Black Box KV6104SA-R2, Manual

Page: 62 / 98

61
CHAPTER 5: Operation
5.8 Hot-Plugging Devices Into the ServSwitch Duo/Quadro and Re-Enabling
Disconnected CPU PS/2 Mouse Ports
We suggest that you turn off the computers that will be connected to the
ServSwitch Duo/Quadro before you install a Duo/Quadro system. However, even
if this is not possible, most systems can be “hot-plugged” (connected to the Duo/
Quadro while they are powered and operating); the PS/2 mouse-port malfunctions
this usually causes can often be overcome by using the Duo’s/Quadro’s mouse-
restoration functions. (The keyboard connection will normally restore itself
automatically.)
Let’s take this from the top: On many computer CPUs, mouse movement will be
lost if the PS/2 mouse is unplugged and plugged back in while the CPU is
running. Mouse movement can then only be restored by rebooting the CPU. This
is because the mouse drivers only set up and enable the mouse when the CPU is
initially booted.
If you have powered down your Duo/Quadro, or if you are attempting to hot-
plug a system into it, you might be able to restore lost mouse movement using the
Duo’s/Quadro’s mouse-restoration functions.
Important: Mouse-restoration functions should be used with caution, because
unpredictable results might occur if the wrong mouse type is selected. If in doubt,
restore the mouse by rebooting the CPU normally.
Standard PS/2 mouse data uses a different data format than IntelliMouse data,
so two reset functions are provided on the Duo/Quadro. The type of data format
expected by the CPU depends upon the driver and the type of mouse that was
connected when the driver was booted. (If the CPU was attached to the Duo/
Quadro when it was booted, the Duo/Quadro would have behaved as if it were an
IntelliMouse.) The following table may be used as a guide; note that the mouse-
reset functions predict the likely mouse
resolution settings but may not restore the
speed
or
sensitivity
of the mouse exactly as they were when the CPU originally
booted:
Type of device Driver type: Probable Suggested
connected expected restoration:
at bootup: data format:
PS/2 mouse PS/2 only PS/2 Standard
PS/2 mouse IntelliMouse PS/2 Standard
IntelliMouse or switch PS/2 only PS/2 Standard
IntelliMouse or switch IntelliMouse IntelliMouse IntelliMouse