Information Technology Reference
In-Depth Information
The SIM card included with the iPad 3G stores your name and account
information. You can remove it from the iPad and put it into another
device that accepts a Micro SIM card and still use your account. It ships with a
PIN code that's set by the network provider. To lock the SIM card for added secu-
rity, tap the SIM PIN button in the Cellular Data settings, switch SIM PIN to On,
and enter 1111 (the default for AT&T in the U.S.). To set a new code, tap Change
PIN and follow the instructions. (If you enter the wrong passcode three times,
the SIM is shut down, and you need to contact the cellular provider to re-acti-
vate it. See
http://support.apple.com/kb/HT4113
for more information.)
The iPad includes just two ports for connecting cables: the headphone
port at the top and the dock port at the bottom. The rest of the iPad's
communication happens wirelessly via Wi-Fi, 3G, or a third option:
Bluetooth. Thanks to this short-range wireless technology, you can
listen to music using Bluetooth headphones or speakers; you can also
type using any Bluetooth keyboard instead of the onscreen keyboard or
Apple's optional keyboard dock accessory.
When shopping for Bluetooth audio products, look for ones that
support A2DP (Advanced Audio Distribution Profile).
note
To communicate with the iPad, a Bluetooth device must be
paired
with it
to ensure that the device is recognized and won't get confused by other
Bluetooth connections nearby. You need to pair the device only once,
after which the iPad identifies and communicates with the keyboard or
audio product automatically when it's within range. Follow these steps:
1.
Open the Settings app and tap the General category.
