Y212-G 4G LTE Cat.4 Serial Gateway with I/O

4G Serial Gateway

Y212-G connects RS232/RS485 devices to 4G LTE Cat.4 networks, with a secondary TTL UART, two digital I/O and one 0–8 V analog input for field monitoring.

  • 4G LTE
  • RS485
  • RS232
  • MQTT
  • HTTP/HTTPS
  • Industrial IoT

Key Features

01

Qualcomm LTE Cat.4 cellular connection with 2G/3G fallback where those services remain available

02

RS232/RS485 main serial interface up to 921,600 bps, plus a 3.3 V/5 V TTL secondary UART on current hardware

03

Two configurable digital I/O and one 0–8 V analog input; 0–6 V is recommended for best analog linearity

04

6–28 VDC supply, remote configuration and OTA upgrades, with panel or 35 mm DIN-rail mounting

Specifications

Cellular

Module
Qualcomm LTE Cat.4 with 2G / 3G fallback where available
Bands
LTE-FDD B1/B3/B5/B8; LTE-TDD B34/B38/B39/B40/B41; WCDMA B1/B8; CDMA2000 BC0; TD-SCDMA B34/B39; GSM EGSM900/DCS1800
Sim
Drawer-style 1.8V / 3V SIM or USIM
Antenna
50 ohm SMA female

Network Protocols

Protocols
TCP, UDP, HTTP, HTTPS, MQTT, MQTTS, WebSocket
Operation Modes
Always-online, on-demand, scheduled, wake-up

Serial Interfaces

Main Port
RS232 + RS485
Baud Rate
1,200~921,600 bps (default 9,600-8-N-1)
Secondary Uart
TTL 3.3 V / 5 V, available on current Qualcomm-based hardware

I/O And Analog

Gpio
2 configurable IO, input or output
Analog Input
1 channel, 0~8V (0~6V recommended for best linearity)

Power Supply

Voltage
DC 6–28 V
Recommended Adapter
>=2A
Typical Consumption
20~40 mA @ 12V idle, 60~100 mA @ 12V transmission

Environmental

Operating Temperature
-40°C ~ +85°C
Storage Temperature
-45°C ~ +90°C
Humidity
5% ~ 95% RH, non-condensing
Reliability
MTBF > 200,000 h

Mechanical

Dimensions
80 × 63.8 × 21.3 mm
Weight
≈180 g
Mounting
35 mm DIN rail or panel mounting
Protection
IP20

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