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Connect the AC adaptor before connecting the LAN cable. The AC
adaptor must remain connected during LAN use. If you disconnect the
AC Adaptor while the computer is accessing a LAN, the system may
hang up.
Do not connect any other cable to the LAN jack except the LAN cable.
Otherwise, malfunctions or damage may occur.
Do not connect any power supplying device to the LAN cable that is
connected to the LAN jack. Otherwise, malfunctions or damage may
occur.
1. Turn off the power to all external devices connected to the computer.
2. Plug one end of the cable into the LAN jack. Press gently until you
hear the latch click into place.
Figure 4-5 Connecting the LAN cable
1
2
1. LAN jack 2. LAN cable
3. Plug the other end of the cable into a LAN hub connector or router.
Check with your LAN administrator and hardware or software vendor
before using or configuring a network connection.
Battery
This section explains battery types, use, recharging methods and handling.
Battery types
The computer has different types of batteries.
Battery pack
When the AC adaptor is not connected, the computer's main power source
is a lithium ion battery pack, also referred to in this manual as the main
battery.
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the computer is turned off. If the RTC battery becomes
completely discharged, the system will lose this information and the real
time clock and calendar will stop working.
Satellite U840W series
User's Manual 4-12