TELTONIKA FMB640 Wiki Knowledge Base Instructions

June 26, 2024
teltonika

FMB640 Wiki Knowledge Base

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Product Information

Specifications

  • Sleep Modes: GPS sleep, Deep sleep, Online Deep sleep

  • Power Usage: Decreases in sleep modes to save vehicle
    battery

  • Time Synchronization: Required for entering sleep modes

Product Usage Instructions

GPS Sleep Mode

FMB640 can enter GPS sleep mode when enabled. The device turns
off the GPS module and creates new periodic records to save power.
To enter GPS sleep mode, the following conditions must be met:

  • Device configured for GPS Sleep mode with sleep timeout
    reached

  • Device time synchronized with GPS satellites

Deep Sleep Mode

In deep sleep mode, the GNSS receiver is set to sleep mode, and
the GSM/GPRS module is turned off. The device saves the last known
coordinates and decreases power usage. To enter deep sleep mode,
ensure the following conditions are met:

  • Device configured in Deep Sleep mode with sleep timeout
    reached

  • Device time synchronized with GPS satellites

Online Deep Sleep Mode

In this mode, the device functions like deep sleep mode but
maintains connection to the GSM network, increasing power
consumption. The device can still send/receive SMS and make/accept
calls without closing the GPRS context. To enter online deep sleep
mode, meet the same conditions as for deep sleep mode.

FAQ

Q: How do I exit Online Deep Sleep mode on FMB640?

A: FMB640 exits online sleep mode if movement by accelerometer
or configured movement source is detected, or if the ignition
(configured ignition source) is turned on.

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https://wiki.teltonika-gps.com/view/FMB640_Sleep_modes
FMB640 Sleep modes
Main Page > EOL Products > FMB640 > FMB640 Manual > FMB640 Sleep modes
There are three sleep modes: GPS sleep, Deep sleep and Online Deep sleep mode.
Contents
1 Video Demonstration 2 GPS Sleep mode 3 Deep Sleep mode 4 Online Deep Sleep mode
Video Demonstration
Here is a visual demonstration of the sleep modes and how they they affect the device.
GPS Sleep mode
FMB640 is able to go into GPS sleep mode if such mode is enabled. Sleep mode timeout starts counting when the device is in STOP mode. After timeout is reached and all conditions for GPS sleep mode are met, the device goes into sleep mode.
When in GPS sleep mode, FMB640 turns the GPS module off and continues making new periodic records. As a result power usage decreases, in turn saving vehicle battery. FMB640 will enter GPS sleep mode if ALL of these conditions are met:
FMB640 is configured to work in GPS Sleep mode and sleep timeout is reached; Device time must be synchronized with GPS satellites. From Firmware 03.18.15 version, this condition depends on the “Records saving/sending without TS” parameter:
After Position Fix – FMB640 time is synchronized with GNSS satellites and GPS fix is

obtained; After Time Sync – FMB640 time is synchronized over NTP, NITZ, or GNSS satellites; Always – FMB640 will enter sleep mode without time synchronization and GPS fix.
Movement is not detected by the accelerometer and configured movement source; Ignition (configured ignition source) is off; There are no SMS messages being received. On Firmware version older than 03.18.15, the device time has to be synchronized with GNSS satellites and GPS fix has to be obtained in order for the device to enter GPS Sleep mode. USB is not connected. FMB640 exits GPS sleep mode if ONE of following conditions is true: Movement by accelerometer or configured movement source is detected; Ignition (configured ignition source) is turned on.
Deep Sleep mode
While in deep sleep mode, FMB640 sets the GNSS receiver to sleep mode and turns off GSM/GPRS module (hence it is not possible to wake up the device via SMS). Despite records with the last known coordinate being saved and sent to the AVL server (GSM/GPRS module is turned on to send data and then it is turned off), power usage is decreased to save the vehicle’s battery.
Please note that power saving depends on two configurable parameters: Send Period and Minimum Record Saving Period in “X on Stop Mode”. When records are sent successfully in deep sleep mode, open link timeout counter will be skipped and FMB640 will enter deep sleep mode immediately. Because a lot of functions are disabled in deep sleep mode following I/O elements are disabled from records that are generated in this mode: GSM Signal, GNSS Status, GNSS PDOP, GNSS HDOP, GSM CellID, GSM Area Code, Active GSM Operator, Trip Odometer, Total Odometer, Speed, Fuel Rate GPS, Fuel Used GPS and ICCID. FMB640 can enter deep sleep mode if ALL of these conditions are met:
FMB640 is configured in Deep Sleep mode and sleep timeout is reached; Device time must be synchronized with GPS satellites. From Firmware 03.18.15 version, this condition depends on the “Records saving/sending without TS” parameter:
After Position Fix – FMB640 time is synchronized with GNSS satellites and GPS fix is obtained; After Time Sync – FMB640 time is synchronized over NTP, NITZ, or GNSS satellites;

Always – FMB640 will enter sleep mode without time synchronization and GPS fix.
Ignition (configured ignition source) is off; Movement is not detected by the accelerometer or configured movement source; Min. Record Saving Period (Data Acquisition Mode settings) must be larger than Open Link Timeout parameter, so that FMB640 could close GPRS link; The difference between Send Period (Data Acquisition Mode settings) and Open Link Timeout must be more than 90 seconds, so that FMB640 could close GPRS link within at least 90 seconds; There are no SMS messages being received; Data socket(s) are closed; Data sending is not in progress; FOTA is not in progress. On Firmware version older than 03.18.15, the device time has to be synchronized with GNSS satellites and GPS fix has to be obtained in order for the device to enter Deep Sleep mode. USB is not connected. FMB640 exits deep sleep mode if ONE of following conditions is true: Movement by accelerometer or configured movement source is detected; Ignition (configured ignition source) is turned on.
Online Deep Sleep mode
In this mode, the device works as in deep sleep mode, but without deregistering from the GSM network. GSM part stays powered so this increases power consumption. In this mode, the device should send/receive SMS and make/accept calls. It does not close the GPRS context if one was previously opened.
Conditions to enter online deep sleep mode are the same as entering deep sleep mode. FMB640 exits online sleep mode if ONE of following conditions is true:
Movement by accelerometer or configured movement source is detected; Ignition (configured ignition source) is turned on.

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