Apple PC Compatibility Card 12-inch card - Manual (Page 77)

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 or monitor port, you can
plug the long connector into it. This will allow you to switch the monitor
between the PC environment and the Mac OS environment.
Power Macintosh 7200
Power Macintosh 7500
Power Macintosh 7600
Power Macintosh 8500
Power Macintosh 9500
Attach the short
connector on the
loopback cable to the
second monitor’s cable.
Attach the short
connector on the
loopback cable to the
second monitor’s cable.
Attach the short
connector on the
loopback cable to the
second monitor’s cable.
Long connector
Long connector
Long connector
63 Connecting Monitors and Other Equipment