Allen-Bradley 1585D-M4GBJM-8 Ethernet Media Cable

Allen-Bradley 1585D-M4GBJM-8 Ethernet Media Cable is a Rockwell Automation patchcord in the 1585D family designed for Fast Ethernet copper networks. It is a RJ45-to-RJ45 patchcord built with four-conductor twisted-pair copper conductors, compatible with Cat5e specifications, and intended for 100BASE-TX Ethernet transmission. The designation 1585D-M4GBJM-8 identifies a Micro D-Code, QD Style Ethernet media cable in this series and indicates an eight-meter length, commonly used to connect nearby devices within an industrial control network. This patchcord is used to interconnect Ethernet-enabled devices such as Rockwell ControlLogix/CompactLogix controllers, I/O modules, network switches, or HMIs on factory floors where Allen-Bradley equipment is deployed. In Rockwell’s Ethernet Media catalog, 1585D cables are described as four-conductor patchcords for Ethernet signaling over copper, supporting Fast Ethernet data rates with RJ45 interfaces, suitable for short to medium length runs in rugged industrial environments. When selecting a cable, ensure the length indicated by the suffix (8 in this case) matches your installation; the model family also includes 2, 5, and 7.5 meter variants for similar part numbers.