PT CPC5565, Руководство пользователя, Страница: 39 / 118

Switches
39
Switch Pack 3 (SW3)
SW3-1 Port 80 Post Codes Out Serial Port (Front Panel)
Open = Disabled (default)
Closed = Enabled
SW3-2 Reserved
Reserved; Do not change this switch setting.
SW3-3 Force Drone Mode
Open = Uses SYSEN# to determine system master/drone mode (default)
Closed = Forces drone mode operation
SW3
-4 Reserved
Reserved; Do not change this switch setting.
Push-Button Reset (SW4)
SW4 is a push button on the CPC5565's front panel. Pressing SW4 forces a hard CPU reset
and holds the board in reset until SW4 is released. See
Figure 2-1, “CPC5565 Front Panel,” on
page 19 for the switch location.
Hot-Swap Switch (SW5)
SW5 is the hot-swap ejector switch on the lower ejector handle. Its function and behavior is
defined by PICMG 2.1. The ejector handles are used when the CPC5565 is inserted or
removed (hot swapped) from a chassis that is powered on. Before removing a board from a
system that is powered on, open the ejector handles just enough to disengage them from the
chassis, but without fully disengaging the bus connectors from the midplane. This causes
software to be notified that the board is about to be removed. Once the blue hot-swap LED on
the front panel is lit, it is safe to completely remove the board from the chassis. See
Figure 2-1,
“CPC5565 Front Panel,” on page 19 for the LED location.
The hot swap ejector switch can also be used to signal the IPMC to shut down power to the
payload. To do this, open-close-open the handle within two seconds. This functionality is also
available via the hot swap ejector switch on an optional RTM, such as the PT RTM4811, mated
to the CPC5565. See
“Payload Shutdown Timeout,” on page 75 , for information about using
the ejector handle to perform a graceful (ACPI) shutdown.