Motorola V series 60g, Руководство по обслуживанию

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Product Overview V. Series 60g
Product Overview
Motorola V. Series 60g telephones are the smallest and lightest global system for mobile
communications (GSM) general packet radio service (GPRS) wireless application
protocol (WAP)-enabled mobile phones currently available. The V. Series 60g incorpo-
rates a new user interface (UI) for easier operation, allows short message service
(SMS) text messaging, and includes personal information manager (PIM) function-
ality. It is a tri-band phone that allows roaming within the GSM 900 MHz, digital
cellular system (DCS) 1800 MHz, and personal communications services (PCS) 1900
MHz bands.
V. Series 60g telephones support GPRS and SMS in addition to traditional circuit
switched transport technologies. GPRS, where available, provides substantial
increases in mobile data communications performance and the efficient use of radio
spectrum. Data transmission rates for GSM networks can potentially increase from
the current rate of 9.6 kbps up to a theoretical maximum of 171.2 kbps. An increased
data rate is by no means the only benefit provided by GPRS. A key advantage is
the provision of a permanent virtual connection to the network. This “always on”
connection is possible because GPRS uses packet data transfer so that, for example,
email can be downloaded in “background mode.” There is no need for the user to re-
connect before requesting a service, eliminating connection set-up delays and
adding convenience and immediacy to data services access. The “virtual” nature of
this connection means that network resources are not consumed during periods
when a user is not actually sending or receiving data.
V. Series 60g telephones have a clam form factor. They feature an anodized aluminum
housing with titanium knuckles and have an externally viewable 96 x 16 pixel
display for caller identification and date/time, an internal 96 x 64 pixel display, and
the speaker located in the flip. At the top of the phone, on the right knuckle, the
service indicator (status light) changes color to show the phone’s state (incoming
call or message received, for example) at a glance. The bottom part of the clam (front
housing) contains the keypad, transceiver printed circuit board (PCB), microphone,
flex connection, external accessory connector, smart button, volume buttons, and
voice button. The standard 500 mAh Lithium Ion (Li Ion) battery fits behind a
removable anodized aluminum back cover.
The phone accepts both 3V and 5V mini subscriber identity module (SIM) cards
which fit into the SIM holder underneath the battery. The antenna is a fixed stub
type antenna. Inexpensive direct connection to a computer or handheld device via
RS232 or USB for data and fax calls, and for synchronizing phonebook entries with
TrueSync® software, can be accomplished by using the optional data cable and soft
modem.
Features
V. Series 60 g telephones use advanced, self-contained, sealed, custom integrated circuits
to perform the complex functions required for GSM GPRS communication. Aside
from the space and weight advantage, microcircuits enhance basic reliability,
simplify maintenance, and provide a wide variety of operational functions.
Features available in this family of telephones include:
• Lower voltage technology that provides increased standby and talk times.
• Supports 3V and 5V SIM cards.
• Extended GSM (EGSM) channels.
• Tri-coder/decoder (CODEC) that allows full rate, half rate, and enhanced full
rate modes of transmission.