IX Industrial Connectors: A-Key Vs. B-Key And Their Role in Machine Vision & Industrial Automation

Mar 17, 2026

Leave a message

IX Industrial Connectors: A-Key vs. B-Key and Their Role in Machine Vision & Industrial Automation

Redefining Miniaturized Ethernet for Machine Vision & Industrial Automation

The IX Industrial Connector series (e.g., IX40G-A-10P-JC / IX40G-B-10S-CV) is a next-generation standard originally introduced by Hirose Electric and HARTING. As a leading manufacturer, Premier Cable (PCM Cable Co., Ltd.) provides customized, fully compliant IX cable assemblies tailored to your industrial needs.

🚀 Why Choose IX Over RJ45?

Designed specifically to replace the traditional RJ45 connector, the 10-pin high-speed IX interface offers unparalleled advantages for Industrial Cameras, Robotics, PLCs, and Control Systems.

70% Smaller

Drastically reduces PCB space compared to standard RJ45 ports.

10Gbps Speed

Supports Cat6A data transmission with robust 10-pin differential pairs.

High Immunity

Exceptional EMI shielding and vibration resistance for heavy automation.

🌍 IEC 61076-3-124 Standard & Compatibility

The Role of IEC 61076-3-124

The IX series strictly complies with the IEC 61076-3-124 standard issued by the International Electrotechnical Commission. This standard guarantees:

Seamless Integration: Specifies exact connector dimensions, mechanical strength, and signal characteristics, allowing products from various suppliers to unify into one industrial setup.
Unmatched Reliability: Benchmarked for high EMC (Electromagnetic Compatibility), ensuring long-term durability against severe vibration, temperature changes, and harsh environments.

Cross-Brand Interoperability

As the primary manufacturers, Hirose and HARTING IX connectors are engineered to be fully cross-compatible.

💡 Pro Tip for Engineers:
You can confidently interchange Hirose and HARTING parts without matching concerns. However, when sourcing from other brands, always verify their IEC 61076-3-124 compliance. Choosing certified equipment is the only way to ensure maximum compatibility and prevent performance drops in demanding machine vision systems.

⚙️ Structural Differences: A-Key vs. B-Key

Both interfaces feature identical 10-pin counts. However, their mechanical keying differs entirely to prevent mismating-ensuring you never accidentally plug a control signal cable into a high-speed data port.

Type A-Key (Ethernet Data)

Primary Use: High-speed Industrial Network Communication.
Speed: Cat6A / 10Gbps.
Signal Type: High-speed differential pairs with EMI shielding.
Typical Devices: Industrial Cameras (GigE), PLCs ↔ Switches, IPCs, PoE devices.
Popular Models: IX40G-A-10P-JC, IX40G-A-10S-CV

Type B-Key (Control / Signal)

Primary Use: Non-Ethernet applications (Control & Signaling).
Speed: Varies by protocol (e.g., Serial Data).
Signal Type: Digital I/O, Control Signals, Synchronization.
Typical Devices: PLC I/O modules, Sensors, Actuators, HMI interfaces.
Popular Models: IX40G-B-10P-JC, IX40G-B-10S-CV

📷 IX Connectors in Machine Vision Systems

In industrial camera and Frame Grabber applications, physical isolation between data and control is critical. The IX series perfectly separates these functions to ensure stable EMI performance and zero-latency triggers.

Industrial Camera (Machine Vision)

↓ IX A-Key

10GigE Data
Frame Grabber / IPC

↓ IX B-Key

Trigger / I/O Control
PLC / Sensor

📊 Summary at a Glance

Feature	IX A-Key	IX B-Key
Main Function	Industrial Ethernet Data	Control & Signal I/O
Data Rate	Up to 10Gbps	Signal Level / Serial
Common Devices	GigE Cameras, Switches, IPCs	PLCs, Sensors, I/O Modules
Intermateability	❌ Cannot mate with B-Key	❌ Cannot mate with A-Key

🔧 Our Custom IX Cable Assemblies

We provide a comprehensive range of custom cable assemblies for both IX A-Key and B-Key connectors. Whether you need IX to RJ45, IX to M12 X-Code, or panel-mount extension cables, we have you covered with high-quality, factory-direct solutions.

IX A-Key Ethernet Cable Assemblies

IX B-Key Serial / Control Cable Assemblies

📩 Let's Build Your Vision System

💡 Bonus for our clients: Are you working on Industrial Camera, GMSL, or Machine Vision wiring? We provide a complete IX Plug Architecture Guide (including 10G Camera, Frame Grabber, and PoE layouts) to help you finalize your design and boost your sales.