Phoenix Contact 1605863 A cable connector with a long straight design features a screw locking mechanism and is identified by the M40 standard, offering a total of four positions plus pole ear (PE) for secure contact connections. The connection type is socket-based, and it is shielded to prevent electromagnetic interference. It can accommodate cables with diameters ranging from 21 mm to 25.5 mm and utilizes a crimp connection method for secure series connections, classified under the SM series designation.