Sleep Modes; Gps Sleep Mode; Deep Sleep Mode - Teltonika FMB1YX User Manual

coordinate in these records remains the same (last known coordinate). All data is stored in flash
memory and later can be sent via GPRS.
GPRS and SMS settings are described in later sections. FMB1YX communicates with server
using special data protocol.
FMB1YX can be managed by SMS commands. SMS Command list is described in SMS/GPRS
COMMAND LIST section.
4.2

Sleep modes

There are three sleep modes: GPS sleep, Deep sleep and Online sleep mode.
4.2.1

GPS Sleep mode

FMB1YX is able to go to GPS sleep mode if such mode is enabled.
Sleep mode timeout (defined period in minutes) starts counting when device is in STOP
mode. After timeout is reached and all conditions for GPS sleep mode are met, device goes to
sleep mode. While in GPS sleep mode, FMB1YX turns GPS module off and it is still making new
periodic records. As a result power usage decreases, in turn saving vehicle battery.
FMB1YX can enter GPS sleep mode if ALL of these conditions are met:
 FMB1YX has to be configured to work in GPS Sleep mode and start sleep timeout is
reached;
 Device must be synchronized time with GNSS satellites and have GPS fix;
 No movement by configured movement source or movement sensor is detected;
 Ignition (configured Ignition Source) is off.
 Forced wakeup is not set;
 Have no SMS to read;
FMB1YX exits GPS sleep mode when if ONE of following conditions are true:
 Movement by movement source or movement sensor is detected;
 Ignition (configured Ignition Source) is turned on.
4.2.2

Deep Sleep mode

While in deep sleep mode, FMB1YX sets GNSS receiver to sleep mode and turns off
GSM/GPRS module (it is not possible to wake up device via SMS). Despite records with last
known coordinate are being saved and send to AVL server (GSM/GPRS module is turned on to
send data and after that it is turned off again), power usage is decreased to save vehicle's
battery. Note, that power saving depends on two configurable parameters: send period and min.
record saving period in "X on Stop Mode". When records are sendet in deep sleep mode, after
successful records sending open link timeout counter will be sciped and FMB1YX will enter deep
sleep mode immediately.
Because a lot off functions are disabled in deep sleep mode 13 I/O elements are disabled
from records that are generated in this mode: GSM Signal, GNSS Status, GNSS PDOP, GNSS
HDOP, Speed, GSM CellID, GSM Area Code, Fuel rate GPS, Active GSM Operator, Trip Odometer,
Total Odometer, Fuel Used GPS and ICCID.
FMB1YX can enter deep sleep mode if ALL of these conditions are met:
 FMB1YX has to be configured in Deep Sleep Mode and Sleep timeout is reached
 Device must be synchronized time with GNSS satellites and have GPS fix;
Module configuration can be performed only via SMS.
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