Sony Ericsson T612 Benutzerhandbuch

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White Paper
 
T610/612
29
Infrared transceiver
Infrared communication creates a data link between two 
communications devices through an infrared beam of 
light. On the T610/612, this link is used to connect with 
desktop computers, PDAs, Sony Ericsson handheld 
computers, laptop PCs, other phones and other hardware 
supporting the standard. The Infrared Data Association 
(IrDA) has set the hardware and software standards that 
form the infrared communication links. The T610/612 
complies with the IrMC 1.1 specification, which defines 
how mobile telephony and communication devices can 
exchange information. In the T610/612, the IrMC 1.1 
specification is also used for communication via a cable.
Key benefits of using the T610/612 with its built-in 
infrared transceiver:
True wireless communication
Low power consumption
Secure data transmission with the IrDA DATA stan-
dard
Ability to send and receive e-mail and data on the 
connected PC/PDA
Ability to connect to the Internet or intranet/LAN 
from the connected PC/PDA
Ability to manage the phone book from a PC
Exchange of business cards and calendar events with 
vCard/vCalendar compatible devices
Exchange of ring signals between compatible phones
Ability to attach a photo from a digital camera in out-
going e-mail
Connection via infrared
IrDA 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 
exchange data. For optimal performance, place the T610/
T612 within a metre and at an angle of 30 degrees to the 
infrared port on the PC/PDA, or other phone. An 
advantage of the necessary proximity of devices is 
reduced risk of transmitting data to other nearby devices. 
An infrared link is a serial connection, which means that 
data bits are sent one after another in a long stream. The 
IrDA–SIR Data Link Standard is a protocol that makes 
transmission of data faultless. The standard provides a 
high level of noise immunity, which means that the 
connection is not affected by fluorescent light, sunlight 
and electromagnetic fields – making it suitable for the 
modern office environment.
Connection via cable
The infrared connection is not always the best solution 
when connecting to a PC/PDA. Indeed, it is not always 
even possible. The DRS-11 cable provides the same 
connectivity between the phone and another unit.
The DRS-11 cable supports a subset of the signals in the 
RS-232 standard.
Chinese versions
This mobile phone comes in two different Chinese 
versions, the T610 for Hong Kong, Singapore, Malaysia 
and Taiwan, and the T612 for mainland China. The only 
difference between these Chinese versions is that they 
support different languages and input methods.
Both versions contain a Lunar calendar.
Both versions also support the predictive text input 
method T9™ Text Input. Predictive text input makes it 
fast and easy to write text messages. It works by search-
ing a word database to anticipate which word you are 
writing. You only have to press each key once, even if 
the letter you want is not the first letter on the key.