Description:This Cat harness is one of two required to give technicians and customers the ability to output PLE601 Network Manager ECM data to an RS232 or RS485 format. This part number is for the connection to the equipment panel. Other required part 542-5350 is for PLE601 connection.Attributes:Three modes of functionality - RS232, RS485 4-wire, RS485 2-wireApplications:• Gensets• Consult your local Cat dealer for more information.