M12 D-coded 4-pin connectors carry 100BASE-TX Ethernet for industrial field devices. D-code prevents mating with other M12 variants. Used on PROFINET, EtherCAT, and EtherNet/IP field devices.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | TX+ | Transmit positive | BUS |
| 2 | RX+ | Receive positive | BUS |
| 3 | TX- | Transmit negative | BUS |
| 4 | RX- | Receive negative | BUS |
M12 D-coded 4-pin connectors carry 100BASE-TX Ethernet for industrial field devices. D-code prevents mating with other M12 variants. Used on PROFINET, EtherCAT, and EtherNet/IP field devices.