FMA120 General description

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FMA120 is a tracking terminal with GNSS and GSM connectivity, which is able to collect device coordinates and transfer them via GSM network to a server. This device is perfectly suitable for applications, which require the location acquirement of remote objects. It is important to mention that FMA120 has additional inputs and outputs, which let you control and monitor other devices on remote objects. FMA120 also has a USB port for device status log output and entering configurations.

Package contents

The FMA120 device is supplied to the customer in a cardboard box containing all the equipment that is necessary for operation. The package contains:

  • FMA120 device;
  • Input and output power supply cable with 2x5 connection pins;
  • Micro USB cable;
  • 3.7 V 170 mAh rechargeable Li-ion battery.

Basic characteristics

GSM / GPRS features:

  • Quad band supported (GSM 850 / 900 / 1800 / 1900 MHz);
  • GPRS Multi-Slot Class 12(up to 240 kbps);
  • GPRS Mobile Station Class B;
  • SMS (text, data).


GNSS features:

  • Tracking: 33/ 99 acquisition channels;
  • Up to -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:

  • Cortex®-M3 processor;
  • 1 MB internal Flash memory;
  • Built-in accelerometer.
  • 170mAh Li-ion rechargeable 3,7V battery

Interface features:

  • Power supply: 10 ÷ 30V;
  • USB port;
  • 3 digital inputs;
  • 1 analog input;
  • 2 open collector digital outputs;
  • 1Wire® temperature sensor
  • 1Wire® iButton
  • LEDs indicating device status.


Special features:

  • Any element event triggers (external sensor, input, speed, temperature, etc.);
  • Highly configurable data acquisition and sending;
  • Multiple Geo-fence areas;
  • Sleep mode;
  • Deep sleep mode;
  • Configurable scenarios available;
  • Real-time process monitoring;
  • Authorized number list for remote access;
  • Firmware update over GPRS or USB port;
  • Configuration update over GPRS, SMS or USB port;
  • TCP/IP or UDP/IP protocol support;
  • 3500 record storing.


Template:FMB1 Supply voltage

Technical features

Part name Physical specification
Navigation indication LED
Modem indication LED
Socket 2x5 Tyco Micro MATE-N-LOK™ 4-794628-0 or similar
USB Mini USB socket
GNSS Internal GNSS antenna
GSM Internal GSM antenna
Technical details
2 W max.
Current consumption at 12 V
GPRS: average 120 mA rms
Nominal: average 65 mA rms
GNSS sleep: average 28 mA
Deep Sleep: average 5 mA²
Battery charge current Average 115 mA
Operating temperature (without battery) -40°C..+85 °C
Operating temperature (without battery) -40°C..+85 °C
Storage relative humidity 5..95% (no condensation)
Internal fuse 3A, 125V

Dimension drawing:

Fmb120 view dims.png


Technical information about internal battery


Internal back-up battery Battery voltage (V) Nominal capacity (mAh) Power (Wh) Charge temperature (°C) Discharge temperature (°C) Storage temperature (°C)
Li-ion rechargeable battery 3.75~3.90 170 0.64 – 0.66 0 to +45 -20 to +60 -20 to +45 for 1 month
-20 to +35 for 6 months

Batteries are covered by 6 month warranty support.

Bw nb.png CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Bw disposal.png 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.

Electrical characteristics

Characteristic description Value
Min. Typ. Max. Unit
Supply Voltage:
Supply Voltage (Recommended Operating Conditions) 5 30 V
Digital Input:
Input resistance (DIN1) 120 kOhm
Input resistance (DIN2, DIN3) 15 kOhm
Input Voltage (Recommended Operating Conditions) 0 Supply voltage V
Input Voltage threshold (DIN1) 7.5 V
Input Voltage threshold (DIN2, DIN3) 2.6 V
Digital Output (Open Drain grade):
Drain Current (Digital Output OFF) 120 uA
Drain Current (Digital Output ON, Recommended Operating Conditions) 300 mA
Static Drain-Source Resistance (Digital Output ON) 300 mOhm
Analog Input:
Input voltage (Recommended Operating Conditions), Range 1 0 10 V
Input resistance, Range 1 120 kOhm
Measurement error 4.4 %
Additional error ±26 mV
Input Voltage (Recommended Operating Conditions) Range2 0 30 V
Input resistance, Range2 146.7 kOhm
Measurement error 4 %
Additional error ±40 mV
Output Supply Voltage 1-Wire:³
Supply voltage 3.3 3.6 V
Output inner resistance 10 Ohm
Output current (Uout > 3.0 V) 30 mA
Short circuit current (Uout = 0) 130 mA
Bw nb.png Analog Input error margin can increase if temperature varies. If Analog input is not connected FMA120 will still measure certain numbers and it cannot be 0. This measurement is influenced by hardware components.

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 = 2mA) 36 V
Digital Input Voltage (Absolute Maximum Ratings) -32 32 V
Analog Input Voltage (Absolute Maximum Ratings) -32 32 V