Comprehensive Product Summary – ORing IMG‑4312‑MN Industrial IoT LTE LPWAN Gateway

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### 1. Product Overview

Product Name: IMG‑4312‑MN
Model: IMG‑4312‑MN (also available as IMG‑4312+‑MN with PoE P.D. support)
Series: IMG‑4312 LPWAN Series
Article Number: IMG‑4312‑MN
Manufacturer: ORing Industrial Networking Corp.
Manufacturer Address: 3F, 542‑2 Zhongzheng Road, Xindian District, New Taipei City 231, Taiwan, R.O.C.
Website: [www.oringnet.com](http://www.oringnet.com)
Support Contact: support@oringnet.com

The ORing IMG‑4312‑MN is an industrial‑grade IoT LTE LPWAN gateway designed for rugged environments requiring reliable serial‑to‑Ethernet and wireless connectivity. It integrates LTE Cat‑M1/Cat‑NB1 cellular communication, IEEE 802.11 b/g/n Wi‑Fi, and dual 10/100Base‑T(X) Ethernet ports, providing a versatile platform for industrial automation, remote monitoring, and M2M (machine‑to‑machine) applications.

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### 2. Key Features

- Multi‑Interface Connectivity:
- 2 × 10/100Base‑T(X) Ethernet ports (RJ‑45, auto MDI/MDIX)
- 1 × RS‑232/422/485 serial port (DB9 male)
- 1 × SIM card slot for LTE Cat‑M1/Cat‑NB1
- 1 × SMA female connector for cellular antenna
- 1 × RP‑SMA female connector for Wi‑Fi antenna

- Wireless Communication:
- LTE Cat‑M1/Cat‑NB1 modem supporting FDD and TDD bands
- Wi‑Fi IEEE 802.11 b/g/n up to 150 Mbps link speed

- Industrial Protocols:
- Modbus TCP/RTU for industrial automation
- MQTT and LWM2M IoT protocols (MQTT fully supported, LWM2M under development)

- Network & Security:
- Supports DHCP, NAT, VPN (OpenVPN), DDNS, SNMP, HTTPS, SSH
- Multiple WAN connection types: Dynamic/Static IP, PPPoE, Modem Dial‑up
- Advanced firewall, IP/MAC filtering, and 802.1X authentication

- Redundant Power Design:
- Dual DC inputs (12–48 VDC) with reverse polarity and overload protection
- Optional PoE P.D. (IEEE 802.3af) on ETH1 for IMG‑4312+‑MN

- Rugged Construction:
- IP‑30 metal enclosure
- Extended operating temperature range (‑10 °C to +60 °C)
- DIN‑rail and wall‑mount installation options

- Event & Alarm Management:
- Syslog, SNMP Trap, and Email notifications
- Event alarm configuration via web interface

- Software Platform:
- OpenWRT SDK support for custom project development
- Web‑based management interface with HTTPS access

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### 3. Technical Specifications

Physical Characteristics
- Enclosure: IP‑30 rated metal housing
- Dimensions: 45 (W) × 80.6 (D) × 95 (H) mm
- Weight: 372 g (IMG‑4312‑MN), 368 g (IMG‑4312+‑MN)

Ethernet Interface
- 2 × 10/100Base‑T(X) RJ‑45 ports, auto‑negotiation and auto MDI/MDIX
- PoE P.D. (IMG‑4312+‑MN only): IEEE 802.3af compliant, 1000 VDC isolation

Serial Interface
- 1 × DB9 male connector
- Modes: RS‑232 / RS‑422 / RS‑485 (2‑wire or 4‑wire)
- Baud Rate: 110 bps – 460.8 kbps
- Data Bits: 7, 8
- Stop Bits: 1, 1.5, 2
- Parity: None, Odd, Even, Mark, Space
- Flow Control: XON/XOFF, RTS/CTS, DTR/DSR

Cellular Interface
- LTE Cat‑M1/Cat‑NB1 modem
- Connector: 1 × SMA female
- Download/Upload Rates:
- Cat‑M1: 300 / 375 kbps
- Cat‑NB1: 32 / 70 kbps
- Supported Bands:
- FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
- TDD: B39

Wi‑Fi Interface
- Connector: 1 × RP‑SMA female
- Standards: IEEE 802.11 b/g/n
- Frequency Bands:
- FCC (US): 2.412 – 2.462 GHz (11 channels)
- CE/ETSI (EU): 2.412 – 2.472 GHz (13 channels)
- Modulation:
- 802.11b: CCK/DQPSK/DBPSK
- 802.11g: OFDM
- 802.11n: BPSK/QPSK/16‑QAM/64‑QAM
- Data Rates:
- 802.11b: 1/2/5.5/11 Mbps
- 802.11g: 6–54 Mbps
- 802.11n: up to 150 Mbps
- Transmit Power:
- 802.11b/g/n: 13.5 dBm ± 1.5 dBm
- Receiver Sensitivity:
- 802.11b: ‑90 dBm ± 2 dBm @ 1 Mbps
- 802.11g: ‑72 dBm ± 2 dBm @ 54 Mbps
- 802.11n: ‑68 dBm ± 2 dBm @ MCS7 (40 MHz)
- Security: WEP (64/128‑bit), WPA/WPA2, WPA‑PSK (256‑bit), AES/TKIP, 802.1X

Power
- Dual DC inputs: 12 – 48 VDC (0.5 A) via 6‑pin terminal block
- Power Consumption: 3.5 W typical
- Reverse polarity and overload protection
- Optional PoE input: 48 VDC (0.27 A)

Environmental Conditions
- Operating Temperature: ‑10 °C to +60 °C (14 °F to 140 °F)
- Storage Temperature: ‑40 °C to +85 °C (‑40 °F to 185 °F)
- Humidity: 5 % – 95 % non‑condensing

LED Indicators
- PWR1/PWR2/PoE: Green – Power ON
- ETH1/ETH2: Green – Link/Activity @ 100 Mbps
- WLAN: Green – Wi‑Fi Link/Activity
- WAN: Green – Modem Ready
- TX/RX: Red (receiving) / Green (transmitting)

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### 4. Functionality

The IMG‑4312‑MN functions as a multi‑protocol industrial gateway bridging serial, Ethernet, and wireless networks. It enables remote data acquisition, device control, and cloud connectivity for industrial IoT systems.

Primary Functions:
- Serial‑to‑Ethernet conversion (RS‑232/422/485 to TCP/IP)
- LTE Cat‑M1/NB‑IoT cellular backhaul for remote sites
- Wi‑Fi access point or client for local wireless connectivity
- Modbus TCP/RTU gateway for SCADA and PLC integration
- MQTT/CoAP/AWS IoT agent for cloud‑based telemetry
- VPN (OpenVPN) for secure remote access

Use Cases:
- Industrial automation and SCADA systems
- Smart grid and energy monitoring
- Transportation and fleet management
- Remote sensor networks and telemetry
- Building automation and environmental monitoring

Compatibility:
- Works with Modbus‑based PLCs, RTUs, and sensors
- Compatible with AWS IoT, MQTT brokers, and CoAP servers
- Supports OpenWRT SDK for custom firmware development

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### 5. Components & Accessories

Included in Package:
- IMG‑4312‑MN main unit
- Wall‑mount kit × 1
- DIN‑rail kit × 1
- 2.4 GHz Wi‑Fi antenna × 1
- Cellular antenna × 2
- Quick Installation Guide × 1
- CD (documentation and utilities)

Optional Accessories:
- DR‑45 Series – 45 W power supply
- DR‑75 Series – 75 W power supply
- DR‑120 Series – 120 W power supply

Connectors:
- Terminal block (6‑pin) for dual DC input
- DB9 male for serial interface
- RJ‑45 for Ethernet ports
- SMA and RP‑SMA for antennas

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### 6. Installation & Setup

Mounting Options:
- DIN‑Rail Installation:
Attach the included DIN‑rail kit to the rear panel and slide onto a standard DIN‑rail until it clicks securely.
- Wall Mounting:
Use the wall‑mount brackets and screws provided; ensure proper alignment and secure fastening.

Power Wiring:
- Connect DC power to V+ and V– terminals on the 6‑pin block.
- For redundancy, connect both PWR1 and PWR2 inputs.
- Alternatively, power via PoE (IMG‑4312+‑MN only).

Grounding:
- Connect the ground screw to an appropriate earth ground to minimize EMI.

Network Configuration:
1. Connect a PC to ETH1 (LAN) using a CAT5e/6 cable.
2. Access the web interface at http://192.168.10.1 (default).
3. Default credentials: admin / admin.
4. Configure WAN (LTE, PPPoE, or Static IP), LAN, and Wi‑Fi settings.
5. Set up serial port parameters and Modbus/MQTT communication as required.

Software Tools:
- M2M‑Tool: for managing and monitoring serial ports.
- Web GUI: for configuration, firmware updates, and diagnostics.

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### 7. Performance & Capabilities

Networking Performance:
- Ethernet throughput up to 100 Mbps per port
- Wi‑Fi throughput up to 150 Mbps (802.11n)
- Cellular uplink/downlink up to 375 kbps (Cat‑M1)

Serial Communication:
- Supports up to 5 simultaneous host connections (Virtual COM, TCP Server/Client, UDP)
- Configurable data buffering, delimiters, and flow control
- Force TX interval and latency optimization modes

IoT & Cloud Integration:
- MQTT agent for publish/subscribe messaging
- CoAP and AWS IoT agent support
- Configurable topics, client IDs, and certificates

VPN & Security:
- OpenVPN server/client with SSL encryption
- HTTPS web management
- WPA/WPA2 wireless encryption
- IP/MAC filtering and NAT firewall

Reliability:
- Dual power redundancy ensures continuous operation
- Hardware watchdog and event notification system
- Industrial‑grade components for 24/7 uptime

Limitations:
- LTE Cat‑M1/NB1 bandwidth suited for low‑data‑rate IoT applications
- Single serial port (expandable via external device servers if needed)

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### 8. Standards & Compliance

EMI/EMS Compliance:
- FCC Part 15 Class A
- CISPR (EN55022) Class A
- EN61000‑4‑2 (ESD)
- EN61000‑4‑3 (RS)
- EN61000‑4‑4 (EFT)
- EN61000‑4‑5 (Surge)
- EN61000‑4‑6 (CS)
- EN61000‑4‑8 (Magnetic Field)
- EN61000‑4‑11 (Dip/Interruption)

Safety Standards:
- EN60950‑1 (Information Technology Equipment Safety)
- EN60079‑0:2012 + A11:2013
- EN60079‑15:2010 (ATEX for explosive atmospheres)

Environmental & Mechanical Tests:
- Shock: IEC 60068‑2‑27
- Vibration: IEC 60068‑2‑6
- Free Fall: IEC 60068‑2‑31

ATEX Certification:
- License No.: DEMKO 16 ATEX 1701X
- Suitable for Class I, Division 2, Groups A, B, C, D or non‑hazardous locations

RF Compliance:
- FCC RF exposure compliant (minimum 20 cm separation)
- Industry Canada RSS standard compliant
- CE marking for EU regions

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### 9. Additional Information

Warranty:
- Standard 3‑year limited warranty (5 years for selected ORing products)
- Covers defects in materials and workmanship under normal use

Maintenance & Support:
- Firmware upgrades available via ORing website
- Configuration backup and restore via web interface
- Remote management through HTTPS, SNMP, or VPN
- Technical support via email and online documentation

Firmware & Software Updates:
- Web‑based firmware upgrade utility
- OpenWRT SDK for custom firmware development
- Configuration export/import for rapid deployment

Safety & Usage Notes:
- Install in an enclosure providing at least IP54 protection when used in hazardous areas
- Ensure transient protection not exceeding 140 % of rated voltage
- Disconnect power before servicing or wiring
- Maintain minimum 20 cm distance from antennas during operation

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### Summary

The ORing IMG‑4312‑MN is a compact, industrial‑grade IoT gateway engineered for reliable operation in demanding environments. Combining LTE Cat‑M1/NB‑IoT cellular connectivity, Wi‑Fi, and dual Ethernet interfaces, it bridges legacy serial devices with modern IP and cloud infrastructures. Its support for Modbus, MQTT, and OpenVPN makes it ideal for industrial automation, remote telemetry, and smart infrastructure applications.

With redundant power inputs, robust IP‑30 housing, and compliance with international safety and EMC standards, the IMG‑4312‑MN delivers dependable performance for mission‑critical IoT deployments. Its flexible configuration options, event management, and OpenWRT SDK support make it a future‑proof solution for industrial networking and M2M communication.