FMB641 General description
Teltonika FMB641 is an updated version of the current most popular GNSS, GSM terminal for PROFESSIONAL applications FMB640. Compared to FMB640 – FMB641 has a new processor that improves the device's computation power therefore it can be tailored to more specific use cases. Switchable CAN terminators that will allow you to use the device in a CAN network with numerous nodes. Lastly, it can be powered via USB for an easier configuration process. All the features that are supported by FMB640 are also supported by FMB641, for the purpose of maximizing your fleet efficiency with features like FMS CAN data (J1939), fuel CAN data (J1708), tachograph live data (K-Line), remote tachograph file download, various third party RS232 or RS485 devices support and Dual-SIM or eSIM compatibility. The terminal is suitable for applications like international logistics, refrigerated transport, agriculture, construction & mining, security & emergency services, and even more.
Package contents
Usually, the FMB640 device sample is supplied to the customer in a cardboard box containing all the equipment that is necessary for operation. The package contains:
- FMB640 device;
- 4 screws for assembling device
- GPS/GLONASS antenna
- GSM antenna
- USB cable
- Port 1/2 cable
- Ni-MH Rechargeable battery, 8.4V, 550 mA.
- Input and output power supply cable with 2x10 connection pins.
Basic characteristics
Cellular:
- GSM/GPRS technology
- 2G bands: Quad-band 800/850/900/1900 MHz
- GPRS Mobile Station Class B
- GPRS Multi-Slot class 12 (up to 240 kbps)
- SMS (text, data)
GNSS features:
- Tracking: 33/ 99 acquisition channels
- -165 dBM sensitivity
- Hot start <1s
- Warm Start < 25s
- Cold start < 35s
- NMEA-183 protocol
- GPS, GLONASS, GALILEO, BEIDOU, SBAS, QZSS, DGPS, AGPS
- Accuracy < 3m
Hardware features:
- NXP i.MX RT1064 processor;
- 2 MB internal Flash memory;
- External memory card slot;
- Built-in accelerometer;
- Built-in Bluetooth 3.0;
- Ni-Mh 550 mAh internal battery;
Interface features:
- Power supply: +8...+32 V;
- Integrated KLINE
- Dual CAN J1939
- J1708 CAN
- RS485 and 2x RS232 support
- 4 Digital Inputs for object status monitoring
- 4 Digital Open-collector Outputs (controlling external relays, LED, buzzers, etc.)
- 4 Analog Inputs
- 1-wire interface
- MicroSD card
- 2 status LED
- Dimensions: L(104,1mm)xW(76,8mm)xH(31,5mm)
- Configuration and firmware update (via FOTA and USB cable)
- External GSM antenna for higher sensitivity
- External GNSS antenna for higher sensitivity
Special features:
- Fast position fix;
- High Quality track even in high density urban canyon;
- Ultra small case;
- Ready for harsh environment;
- Easy to mount in limited access areas;
- Firmly fasten;
- 2 LED status indication;
- Real time tracking;
- Smart data acquisition based on:
- Time;
- Speed;
- Angle;
- Distance;
- Ignition or any other I/O event;
- Sending acquired data via GPRS;
- GPRS and SMS I/O events;
- Virtual odometer;
- Jamming detection;
- Configurable using Secured SMS Commands;
- 2x SIM card; 1x eSIM;
- Switchable CAN terminators
- Overvoltage protection (compatible with pulse 5b);
- Reverse polarity protection;
| Description | Voltage | Duration |
|---|---|---|
| Normal operation |
+10 ... +30 V |
Unlimited |
| Protection turns on, device turns off | 34 V | Unlimited |
| Maximum voltage | < 70 V | Unlimited |
| Maximum voltage impulse | 90 V | 5 ms |
Technical features
| Part name | Physical specification |
|---|---|
| Navigation indication | LED |
| Modem indication | LED |
| Socket | Soldered inner socket |
| USB | Mini USB socket |
| GNSS | External GNSS antenna |
| GSM | External GSM antenna |
| Technical details | |
|---|---|
| 2 W max. Current consumption at 12 V |
GPRS: average 67 mA rms Nominal: average 39 rms GNSS sleep: average 24 mA Deep Sleep: average 7,5 mA Online Deep Sleep: average 2,4 mA |
| 2 W max. Current consumption at 24 V |
GPRS: average 35 mA Nominal: average 20 mA GNSS sleep: average 12,5 mA Deep Sleep: average 3,8 mA Online Deep Sleep: average 1,3 mA |
| Battery charge current | Average 55 mA |
| Operating temperature (without battery) | -40..+85 |
| Storage temperature (without battery) | -40..+85 |
| Storage relative humidity | 5..95% (no condensation) |
| Device + case + battery weight | 197 g |
Dimension drawing:
Technical information about internal battery
| Internal back-up battery | Battery voltage (V) | Nominal Capacity (mAh) | Charging temperature (°C) |
|---|---|---|---|
| Ni-MH rechargeable battery | 8.4～10.0 | 550 | 0 – 45 |
Batteries are covered by 6 month warranty support.
 |
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. |
 |
Battery should not be disposed of into general household waste. Bring damaged or worn-out batteries to your local recycling center or dispose them into a battery recycle bin commonly found in supermarkets. |
Battery tests
The amount of time the device will work from internal battery depends on the battery health, how often the device saves/sends information to the server, external peripherals connected to the device and the results may also differ depending on firmware used.
For general comparison purpose, and to see what results can be achieved, you can refer to the following internal test results in different modes and sending frequencies:
| Mode: | Min Period (data saving frequency) | Send Period (data sending frequency) | Starting Voltage | Cut off Voltage | Time achieved |
|---|---|---|---|---|---|
| Operating | 10 seconds | 60 seconds | 10,1V | 8,3V | 471 min (7 hours 51 minutes) |
| Operating | 60 seconds | 60 seconds | 10,2V | 8,3V | 546 min (9 hours 16 minutes) |
| Deep Sleep | 12 hours | 12 hours | 10,0V | 8,2V | 15120 min (252 hours 0 minutes) |
| Online Deep Sleep | 12 hours | 12 hours | 10,2V | 8,6V | 6480 min (108 hours 0 minutes) |
Electrical characteristics
| Characteristic description | Value | |||
|---|---|---|---|---|
| Min. | Typ. | Max. | Unit | |
| Supply Voltage: | ||||
| Supply Voltage (Recommended Operating Conditions) |
+10 | +30 | V | |
| Digital Output (Open Drain grade): | ||||
| Drain current (Digital Output OFF) | 120 | µA | ||
| Drain current (Digital Output ON, Recommended Operating Conditions) |
0.5 | A | ||
| Static Drain-Source resistance (Digital Output ON) |
400 | 300 | mΩ | |
| Digital Input: | ||||
| Input resistance (DIN1) | 15 | kΩ | ||
| Input resistance (DIN2) | 15 | kΩ | ||
| Input resistance (DIN3) | 15 | kΩ | ||
| Input voltage (Recommended Operating Conditions) |
0 | Supply voltage | V | |
| Input Voltage threshold (DIN1) | 7.5 | V | ||
| Input Voltage threshold (DIN2, DIN3, DIN4) | 2.5 | V | ||
| Analog Input: | ||||
| Input voltage (Recommended Operating Conditions), Range 1 |
0 | +10 | V | |
| Input resistance, Range 1 | 120 | kΩ | ||
| Input voltage (Recommended Operating Conditions), Range 2 |
0 | +30 | V | |
| Input resistance, Range 2 | 147 | kΩ | ||
| Output Supply Voltage 1-Wire: | ||||
| Supply voltage | +4.5 | +4.7 | V | |
| Output inner resistance | 7 | Ω | ||
| Output current (Uout > 3.0 V) | 30 | mA | ||
| Short circuit current (Uout = 0) | 75 | mA | ||
| CAN Interface: | ||||
| Internal terminal resistors CAN bus | 120 | Ω | ||
| Differential input resistance | 19 | 30 | 52 | kΩ |
| Recessive output voltage | 2 | 2.5 | 3 | V |
| Differential input resistance | 0.5 | 0.7 | 0.9 | V |
| Common mode input voltage | -30 | 30 | V | |
| Power supply current (Hardware version with internal battery): | ||||
| Deep Sleep, average, Icc.ds | 2.5 | 4 | mA | |
| Sleep, average, Icc.ds, Vcc=10V | 45 | mA | ||
| Sleep, average, Icc.ds, Vcc=30V | 25 | mA | ||
| Ucc=12.6V, all modules fully working, internal battery is charging, Icc1 | 350 | mA | ||
| Ucc=12.6V, all modules fully working, internal battery is charging, Icc2 | 300 | mA | ||
| Ucc=25.2V, all modules fully working, internal battery is charging, Icc3 | 195 | mA | ||
| Ucc=25.2V, all modules fully working, internal battery is charging, Icc4 | 140 | mA | ||
| RS232/RS485 Input Voltage: | ||||
| RS485 input voltage range on A or B pin (common-mode voltage) | -7 | +12 | V | |
| RS232 input voltage range (common-mode voltage) | -15 | +15 | V | |
 |
Analog Input error margin can increase if temperature varies. |
Absolute maximum ratings
| Characteristic description | Value | |||
|---|---|---|---|---|
| Min. | Typ. | Max. | Unit | |
| Supply Voltage (Absolute Maximum Ratings) |
-32 | +32 | V | |
| Drain-Source clamp threshold voltage (Absolute Maximum Ratings), (Idrain = 2 mA) |
+36 | V | ||
| Digital Input Voltage (Absolute Maximum Ratings) |
-32 | +32 | V | |
| Analog Input Voltage (Absolute Maximum Ratings) |
-32 | +32 | V | |
| RS232 Input Voltage (Absolute Maximum Ratings) |
-25 | +25 | V | |
