Comprehensive Product Summary: EX9212LoRa-MTCP – LoRa to Ethernet Modbus TCP Gateway

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### 1. Product Overview

Product Name: LoRa to Ethernet Modbus TCP Gateway
Model: EX9212LoRa-MTCP
Series: EX9212LoRa Series
Article Number: EX9212LoRa-MTCP
Manufacturer: TOPSCCC (TopSCCC Industrial Communication Solutions)
Edition/Manual Reference: EX9212LoRa Series User Manual, Version 1.1.0 (2019-09-19)

The EX9212LoRa-MTCP is an industrial-grade LoRa-to-Ethernet gateway designed to bridge long-range LoRa wireless networks with Ethernet-based Modbus TCP systems. It enables seamless integration of remote IoT nodes, sensors, and controllers into LAN or host computer environments using Modbus TCP/IP protocol. Built around a 32-bit MCU and Semtech SX1272 LoRa transceiver, the device provides reliable, low-power, long-distance communication for industrial automation, smart metering, and environmental monitoring applications.

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### 2. Key Features

- Dual Interface Conversion: Converts LoRa wireless communication to Ethernet Modbus TCP, enabling remote device connectivity over long distances.
- High-Performance MCU: 32-bit microcontroller operating at 40 MHz with 16 KB SRAM and 128 KB Flash ROM for stable and efficient data processing.
- LoRa Technology: Integrated Semtech SX1272 transceiver supporting ISM band 862–936 MHz with high receiver sensitivity (-137 dBm) and up to +20 dBm transmit power.
- Long-Range Communication: Supports transmission distances from 1.5 km up to 7.5 km in free-space conditions, depending on antenna and environmental factors.
- Flexible Network Modes: Operates as TCP Server, TCP Client, or UDP node; supports Modbus TCP to RTU/ASCII conversion.
- Industrial Ethernet Interface: 10/100 Mbps auto-detect RJ-45 port with built-in 1.5 kV magnetic isolation for electrical protection.
- Security and Encryption: Integrated AES encryption engine supporting 128/192/256-bit keys for secure data transmission.
- Low Power Consumption: Typical power draw of 95 mA at 12 VDC; supports wide input voltage range (9–24 VDC).
- Web-Based Configuration: Simple setup via HTTP browser (Internet Explorer) or Windows utility software.
- Robust Environmental Design: Operates in temperatures from -10°C to +70°C; suitable for industrial and outdoor deployments.
- Compact and Lightweight: Enclosed in a durable plastic housing measuring 100 × 90 × 25 mm and weighing approximately 150 g.

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### 3. Technical Specifications

Processor & Memory
- CPU: 32-bit MCU, 40 MHz
- Memory: 16 KB SRAM, 128 KB Flash ROM

LoRa Wireless Interface
- Chipset: Semtech SX1272
- Frequency Range: ISM band 862–936 MHz
- Receiver Sensitivity: -137 dBm
- Transmit Output Power: +20 dBm
- Sleep Current: 3 µA (power-down mode)
- TX Current: <140 mA @ 20 dBm
- RX Current: <10 mA
- Data Rate: 0.244–18.2 kbps (LoRa) / up to 300 kbps (FSK)
- Packet Engine: Up to 256 bytes with CRC
- Encryption: AES 128/192/256-bit
- Antenna: SMA type, 2 dBi, detachable and replaceable
- Communication Topology: Star network
- Transmission Distance: 1.5–7.5 km (free space)

Ethernet Interface
- Connector: RJ-45
- Speed: 10/100 Mbps (auto-detect)
- Supported Protocols: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP
- Operating Modes: TCP Server, TCP Client, UDP
- Configuration: HTTP browser setup (Internet Explorer)
- Security: Login password protection
- Electrical Isolation: Built-in 1.5 kV magnetic isolation
- Modbus Modes:
- Modbus TCP to RTU/ASCII Slave Mode
- Modbus RTU/ASCII to TCP Slave Mode

Power Requirements
- Input Voltage: 9–24 VDC
- Current Consumption:
- 150 mA @ 9 VDC
- 60 mA @ 24 VDC
- Typical: 95 mA @ 12 VDC
- Power Adapter (optional): 9–24 VDC, 500 mA

Indicators (LEDs)
- SYS (Green): System power indicator
- RX (Red): Data reception indicator
- TX (Green): Data transmission indicator

Physical Characteristics
- Dimensions: 100 × 90 × 25 mm (W × D × H)
- Weight: 150 g (excluding power supply)
- Enclosure: Industrial-grade plastic housing

Environmental Conditions
- Operating Temperature: -10°C to +70°C
- Storage Temperature: -20°C to +80°C

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### 4. Functionality

The EX9212LoRa-MTCP functions as a LoRa-to-Ethernet Modbus TCP gateway, enabling long-range wireless communication between remote LoRa nodes and Ethernet-based control systems. It acts as a bridge between field devices and supervisory systems, translating LoRa data packets into Modbus TCP frames for integration with SCADA, PLCs, or industrial PCs.

Use Cases and Applications:
- Smart Metering: Integration of water, gas, and electricity meters into centralized monitoring systems.
- Industrial Automation: Remote control and monitoring of sensors, actuators, and controllers in factories or plants.
- Environmental Monitoring: Collection of temperature, humidity, and air quality data from distributed sensors.
- Smart City Infrastructure: Management of street lighting, energy distribution, and public safety systems.
- Agriculture and Livestock Management: Long-range data collection for irrigation, soil moisture, and animal tracking.

Compatibility:
- Compatible with Modbus TCP/IP networks and Modbus RTU/ASCII devices.
- Works with LoRa-based remote nodes using the same frequency and encryption settings.
- Configurable via web browser or Windows-based utility software.

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### 5. Components & Accessories

Included Items:
- 1 × EX9212LoRa-MTCP Gateway Unit
- 1 × SMA Antenna (2 dBi, detachable)
- 1 × Power Adapter (9–24 VDC, 500 mA, optional)
- 1 × Documentation & Utility CD (includes drivers and configuration tools)

Optional Accessories:
- Replacement antennas with higher gain for extended range
- DIN-rail mounting brackets
- External power supply units
- Ethernet cables and surge protectors

Connectors:
- DC-IN Power Jack: 9–24 VDC input (inner positive, outer negative)
- Ethernet Port: RJ-45 connector for LAN connection
- Antenna Port: SMA female connector

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### 6. Installation & Setup

Power Connection:
Connect the supplied DC adapter (9–24 VDC) to the power inlet. The SYS LED will illuminate when power is correctly applied. Alternatively, a terminal block power input can be used.

Network Connection:
Connect the RJ-45 Ethernet port to a network switch or router. The LAN LED will light up upon successful link detection, and the TX/RX LEDs will blink during data transmission.

Configuration Steps:
1. IP Search Tool: Use the included “EXBrowser.EXE” utility to detect the device on the network (default IP: 192.168.0.100).
2. Web Configuration: Access the device via a web browser using its IP address. Login (no password by default) to configure network and Modbus parameters.
3. Parameter Setup: Adjust LoRa frequency, spreading factor, bandwidth, and encryption key using the Windows utility.
4. Reset Function: Press and hold the reset button for more than 5 seconds to restore factory defaults.

Mounting Options:
- Desktop or panel mounting
- Optional DIN-rail mounting kit available

Dip Switch Configuration:
- Setting Mode: All DIP switches (#1–#4) in the UP position
- Operation Mode: Only DIP switch #1 in the DOWN position

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### 7. Performance & Capabilities

Communication Range:
- Up to 7.5 km in open space (depending on antenna and environment)

Data Throughput:
- LoRa: 0.244–18.2 kbps
- FSK: Up to 300 kbps

Network Performance:
- Ethernet: 10/100 Mbps auto-negotiation
- Supports simultaneous Modbus TCP client/server connections

Power Efficiency:
- Low standby current (3 µA in sleep mode)
- Optimized for continuous operation in remote installations

Limitations:
- Line-of-sight recommended for maximum LoRa range
- Configuration requires Windows utility or Internet Explorer browser
- Limited to star topology (no mesh networking)

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### 8. Standards & Compliance

Communication Standards:
- IEEE 802.3 (Ethernet 10/100 Mbps)
- Modbus TCP/IP and Modbus RTU/ASCII
- LoRa modulation per Semtech SX1272 specifications

Electrical & Safety Compliance:
- Built-in 1.5 kV magnetic isolation on Ethernet port
- 3000 VDC isolation protection on digital I/O (for DIO models)
- Compliant with ISM band regulations (862–936 MHz)

Environmental & Industrial Standards:
- Designed for industrial temperature range (-10°C to +70°C)
- Suitable for use in automation, metering, and environmental monitoring systems

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### 9. Additional Information

Warranty & Support:
- Standard manufacturer warranty (duration varies by region)
- Technical support available via TOPSCCC website and authorized distributors
- Firmware and configuration utility updates provided through official channels

Maintenance:
- Periodic inspection of antenna and connectors recommended
- Ensure firmware and configuration tools are up to date
- Device reset and reconfiguration may be required after network changes

Software Tools:
- EXBrowser.EXE: IP search and configuration utility
- LoRa Setting Tool: Windows-based utility for LoRa parameter configuration
- Web Interface: Browser-based configuration (HTTP)

Firmware Updates:
- Available through manufacturer’s support portal
- Update via web interface or USB utility

Documentation:
- EX9212LoRa Series User Manual (Edition 201909v1.1)
- Includes wiring diagrams, Modbus command references, and setup procedures

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### Summary

The EX9212LoRa-MTCP is a robust, industrial-grade gateway that bridges LoRa wireless networks with Ethernet-based Modbus TCP systems. It combines the long-range, low-power benefits of LoRa technology with the reliability and speed of Ethernet communication. Featuring a 32-bit MCU, AES encryption, and flexible configuration options, it is ideal for applications requiring secure, long-distance data transmission in industrial, agricultural, and smart city environments. Its compact design, wide power range, and simple setup make it a versatile solution for integrating remote IoT devices into modern network infrastructures.