Using the MobilePro 3-17 are using the internal modemUsing AC power saves battery life for when you are on the goand helps prevent data loss.! CAUTIONFollow these precautions whenever you use the ACadapter and the MobilePro. When using the AC adapter, make sure the ACoutlet is near the MobilePro and easily accessible. Keep the main battery installed when running onAC power. When communicating or sending transmissions fora long time, use the AC adapter to conservepower.Connect the AC adapter as follows:1. Insert the plug on the AC adapter cable into the AC powerport on the left side of the MobilePro.2. Plug the AC adapter into a working AC outlet.3. Power on the MobilePro.Connecting the PC Connect CableThe PC Connect serial cable lets you connect the MobileProdirectly to a desktop or notebook computer.You can also use the cable along with a DB9 Male/Male nullmodem adapter to connect an external modem or other serialdevice to your MobilePro. (The adapter does not ship withthe MobilePro but can be purchased at a computer retailstore.)