14 Hewlett-Packard Jornada 420 Palm-size PC

Back view of the cradle.

1.DC jack—Connects the P/PC to AC power, which also charges both the main and backup batteries.

2.Serial port (RS-232C)—Connects the HP Jornada to your desktop PC to transfer files or to synchronize data. (For more information, see “Connecting for the first time” on page 39.)

The HP Jornada must be in its cradle in order to connect to an AC adapter or to a PC.

Connecting the AC adapter

You can operate the HP Jornada on AC power using the AC adapter and cradle. The AC adapter accepts voltages from 100 V to 240 V, so you can use it anywhere in the world. However, you may need a plug adapter to accommodate different electrical outlets.

When the HP Jornada is connected to AC power, the main battery and backup battery are charged automatically. The AC Charging LED indicates the charging status of the main battery:

·Amber—Indicates that the battery is charging (connected to AC power).

·Green—Indicates that the battery is fully charged.

The AC Charging LED is illuminated only if the P/PC is connected to AC power.

A dialog box pops up when the backup battery power is low. Connect to AC power immediately to recharge the backup battery.