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.

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;

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.


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:FMB Supply voltage

Technical features

Part name Physical specification
Navigation indication LED
Modem indication LED
Socket Soldered inner socket
USB Micro USB socket
GNSS Internal GNSS antenna
GSM Internal GSM antenna
Technical details
2 W max.
Current consumption at 12 V
GPRS: average 69.15 mA rms
Nominal: average 35.23 mA rms
GNSS sleep: average 19.72 mA
Deep Sleep: average 7.35 mA
Online Deep Sleep: average 10.96 mA
Ultra Deep Sleep: average 5.69 mA
Battery charge current Average 140 mA
Operating temperature -25..+55 °C
Storage temperature -40..+70 °C
Storage relative humidity 5..95% (no condensation)
Device + case + battery weight 55 g

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)
+10 +30 V
Digital Output (Open Drain grade):
Drain current (Digital Output OFF) 120 µA
Drain current
(Digital Output ON, Recommended Operating Conditions)
0.1 0.5 A
Static Drain-Source resistance
(Digital Output ON)
400 600
Digital Input:
Input resistance (DIN1) 47
Input resistance (DIN2) 51.7
Input resistance (DIN3) 47
Input voltage
(Recommended Operating Conditions)
0 Supply voltage V
Input Voltage threshold (DIN1) 7.5 V
Input Voltage threshold (DIN2) 2.5 V
Input Voltage threshold (DIN3) 2.5 V
Analog Input:
Input voltage
(Recommended Operating Conditions), Range 1
0 +10 V
Input resistance, Range 1 150
Measurement error on 12V, Range 1 3 %
Additional error on 12 V, Range 1 360 mV
Measurement error on 30 V, Range 1 3 %
Additional error on 30 V, Range 1 900 mV
Input Voltage
(Recommended Operating Conditions), Range 2
0 +30 V
Input resistance, Range 2 150
Measurement error on 12V, Range 2 3 %
Additional error on 12 V, Range 2 360 mV
Measurement error on 30 V, Range 2 3 %
Additional error on 30 V, Range 2 900 mV
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
Ground sense:
Input resistance 38.45
Input voltage
(Recommended operating conditions)
0 Supply voltage V
Input voltage threshold 0.5 V
Sink current 180 nA


CAN interface:
Internal terminal resistor CAN bus
(no internal termination resistor)
- - - Ω
Differential input resistance 19 30 52
Recessive output voltage 2 2.5 3 V
Differential receiver threshold Voltage 0.5 0.7 0.9 V
Common mode input voltage -30 - 30 V


Alert.png
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