Shown here are the types of products that are used as one gets into the harsher environments. The typical requirements are for a higher level of protection on the connection, such as IP65/67, for shielding as the environment is noisy, and of course the runs are shorter. For the connection styles, the most common is an M12 connector which is a barrel connection in which the wires are terminated inside by either a screw termination or IDC (insulation displacement connection) style. The M12 is the standard connector that is used on the plant floor for almost all of the connections on the machine such as a sensor. The coding of the M12 is dependent on the type of connection that is being made. For example, for 2 pair ethernet the coding is referred to as a D-code, and for 4 pair it is referred to as an X-code. The patchcords are typically 600V rated as there are a lot of higher voltage devices in the area and this style of patchcord helps to eliminate the noise from the higher voltages. The 600V rated cable selection, for voltage isolation withstand, is based on the applicable regulatory environment and the electrical safety of the system design per NEC/NFPA 70 regulations. The 600V rated cables provide a cost saving by diverting the need to separate your network infrastructure from high voltage drive cables using conduit or other means. 600V rated does not mean that the ethernet network will carry 600V continuously, and there are no ethernet applications to support this currently.