68 Keysight M9036A PXIe Embedded Controller User Guide
Service Chassis Power Inhibit Functionality
Chassis Power Inhibit Functionality
On some PXI chassis, the controller may go into a state where the blue LED on
the front panel is constantly lit and the controller never boots.
- For the Keysight M9018A PXIe chassis, this may happen when the rear panel
Inhibit switch is set to "MAN." If the controller is stuck in this state, toggling
(pulse low for a minimum of 500 ms) the inhibit pin (pin 5) on the DB-9
connector causes the system to reboot or change the rear panel Inhibit switch
to the DEFault position and then power on or reboot the chassis.
- For other chassis, refer to the manufacturer’s chassis documentation.