Different M12 codes target different functions and application scenarios. The detailed comparison is as follows:
| Coding Type | Application Area | Features | Pin Configuration |
| A-code | Sensor signal transmission | Primarily used for sensors, actuators, supports analog or digital signals with low current. | 2–17 pins |
| B-code | Fieldbus systems | Used for Profibus and other fieldbus communication networks, suitable for device connections. | 4 or 5 pins |
| D-code | Industrial Ethernet | Supports high-speed data transmission (100 Mbps), commonly used in industrial communications. | 4 pins (2 for Ethernet signals) |
| L-code | Power transmission | Designed specifically for power supply, supports up to 16A current, suitable for motors and drive systems. | 4 pins (+L, -L, PE, N) |
| S-code | Three-phase power supply | Suitable for three-phase AC power, current up to 12A. | 4 pins (L1, L2, PE, N) |
| T-code | DC power transmission | Designed for DC power devices (63V/12A), such as controllers. | 4 pins (+, -, PE, N) |
| X-code | High-speed data transmission | Supports industrial Ethernet (10 Gbps), commonly used for high-demand industrial data. | 8 pins |
| M-code | Motor/drive connections | Suitable for motors and drive services, supports higher currents for power and control signal transmission. | 4 pins or more |
The advantage of L-code is that it can stably transmit high current, so it is irreplaceable in scenarios that require reliable power distribution, such as industrial robot power supply or high-power motor drive. A-code, D-code, etc. focus more on data transmission, and their application fields are significantly different.
About US
Premier Cable is a professional manufacturer specializing in the production of high-quality circular connectors and cable assemblies. Our product range includes a wide variety of M12 connectors, such as L-code, A-code, B-code, D-code, S-code, M-code, X-code, and T-code, available with pin configurations ranging from 2 to 17 pins. We offer both terminated cable assemblies and adapters, as well as specialized splitters like T-splitters, H-splitters, and Y-splitters. With a strong focus on precision, reliability, and customization, Premier Cable is your trusted partner for industrial connectivity solutions across automation, power transmission, and data communication industries.
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