This read-write integer (0-200) sets the maximum allowable value for temperature sensor 2 in the cabinet, and crossing it drives cpqCmcStatusTemp2 to overMax(4). It lets an administrator define the hard ceiling for a second monitored zone of the rack, such as the rear or top of the enclosure where heat commonly accumulates. A data-center technician might set this to 100 degrees so that a blocked rear exhaust triggers an immediate overMax alert on sensor 2 rather than going unnoticed.