600 bps (default 9,600-8-N-1)
Secondary UartTTL 3.3V / 5V on some revisions
Io And AnalogGpio2 configurable IO, input or output
Analog Input1 channel, 0~8V (0~6V recommended for best linearity)
Power SupplyVoltageDC 5~28V standard, DC 6~65V wide-range option
Recommended Adapter>=2A
Typical Consumption20~40 mA @ 12V idle, 60~100 mA @ 12V transmission
EnvironmentalOperating Temperature-40°C ~ +85°C
Storage Temperature-45°C ~ +90°C
Humidity5% ~ 95% RH, non-condensing
ReliabilityMTBF > 200,000 h
MechanicalDimensions80 × 63.8 × 21.3 mm
Weight≈180 g
Mounting35 mm DIN rail or panel mounting
ProtectionIP20

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