From Wiki Knowledge Base | Teltonika GPS
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Main Page > Fleet management > FMB125 > FMB125 Manual > FMB125 Accessories
|Please order accessories separately as they are not included into device package.|
|Accessory and its description||Accessory connection schematic|
|Fuel tank sensors||Fuel sensor connection to FMB125|
|A fuel tank level sensor which indicates the approximate fuel level on the driver's indicator panel exists in most cars. If the sensor returns analogue signal proportional to fuel level it can be connected to FMB125 Analog input. After connection to the tank fuel level sensor a calibration is needed because most fuel tank sensors are not linear. Calibration is performed by measuring voltage values resulting from the volume of fuel in tank.|
|Alarm buttons, door sensors etc.||Panic button connection to FMB125|
|Alarm buttons, door sensors, ignition, etc. have two output states: high or low. FMB125 Digital inputs are used to detect these states.|
|Relays||Inverting relay connection to FMB125|
|In cases when sensor output signal is negative, an additional relay has to be installed to convert negative signal to positive.|
|Immobilizer relay||Immobilizer relay connection to FMB125 output|
|When connected as shown on the right hand side, FMB125 disables engine starter when output is ON.|
|Automotive relay||Automotive relay pinout|
|An ordinary automotive relay is used to invert input signal or to immobilize engine starter. Note that relays can be 12 V or 24 V capable.
|1-Wire devices||Digital thermometer DS1820 and TTJ100 connection to FMB125|
|One of the implemented features on FMB125 is 1-Wire® data protocol, which enables connection to devices such as thermometer (DS1820, DS18S20 and DS18B20) and I-Button DS1990A.
|TTJ sensor pinout|
|I-Button DS1990A connection to FMB125|