Allen-Bradley 1585J-M4TBJM-15 Ethernet Cable: 15m M12 to RJ45 Cordset for Industrial Networks

Technical Specifications

Main Features and Advantages

Robust Environmental Protection: The standout feature of the Allen-Bradley 1585J-M4TBJM-15​ is its industrial durability. The IP67-rated M12 connection provides a sealed interface that is immune to washdowns, humidity, dust, and chemical exposure, ensuring a stable connection where standard RJ45 connectors would corrode or short. The rugged PUR cable jacket offers superior resistance to oils, greases, acids, and alkalis commonly found in industrial settings, as well as excellent abrasion and tear resistance, which prevents damage from being dragged across floors or pinched in cable tracks.Guaranteed Performance and Reliability: This cordset is engineered for signal integrity. The D-coded M12 connector is mechanically keyed to prevent mismating with A-coded (sensors) or other coded connectors, eliminating connection errors. The cable features high-quality, shielded twisted pairs that minimize crosstalk and electromagnetic interference (EMI) from nearby motors, drives, and welding equipment, which is critical for maintaining network integrity and avoiding data corruption in noisy plant environments. The Allen-Bradley 1585J-M4TBJM-15​ is built to the precise mechanical and electrical specifications required for reliable Ethernet communication, ensuring consistent performance over its long service life. The 15-meter length provides ample reach for connecting devices in machine cells or on larger equipment. As a pre-assembled, tested cordset from a trusted manufacturer like Allen-Bradley, it eliminates the potential for field termination errors, reduces installation time, and provides a plug-and-play, reliable network link that minimizes costly network downtime.

Application Field

The Allen-Bradley 1585J-M4TBJM-15​ Ethernet cordset is designed for robust connectivity in Industrial Automation and Control System (IACS) networks. Its primary application is connecting field devices that feature an M12 Ethernet port to the broader network infrastructure. This is ubiquitous in modern Ethernet/IP and PROFINET networks, where it is used to link IP67-rated remote I/O blocks, motor starters (e.g., Allen-Bradley ArmorStart), variable frequency drives, vision sensors, barcode readers, and advanced sensor hubs directly to a managed switch or an automation controller’s built-in switch port. In automotive, food & beverage, and pharmaceutical manufacturing, where washdowns are frequent, the IP67 rating of the 1585J-M4TBJM-15​ makes it indispensable for devices on the machine perimeter.Furthermore, this cordset is essential for connecting IO-Link Masters, which often have an M12 Ethernet uplink port, to the plant network. It is also used to interconnect devices within a machine cabinet to a cabinet-mounted switch, or to connect a switch inside a sealed enclosure (via a gland) to an external device. In material handling and logistics, it connects Ethernet-enabled scanners and RFID readers. The Allen-Bradley 1585J-M4TBJM-15​ is the preferred solution over a field-assembled cable with a separate adapter because it provides a single, integrated, and sealed unit that is faster to install and more reliable. Any industrial application requiring a durable, sealed, and high-integrity Ethernet connection between an M12-equipped device and standard network equipment is an ideal use case for this cordset, ensuring robust communication for real-time control and data collection.