Comprehensive Product Summary – IDS‑M311 Industrial Modbus Gateway
*(Approx. 12,000 characters / ~3,000 tokens)*

---

### 1. Product Overview

Product Name: IDS‑M311
Model: IDS‑M311
Series: IDS‑M3 Industrial Gateway Series
Article Number: IDS‑M311
Manufacturer: ORing Industrial Networking Corp.

The IDS‑M311 is a compact, rugged, and high‑performance industrial Modbus gateway designed to bridge Modbus TCP and Modbus RTU/ASCII networks. It provides a single serial communication port (software‑selectable for RS‑232, RS‑422, or RS‑485) and one 10/100 Base‑T(X) Ethernet port. The device is engineered for industrial automation, process control, and remote monitoring applications where reliable serial‑to‑Ethernet communication is essential.

With its IP‑30 metal enclosure, dual redundant DC power inputs, and extended operating temperature range, the IDS‑M311 ensures continuous operation in harsh industrial environments. It supports flexible mounting options (DIN‑rail or wall‑mount) and is configurable via a user‑friendly web interface.

---

### 2. Key Features

- Protocol Conversion: Converts between Modbus TCP and Modbus RTU/ASCII, enabling seamless integration of legacy serial devices into modern Ethernet networks.
- Flexible Serial Interface: One DB9 male port, software‑selectable for RS‑232, RS‑422, or RS‑485 (2‑wire/4‑wire) operation.
- High Connectivity: Supports up to 16 simultaneous TCP connections and 32 concurrent requests, allowing multiple clients to access serial devices concurrently.
- Multiple Operating Modes: RTU Master, RTU Slave, ASCII Master, and ASCII Slave modes for versatile deployment.
- Wide Baud Rate Range: 110 bps to 115.2 kbps with configurable data bits (5–8), parity (odd, even, none, mark, space), and stop bits (1, 1.5, 2).
- Dual Power Inputs: Redundant 12–48 V DC inputs via terminal block and DC jack ensure uninterrupted operation.
- Web‑Based Configuration: Integrated web interface for configuration, monitoring, and firmware updates.
- Comprehensive Protocol Support: ICMP, IP, TCP, UDP, DHCP, BOOTP, DNS, SNMP v1/v2c, HTTPS, SMTP, DDNS, PPPoE, and Modbus TCP.
- Industrial‑Grade Design: IP‑30 metal housing, vibration/shock resistance, and extended temperature tolerance (‑10 °C to +60 °C).
- LED Indicators: Power, Ethernet link/activity, and serial TX/RX LEDs for real‑time status monitoring.
- Cross‑Platform Compatibility: Supports Windows NT/2000/XP/2003/Vista/7 (32/64‑bit).
- Mounting Flexibility: Supplied with both DIN‑rail and wall‑mount kits.
- Long‑Term Reliability: Backed by a 5‑year manufacturer warranty.

---

### 3. Technical Specifications

Physical Ports
- Ethernet: 1 × 10/100 Base‑T(X) RJ‑45 port, Auto MDI/MDIX
- Serial: 1 × DB9 male connector, software‑selectable RS‑232/422/485

Serial Communication Parameters
- Baud Rate: 110 bps – 115.2 kbps
- Data Bits: 5, 6, 7, 8
- Parity: Odd, Even, None, Mark, Space
- Stop Bits: 1, 1.5, 2
- Flow Control: XON/XOFF, RTS/CTS, DTR/DSR
- RS‑232 Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND
- RS‑422 Signals: Tx+, Tx‑, Rx+, Rx‑, GND
- RS‑485 (4‑wire): Tx+, Tx‑, Rx+, Rx‑, GND
- RS‑485 (2‑wire): Data+, Data‑, GND

Network Protocols
ICMP, IP, TCP, UDP, DHCP, BOOTP, DNS, SNMP v1/v2c, HTTPS, SMTP, DDNS, PPPoE, Modbus TCP

Power
- Input Voltage: Dual 12–48 V DC (redundant)
- Connectors: 3‑pin terminal block and DC power jack
- Power Consumption: Typical 4 W
- Protection: Overload current protection and reverse polarity protection (on terminal block)

Mechanical Characteristics
- Enclosure: IP‑30 rated metal housing
- Dimensions (W × D × H): 72 × 29.4 × 123.4 mm (2.83 × 1.16 × 4.86 in.)
- Weight: Approx. 294 g

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 % RH, non‑condensing

LED Indicators
- PWR1/PWR2: Red = booting; Green = normal operation; Red blink = IP conflict or DHCP issue
- Ethernet (LNK/ACT): Green = 100 Mbps link/activity; Amber = 10 Mbps link/activity
- Serial TX/RX: Green = transmitting; Red = receiving

---

### 4. Functionality

The IDS‑M311 functions as a protocol conversion gateway between Ethernet‑based Modbus TCP networks and serial Modbus RTU/ASCII devices. It enables legacy serial equipment—such as PLCs, sensors, meters, and controllers—to communicate with modern SCADA or HMI systems over Ethernet without hardware modification.

Operation Modes:
- RTU Master / ASCII Master: The gateway polls multiple slave devices on the serial bus and transmits data to Modbus TCP clients.
- RTU Slave / ASCII Slave: The gateway acts as a slave device, allowing Modbus TCP masters to access serial devices through it.

Use Cases:
- Industrial automation and process control
- Building management systems (BMS)
- Energy monitoring and smart grid integration
- Remote I/O and telemetry systems
- Factory equipment networking and data acquisition

Compatibility:
- Works with any Modbus TCP or Modbus RTU/ASCII compliant device.
- Supports standard Ethernet cabling (Cat 3/4/5/5e UTP, 100 m max).
- Compatible with major operating systems for configuration and monitoring.

---

### 5. Components & Accessories

Included in Standard Package:
- IDS‑M311 device × 1
- Wall‑mount kit × 1
- DIN‑rail kit × 1
- CD (software and documentation) × 1
- Quick Installation Guide × 1

Optional Accessories:
- DR‑45 Series: 45 W DC power supply
- DR‑75 Series: 75 W DC power supply
- DR‑120 Series: 120 W DC power supply
- PAE‑121000: 12 V DC / 1000 mA (12 W) EU plug power adapter
- PAA‑121000: 12 V DC / 1000 mA (12 W) US plug power adapter

Connectors:
- RJ‑45 Ethernet port (Auto MDI/MDIX)
- DB9 male serial port
- 3‑pin terminal block for DC power input
- DC power jack (12–48 V DC)

---

### 6. Installation & Setup

Mounting Options:
- DIN‑Rail Installation:
1. Attach the DIN‑rail kit to the rear panel using screws.
2. Slide the device onto the DIN‑rail until it clicks securely.
- Wall‑Mount Installation:
1. Attach the wall‑mount kit to the rear panel with three screws.
2. Mark and drill holes on the wall using the device as a template.
3. Insert screws through the mounting holes and secure the device.

Network Connection:
- Connect the RJ‑45 port to a switch, router, or PC using Cat 3/4/5/5e UTP cable (max 100 m).
- Auto MDI/MDIX allows direct or crossover cables.

Power Connection:
- Connect DC 12–48 V to the terminal block (V+ / V–) or DC jack.
- Dual inputs (PWR1/PWR2) provide redundancy.

Serial Connection:
- Connect serial devices via DB9 male connector.
- Select RS‑232, RS‑422, or RS‑485 mode through the web interface.

Configuration:
- Access the web interface using a browser (Internet Explorer 6.0 or later).
- Configure IP settings, Modbus mode, serial parameters, and security options.
- Supports firmware updates and device monitoring via HTTPS.

Safety Considerations:
- Ensure adequate ventilation and ambient temperature within specified limits.
- Avoid mechanical stress or uneven loading during installation.
- Verify circuit protection and grounding to prevent electrical hazards.

---

### 7. Performance & Capabilities

- Concurrent Connections: Up to 16 TCP sessions and 32 simultaneous Modbus requests.
- Serial Device Support: Up to 31 Modbus RTU/ASCII nodes on a single serial bus.
- Data Throughput: Optimized for low‑latency serial‑to‑Ethernet conversion.
- Reliability: Dual power redundancy and watchdog mechanisms ensure continuous operation.
- Efficiency: Typical power consumption ≈ 4 W, suitable for energy‑sensitive installations.
- Limitations: Single serial port; for multi‑port applications, higher‑end models in the IDS‑M3 series are recommended.

---

### 8. Standards & Compliance

Regulatory Approvals:
- EMI: FCC Part 15, CISPR (EN55022) Class A
- EMS:
- 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)
- Shock: IEC 60068‑2‑27
- Vibration: IEC 60068‑2‑6
- Free Fall: IEC 60068‑2‑32
- Safety: EN 60950‑1 (Information Technology Equipment Safety)
- Power Automation: IEC 61850‑3, IEEE 1613 (for substation and industrial automation environments)

These certifications confirm the IDS‑M311’s compliance with international standards for electromagnetic compatibility, electrical safety, and mechanical durability, ensuring suitability for mission‑critical industrial applications.

---

### 9. Additional Information

Warranty:
- 5‑year limited hardware warranty from ORing Industrial Networking Corp.

Support & Maintenance:
- Technical support available via email (support@oring‑networking.com) and phone (+886‑2‑2218‑1066).
- Firmware updates and configuration utilities provided on the included CD or downloadable from the manufacturer’s website.
- Maintenance involves periodic inspection of power connections, grounding, and firmware version control.

Manufacturer Contact:
ORing Industrial Networking Corp.
Tel: +886‑2‑2218‑1066 Fax: +886‑2‑2218‑1014
Website: [www.oring‑networking.com](http://www.oring-networking.com)
Email: support@oring‑networking.com

Ordering Information:
- Model: IDS‑M311
- Description: Industrial 1‑port Modbus Gateway with 1 × RS‑232/422/485 and 1 × 10/100 Base‑T(X) Ethernet port

Version: 1.0 (QIG 1907‑2‑29‑IDSM311‑1.0)

---

### Summary

The ORing IDS‑M311 Industrial Modbus Gateway is a robust, compact, and feature‑rich solution for bridging serial Modbus devices with Ethernet‑based control systems. Its flexible serial interface, redundant power design, and comprehensive protocol support make it ideal for industrial automation, energy management, and remote monitoring applications.

Engineered for rugged excellence, the IDS‑M311 combines reliability, configurability, and compliance with global industrial standards. With its intuitive web interface, wide environmental tolerance, and long‑term warranty, it delivers dependable performance in demanding industrial environments where continuous communication and data integrity are critical.