Apple PC Compatibility Card (Installation) - Manual (Page 52)

3 Plug the connector on the short end of the cable into the cable for the monitor that you
want to use with the PC environment.
In most cases, you leave the long connector on the loopback cable unplugged.
But if your computer has an additional video card installed in the second PCI
slot, you can plug the long connector into it. This will allow you to switch the
second monitor between the PC environment and the Mac OS environment.
Connecting a PC game controller
Some models of the PC Compatibility Card come with a joystick port. To
connect a PC game controller, such as a joystick, remove the plastic cover on
the joystick port; then plug your game controller into the port.
WARNING Do not plug a monitor into the joystick port, and do not plug a
joystick into a monitor port (marked with the icon ™). Serious damage
can result to your equipment.
The joystick port is marked with the icon. Remove
the port cover before plugging a game controller into
the joystick port. Leave the port cover on if you are
not going to attach a game controller.
Game controller
Plug the game controller
into the joystick port.
Attach the short
connector on the
loopback cable to the
second monitor’s cable.
Long connector
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