Apple Duo 270C manual Network, Modem, If you have system problems

Network

If you installed the appropriate NuBus card in your Duo Dock, then whenever your PowerBook Duo is docked you have access to another network type—such as Ethernet or Token Ring—in addition to your computer’s built-in LocalTalk. The first time you use the other network, you must open the Network control panel and select that network type.

Once you have made a selection, the computer remembers it whenever the PowerBook Duo is docked. Whenever the computer is not docked, LocalTalk is the network type.

Modem

If you want to use an external modem with your Powerbook Duo System, connect the modem cable to the Duo Dock port marked with this icon: W

If your computer has an internal modem, select either Internal or External Modem in the PowerBook control panel before opening your telecommunications program.

If you have system problems

If your docked computer crashes (the screen goes blank or fills with gibberish) or freezes (the pointer doesn’t move and input devices don’t work), press the power button on the back of the dock once. Pressing once turns the computer off. Use the Power On key on your external keyboard to turn the computer on again.

Pressing the power button erases any information you did not save, but it allows you to restart the system and continue working.

See the troubleshooting section of your PowerBook Duo User’s Guide for more information about handling system problems.

224 Chapter 13: Building a PowerBook Duo System