TD301M485

The TD301M485 is a Modbus RTU to Modbus TCP converter, facilitating communication between Modbus RTU devices (RS-485) and Modbus TCP networks. It acts as a gateway, enabling seamless integration of serial Modbus devices into Ethernet-based systems.
Key Features:
- Supports Modbus RTU (RS-485) to Modbus TCP protocol conversion.
- Compact design with DIN-rail mounting for industrial use.
- Configurable via web interface or software for IP, baud rate, and slave ID settings.
- Supports transparent transmission and Modbus gateway modes.
Applications:
- Industrial automation, SCADA systems, and remote monitoring.
- Connects legacy serial devices to modern Ethernet networks.
Benefits:
- Simplifies network integration without hardware changes.
- Enhances communication range and flexibility.
For setup, configure network parameters and Modbus settings to bridge serial and TCP devices efficiently.

The TD301M485 is a 3.3V/5V RS-485 transceiver. Equivalent products include:
- MAX485 (Maxim Integrated)
- SN65HVD72 (Texas Instruments)
- SP3485 (Exar/Sipex)
- ADM485 (Analog Devices)
- LTC2855 (Linear Technology)
These chips offer similar functionality (half-duplex RS-485 communication) and are compatible replacements. Verify voltage levels and pinouts for your specific application.

The TD301M485 is a compact, DIN-rail-mounted RS-485 to 4G LTE cellular gateway designed for industrial IoT applications. Key features include:
- 4G LTE Connectivity: Supports global LTE bands for reliable wireless communication.
- RS-485 Interface: Enables serial device integration (Modbus RTU/ASCII).
- Industrial-Grade Design: Operates in harsh environments (-40°C to 75°C) with high EMI immunity.
- Cloud & Protocol Support: Compatible with MQTT, TCP/IP, and HTTP for cloud integration.
- Easy Configuration: Web-based setup and AT command support.
- Low Power Consumption: Optimized for energy efficiency.
- Secure Communication: Supports VPN, SSL/TLS encryption, and firewall protection.
Ideal for remote monitoring, SCADA, and smart grid applications.

The TD301M485 is a 3.3V/5V RS485 transceiver with 16 pins (TSSOP-16 package). Key functions include:
- Differential Data (A/B): Pins for RS485 communication (A: non-inverting, B: inverting).
- Driver Enable (DE) & Receiver Enable (RE): Control data direction (active high/low).
- RO (Receiver Output): Outputs received data to the host.
- DI (Driver Input): Accepts data from the host for transmission.
- VCC (3.3V/5V) & GND: Power supply pins.
- Fail-Safe Biasing (R0~R3): Optional resistors for bus bias.
It supports half/full-duplex modes and features ESD protection (±15kV).

The TD301M485 is a 4G DTU (Data Transfer Unit) with RS485 interface, widely used in:
1. Industrial IoT – Remote monitoring and control of equipment.
2. Smart Agriculture – Environmental data collection (soil, weather).
3. Smart Metering – Remote reading of water, electricity, and gas meters.
4. Smart Cities – Streetlight control, traffic monitoring.
5. Energy Management – Solar/wind power monitoring.
6. Environmental Monitoring – Air/water quality tracking.
It enables wireless data transmission over 4G networks, supporting Modbus RTU/TCP for seamless integration with industrial systems.

The TD301M485 is a Modbus RTU to Modbus TCP converter. It typically comes in a compact DIN-rail mountable enclosure, suitable for industrial environments. The package includes the converter unit, necessary connectors, and may include mounting accessories. It supports RS-485 communication and Ethernet connectivity, enabling seamless integration between serial and network Modbus systems. Check the manufacturer's specs for exact package contents.