Operating Modes; Table 1: Overview Of Operating Modes - Siemens TC65 Hardware Interface Description

TC65 Hardware Interface Description
Strictly confidential / Draft
3.1

Operating Modes

The table below briefly summarizes the various operating modes referred to in the following
chapters.

Table 1: Overview of operating modes

Normal operation GSM / GPRS SLEEP
GSM IDLE
GSM TALK
GPRS IDLE
GPRS DATA
POWER DOWN Normal shutdown after sending the AT^SMSO command.
The Power Supply disconnects the supply voltage from the baseband part of
the circuit. Only a voltage regulator is active for powering the RTC. Software is
not active. Interfaces are not accessible.
Operating voltage (connected to BATT+) remains applied.
TC65_HD_V00.521
Various power save modes set with AT+CFUN
command.
Software is active to minimum extent. If the module was
registered to the GSM network in IDLE mode, it is
registered and paging with the BTS in SLEEP mode,
too. Power saving can be chosen at different levels:
The NON-CYCLIC
disables the AT interface. The CYCLIC SLEEP modes
AT+CFUN=7 and 9 alternatively activate and deactivate
the AT interfaces to allow permanent access to all AT
commands.
Software is active. Once registered to the GSM
network, paging with BTS is carried out. The module is
ready to send and receive.
Connection between two subscribers is in progress.
Power consumption depends on network coverage
individual settings, such as DTX off/on, FR/EFR/HR,
hopping sequences, antenna.
Module is ready for GPRS data transfer, but no data is
currently sent or received. Power consumption depends
on network settings and GPRS configuration (e.g.
multislot settings).
GPRS data transfer in progress. Power consumption
depends on network settings (e.g. power control level),
uplink / downlink data rates, GPRS configuration (e.g.
used multislot settings) and reduction of maximum
output power.
Page 22 of 99
s
SLEEP mode (AT+CFUN=0)
24.05.2005