User's Manual

Cinterion
®
AGS2-E Hardware Interface Overview
3.1 Operating Modes
27
 AGS2-E_HIO_v00.021 2014-03-20
Confidential / Preliminary
Page 20 of 40
3.1 Operating Modes
The table below briefly summarizes the various operating modes referred to in the following
chapters.
See the following sections for the various options of waking up AGS2-E and proceeding from
one mode to another.
Table 7: Overview of operating modes
Normal operation GSM/GPRS SLEEP 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 sav-
ing can be chosen at different levels: The NON-CYCLIC
SLEEP mode (AT+CFUN=0) disables the AT interface. The
CYCLIC SLEEP modes AT+CFUN=7 and 9 alternatingly
activate and deactivate the AT interfaces to allow perma-
nent access to all AT commands.
GSM IDLE Software is active. Once registered to the GSM network,
paging with BTS is carried out. The module is ready to send
and receive.
GSM TALK Connection between two subscribers is in progress. Power
consumption depends on network coverage individual set-
tings, such as DTX off/on, FR/EFR/HR, hopping
sequences, antenna.
GPRS IDLE Module is ready for GPRS data transfer, but no data is cur-
rently sent or received. Power consumption depends on
network settings and GPRS configuration (e.g. multislot set-
tings).
GPRS DATA 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.
GNSS The GNSS NMEA data stream is internally routed to the
ASC0 interface, while the baseband processor in the idle or
active state. NMEA data streams are not available while the
base band processor is in the SLEEP mode.
Power Down Normal shutdown after sending the AT^SMSO command.
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.
Alarm mode Restricted operation launched by RTC alert function while the module is in Power
Down mode. Module will not be registered to GSM network. Limited number of AT
commands is accessible.