Asus B50A Hardware User Manual page 21

Microphone Input Jack

The mono microphone jack (1/8 inch) can be used to connect an external microphone or output
signals from audio devices. Using this jack automatically disables the built-in microphone. Use
this feature for video conferencing, voice narrations, or simple audio recordings.

USB Port (2.0/1.1)
2.0
The USB (Universal Serial Bus) port is compatible with USB 2.0 or USB 1.1 devices such as
keyboards, pointing devices, cameras, hard disk drives, printers, and scanners connected in a
series up to 12Mbits/sec (USB 1.1) and 480Mbits/sec (USB 2.0). USB allows many devices to
run simultaneously on a single computer, with some peripherals acting as additional plug-in sites or
hubs. USB supports hot-swapping of devices so that most peripherals can be connected or disconnected
without restarting the computer.

IEEE1394 Port (on selected models)
IEEE1394 is a high speed serial bus like SCSI but has simple connections and hot-
plugging capabilities like USB. The interface IEEE1394 has a bandwidth of 100-400
Mbits/sec and can handle up to 63 units on the same bus. IEEE1394 is also used in
high-end digital equipment and should be marked "DV" for Digital Video port.
Air Vents
8
The air vents allow cool air to enter and warm air to exit the Notebook PC.
IMPORTANT! Make sure that paper, books, clothing, cables, or other objects
do not block any of the air vents or else overheating may occur.
9
Modem Port (on selected models)
The RJ-11 modem port with two pins is smaller than the RJ-45 LAN port and supports
a standard telephone cable. The internal modem supports up to 56K V.90 transfers. The
built-in connector allows convenient use without additional adapters.
IMPORTANT! The built-in modem does not support the voltage used in digital
phone systems. Do not connect the modem port to a digital phone system or
else damage will occur to the Notebook PC.
10 Power (DC) Input
The supplied power adapter converts AC power to DC power for use with this jack. Power sup-
plied through this jack supplies power to the Notebook PC and charges the internal battery pack.
To prevent damage to the Notebook PC and battery pack, always use the supplied power
adapter. CAUTION: MAY BECOME WARM TO HOT WHEN IN USE. BE SURE
NOT TO COVER THE ADAPTER AND KEEP IT AWAY FROM YOUR BODY.
Knowing the Parts
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