Sony Ericsson P990i - Manual (Page 40)

White Paper P990i
40 January 2006
Preliminary version - P1F
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IrDA
IrDA (Infrared Data Association) is a point-to-point
communication link between two infrared ports.
The infrared beam has to be directed towards the
target infrared port and as long as the two infrared
ports are within sight and range, the devices can
exchange data. Object Exchange via infrared (IrObex) supports
transferring objects between compatible phones.
You can use P990i to control electrical devices that
have an infrared port, such as, a television or DVD
player.
USB
P990i is USB 2.0 (Universal Serial Bus) compliant.
The bus is 12 Mbps and supports 63 devices. The
idea of the USB is to allow easy connection of
mobile phone to PC. USB is designed to be “com-
pletely Plug and Play”, meaning that devices will be
correctly detected and configured automatically as
soon as they are attached.
USB in a mobile phone means convenient data
transfer between the phone and a PC.
P990i supports USB charging, you can charge your
phone by plugging the USB lead into the PC, this is
very useful if you travel a lot. The Memory stick™ is
also visible on the PC as a mass storage device.