Comprehensive Product Summary – ORing IES-1240 Industrial Unmanaged 24-Port Ethernet Switch

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### 1. Product Overview

Product Name: IES-1240
Model Number: IES-1240
Series: Industrial Unmanaged Ethernet Switch Series
Article Number: IES-1240
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial Unmanaged 24×10/100Base-T(X) Ethernet Switch
Version: 1.0 (Quick Installation Guide Reference)

The ORing IES-1240 is a rugged, industrial-grade unmanaged Ethernet switch designed for high-reliability networking in harsh environments. It provides 24 Fast Ethernet ports (10/100Base-T(X)) with automatic MDI/MDI-X detection, redundant DC power inputs, and robust surge and ESD protection. The device is engineered for continuous operation in demanding industrial applications such as factory automation, transportation systems, and surveillance networks.

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### 2. Key Features

- 24×10/100Base-T(X) RJ-45 Ports: Supports auto-negotiation and Auto MDI/MDI-X for flexible connection to various Ethernet devices.
- Store-and-Forward Switching Architecture: Ensures reliable data transmission with error checking and buffering.
- High Switching Capacity: 4.8 Gbps backplane bandwidth for efficient data handling across all ports.
- Redundant Power Inputs: Dual 12–48 VDC inputs on a 6-pin terminal block for uninterrupted operation in case of power source failure.
- Relay Output Alarm: Provides fault indication for power failure or abnormal conditions, enabling remote monitoring and maintenance alerts.
- Wide Operating Temperature Range: -40°C to +70°C, suitable for extreme industrial environments.
- Rugged IP-30 Metal Enclosure: Offers mechanical protection and electromagnetic shielding.
- Surge and ESD Protection: 4 kV ESD protection on Ethernet ports and 2 kV surge protection on power inputs.
- Flexible Mounting Options: Supports both DIN-rail and wall-mount installations.
- LED Indicators: Power, fault, link/activity, and duplex/collision LEDs for real-time status monitoring.
- High Reliability: Designed for continuous, maintenance-free operation with overload and reverse polarity protection.
- Compact Industrial Design: Optimized for control cabinets and industrial enclosures.

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### 3. Technical Specifications

Ethernet Ports:
- 24 × 10/100Base-T(X) RJ-45 ports
- Auto MDI/MDI-X support
- Auto-negotiation for speed and duplex mode

Switching Performance:
- Switching Fabric (Backplane Bandwidth): 4.8 Gbps
- MAC Address Table: 8,192 entries
- Priority Queues: 4
- Switching Method: Store-and-Forward
- Latency: 9 µs (typical)

Power Requirements:
- Input Voltage: Dual 12–48 VDC (redundant inputs)
- Connection Type: 6-pin terminal block
- Power Consumption: Typical 12 W (~9.6 W nominal)
- Protection: Overload current protection, reverse polarity protection
- Surge Protection: 2000 VDC

Physical Characteristics:
- Enclosure: IP-30 rated metal housing
- Dimensions (W × D × H): 96.4 × 108.5 × 154 mm (3.8 × 4.27 × 6.06 in.)
- Weight: 1,052 g (approx. 1.05 kg)
- Mounting: DIN-rail or wall-mount

Environmental Conditions:
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Operating Humidity: 5%–95% RH (non-condensing)

LED Indicators:
- Power LEDs (PWR1, PWR2, PWR): Green – indicates active power input
- Fault LED: Amber – indicates power failure or system fault
- Port LEDs:
- Green – Link/Activity (LNK/ACT)
- Amber – Duplex/Collision (Full Duplex indicator)

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### 4. Functionality

The ORing IES-1240 functions as an unmanaged Ethernet switch, automatically forwarding packets between connected devices without requiring configuration. It uses a store-and-forward switching mechanism to ensure data integrity by checking frame errors before forwarding.

Typical Use Cases:
- Industrial automation and control systems
- IP surveillance and security networks
- Intelligent transportation systems (ITS)
- Building management and monitoring systems
- Energy and utility network infrastructure
- Factory floor device interconnection (PLC, HMI, sensors, etc.)

Compatibility:
- Compatible with standard Ethernet devices supporting IEEE 802.3 and 802.3u protocols.
- Supports both straight-through and cross-over cable connections due to Auto MDI/MDI-X functionality.
- Works seamlessly with Ethernet I/O modules, IP cameras, and industrial controllers.

Operation Principle:
Each of the 24 ports automatically detects link speed (10/100 Mbps) and duplex mode (half/full). The switch buffers incoming frames, checks for errors, and forwards valid packets to the appropriate destination port. The internal 4.8 Gbps switching fabric ensures non-blocking communication between all ports.

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### 5. Components & Accessories

Included Items:
1. IES-1240 switch unit
2. 6-pin terminal block for power input and relay output connection
3. Dust covers for RJ-45 ports
4. Wall-mounting kit (brackets and screws)
5. DIN-rail mounting kit (88 mm rail bracket)
6. Quick Installation Guide (QIG)

Optional Accessories:
- External DC power supply (12–48 VDC)
- Ethernet cables (straight-through or cross-over)
- Grounding wire for frame ground connection

Connectors:
- Power Terminal Block: V1+, V1-, V2+, V2-, Fault Relay Output (1A @ 24VDC)
- Ethernet Ports: 24 × RJ-45 (8-pin) connectors
- Frame Ground: Dedicated grounding screw for chassis protection

RJ-45 Pin Assignments:
- MDI Port: Pin 1 (Tx+), Pin 2 (Tx-), Pin 3 (Rx+), Pin 6 (Rx-)
- MDI-X Port: Pin 1 (Rx+), Pin 2 (Rx-), Pin 3 (Tx+), Pin 6 (Tx-)

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### 6. Installation & Setup

Mounting Options:
- DIN-Rail Installation:
1. Attach the DIN-rail clip to the back of the switch.
2. Hook the top of the clip onto the DIN rail and press the bottom until it clicks into place.
3. Ensure the switch is securely fastened and properly grounded.

- Wall-Mount Installation:
1. Use the included wall-mount brackets and M3×5 screws.
2. Align the holes on the switch with the bracket holes.
3. Secure the unit to a stable surface using appropriate fasteners.

Power Connection:
- Connect DC power sources (12–48 VDC) to the terminal block:
- V1+ / V1- for Power Input 1
- V2+ / V2- for Power Input 2
- The relay output terminals provide fault indication (1A @ 24VDC).
- Ensure correct polarity and secure connections to prevent power interruption.

Ethernet Connection:
- Connect Ethernet devices using Cat5e or higher cables.
- The switch automatically detects cable type (straight or cross-over).
- Verify link/activity LEDs to confirm successful connections.

Startup Procedure:
1. Apply power to the switch.
2. Observe Power LEDs (PWR1, PWR2) – they should illuminate green.
3. Connect Ethernet devices; verify LNK/ACT LEDs for each port.
4. The switch begins forwarding traffic automatically—no configuration required.

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### 7. Performance & Capabilities

Switching Fabric: 4.8 Gbps non-blocking architecture ensures simultaneous full-speed communication across all ports.
MAC Address Table: 8,192 entries allow efficient handling of large networks.
Latency: 9 microseconds typical, ensuring minimal delay in data transmission.
Queue Management: Four priority queues support basic traffic prioritization for time-sensitive data.
Reliability:
- Redundant power inputs ensure continuous operation during power source failure.
- Relay output alarm provides immediate fault notification.
- Overload and reverse polarity protection safeguard internal circuits.
Efficiency:
- Low power consumption (~12 W typical) for energy-efficient operation.
- Passive cooling design eliminates moving parts, reducing maintenance needs.
Limitations:
- Unmanaged design means no VLAN, QoS configuration, or SNMP management.
- Limited to Fast Ethernet (100 Mbps) speeds per port.

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### 8. Standards & Compliance

Ethernet Standards:
- IEEE 802.3 (10Base-T)
- IEEE 802.3u (100Base-TX)
- IEEE 802.3x (Flow Control)

EMI/EMC Compliance:
- FCC Part 15 Class A
- CISPR (EN55022) Class A

EMS Immunity:
- EN61000-4-2 (ESD)
- EN61000-4-3 (Radiated Susceptibility)
- EN61000-4-4 (EFT/Burst)
- EN61000-4-5 (Surge)
- EN61000-4-6 (Conducted Susceptibility)
- EN61000-4-8 (Magnetic Field)
- EN61000-4-11 (Voltage Dips/Interruptions)

Environmental & Mechanical Tests:
- Shock: IEC60068-2-27
- Free Fall: IEC60068-2-32
- Vibration: IEC60068-2-6

Safety Certification:
- EN60950-1 (Information Technology Equipment Safety)

Ingress Protection:
- IP-30 rated enclosure (protection against solid objects >2.5 mm, no water protection)

These certifications ensure the IES-1240 meets international standards for electromagnetic compatibility, safety, and environmental resilience, making it suitable for deployment in regulated industrial environments.

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### 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 (+886-2-2918-3036).
- Firmware updates are not applicable (unmanaged switch).
- Routine maintenance involves periodic inspection of power and network connections, ensuring proper grounding and environmental conditions.

Manufacturer Contact:
- ORing Industrial Networking Corp.
- Tel: +886-2-2918-3036
- Fax: +886-2-2918-3084
- Website: [www.oring-networking.com](http://www.oring-networking.com)
- Email: support@oring-networking.com

Product Identification:
- Model: IES-1240
- Article Number: 1907-2-29-IES1240-0
- Documentation: Quick Installation Guide (Printed on recycled paper)

Maintenance Recommendations:
- Ensure adequate ventilation and avoid exposure to direct sunlight or moisture.
- Regularly check terminal block connections for tightness.
- Replace damaged cables or connectors immediately.
- Clean the exterior with a dry cloth; avoid solvents or liquids.

Operational Notes:
- The device is designed for continuous 24/7 operation.
- For redundancy, connect both DC power inputs to independent power sources.
- The relay output can be integrated into alarm systems for proactive fault management.

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### Summary

The ORing IES-1240 Industrial Unmanaged 24-Port Ethernet Switch is a robust, high-reliability networking solution engineered for industrial automation and mission-critical applications. With 24 Fast Ethernet ports, redundant power inputs, and comprehensive protection features, it ensures stable and uninterrupted communication in harsh environments. Its IP-30 metal housing, wide temperature tolerance, and compliance with international EMC and safety standards make it ideal for deployment in factories, transportation systems, and outdoor enclosures.

The IES-1240’s plug-and-play design eliminates configuration complexity, while its relay alarm output and LED indicators provide essential operational feedback. Backed by a 5-year warranty and ORing’s industrial networking expertise, the IES-1240 delivers dependable performance, long service life, and ease of integration into existing industrial Ethernet infrastructures.