4G Serial Gateway

DTU、Serial Gateway、、、、、

Y212-G Industrial 4G LTE Serial Gateway

Model: Y212-G

Key Features

  • Global multi-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

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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

  • Global multi-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/B2/B3/B4/B5/B7/B8/B12/B13/B17/B20/B25/B26/B28; LTE-TDD B34/B38/B39/B40/B41; WCDMA B1/B2/B5/B8; CDMA2000 BC0; GSM EGSM900/DCS1800/PCS1900
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

Documentation & Support