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Y201-G Mini 4G DTU Specification
Reference: Y201-G Technical ManualCountry Coverage: Country Coverage Quick Guide
Contents
- Overview
- Ordering Information
- Key Features
- Technical Specifications
- Interfaces and Indicators
- Mechanical and Installation
1. Overview
Y201-G is the 4G Cat.1 model in the Y201 mini DTU family. It bridges serial devices to cellular networks and supports nationwide 4G connectivity, wide-range power input, and four transparent Socket channels. The device supports TCP, UDP, HTTP, MQTT, peer-to-peer transmission, SMS transparent transmission, and Modbus polling with JSON reporting.
| Item | Description |
|---|---|
| Positioning | Industrial 4G Cat.1 serial DTU |
| Power Input | 9 to 36 VDC wide-range input |
| Serial Interface | RS232 / RS485 / TTL, depending on model |
| Cellular Network | LTE Cat.1 |
| Socket Channels | 4 channels per serial port: A / B / C / D |
| Configuration | Config tool, serial AT, network AT, SMS AT |
Highlights
- Compact housing for easy integration into control cabinets and edge devices
- Four concurrent Socket channels for multi-platform data access
- SMS transparent transmission, transparent AT, and offline cache for weak-network scenarios
- Hardware and software watchdogs with self-recovery logic
- Modbus active polling and JSON reporting to reduce platform-side parsing work
2. Ordering Information
2.1 Model Configuration
Y201-G is a mini DTU with a 4G Cat.1 uplink. Serial interface type is selected separately and is not appended to the model number.
For family codes and examples, see Model Groups and Suffixes.
2.2 Configuration
| Model | Serial Interface |
|---|---|
| Y201-G | RS485 |
| Y201-G | RS232 |
| Y201-G | TTL |
2.3 Standard Package
1 x Y201-G device, electronic documentation, warranty information.
Optional accessories: 4G antenna, power adapter, serial cable harness, mounting accessories.
3. Key Features
- Nationwide 4G Cat.1: Supports mainstream FDD and TDD bands for industrial cellular deployments.
- Wide Voltage and High Reliability:
9 to 36 VDCinput with reverse-polarity protection and Level 4 ESD protection. - Flexible Serial Options: Supports RS232, RS485, and TTL with configurable serial parameters.
- Multi-Protocol Transparent Transmission: Supports TCP, UDP, HTTP, MQTT, peer-to-peer transmission, and SMS transparent transmission.
- Four-Socket Architecture: A single serial port can run channels A, B, C, and D in parallel.
- Enhanced Data Handling: Supports registration packets, heartbeat packets, offline cache, and data format conversion.
- Smart Data Collection: Supports active Modbus polling and JSON reporting.
- Remote O&M Ready: Supports local upgrade, HTTP upgrade, remote AT, and remote device management.
4. Technical Specifications
4.1 Electrical and Environmental
| Parameter | Specification |
|---|---|
| Dimensions | 74.6 x 22.6 x 18.1 mm, excluding tabs, antenna connector, and terminal |
| Operating Temperature | -35 to 75 C, standard version |
| Extended Temperature | -40 to 85 C, extended version |
| Operating Humidity | 5 to 95% RH, non-condensing |
| Power Connector | 5-pin, 2.54 mm pluggable terminal |
| Supply Voltage | 9 to 36 VDC |
| Current Consumption | 100 mA @ 12 V |
4.2 RF Specifications
| Parameter | Specification |
|---|---|
| LTE-FDD | B1 / B3 / B5 / B8, uplink/downlink 5/10 Mbps |
| LTE-TDD | B34 / B38 / B39 / B40 / B41, uplink/downlink 2/8 Mbps |
| TX Power, FDD | Class 3, 23 dBm +/-2 dB |
| TX Power, TDD | Class 3, 23 dBm +1/-3 dB |
4.3 Serial Specifications
| Parameter | Specification |
|---|---|
| Interface Type | RS232, 3-pin / RS485, 2-pin / TTL, 3-pin |
| Baud Rate | 1200 to 460800 bps, default 9600 |
| Parity | NONE / ODD / EVEN |
| Data Bits | 8 |
| Stop Bits | 1 / 2 |
| Flow Control | NFC / 485 |
4.4 Protocol and Software Functions
| Item | Specification |
|---|---|
| Network Protocols | DNS / TCP / UDP / PING |
| Transparent Transmission | TCP Client / UDP Client / HTTP / MQTT / Peer-to-peer / SMS |
| Socket Capability | Socket A / B / C / D per serial port, A enabled by default |
| Packetization | Length 64 to 1024, default 1024; interval 1 to 300 ms, default 5 ms |
| Registration / Heartbeat | Independently configurable per serial port, disabled by default |
| Upgrade Method | Local USB upgrade and HTTP upgrade |
5. Interfaces and Indicators
5.1 Main Interfaces
| Interface | Description |
|---|---|
| Power Terminal | 5-pin, 2.54 mm terminal for wide-range DC input |
| Serial Terminal | RS232 / RS485 / TTL, depending on model |
| SIM Slot | Cellular access |
| Antenna Connector | 4G antenna connection |
| USB | Micro USB for upgrade and maintenance |
5.2 LEDs and Button
| Item | Meaning |
|---|---|
| Power | Steady on when powered |
| WORK | Fast blink: not registered; slow blink: registered to base station |
| DATA | Off: server disconnected; on: connected; blinking: serial data activity |
| Reload Button | Press and hold for 3 to 10 s to restore default parameters |
6. Mechanical and Installation
| Item | Description |
|---|---|
| Dimensions | 74.6 x 22.6 x 18.1 mm |
| Mounting | Bracket or DIN-rail mounting, depending on project accessories |
Installation recommendations:
- Keep the antenna away from strong interference sources and high-current cables.
- Add fuse and surge protection on the power side.
- For RS485 wiring, use shielded twisted pair and proper grounding.
- Manufacturer: Hunan YenGear Tech Co., Ltd.
- Address: Room 21014, Building 1, Fudi Xingguang Tiandi, Yingxin Road, Yuhua District, Changsha, Hunan, China
- Email: hi@yengear.com
- Website: www.yengear.com