WARNINGS AND NOTES:
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NEVER DISCONNECT ANY CONNECTOR FROM DASH7 WHEN POWER SUPPLY IS ON !
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ALWAYS USE 3 Amp (max 5 Amp) fuse for +12V power supply of Dash7 !
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Locate fuse as close as possible to the main switch (or ignition switch).
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MAKE SURE YOUR GROUNDING IS PROPERLY CONNECTED !
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MAKE SURE ALL CONNECTORS ARE CONNECTED PROPERLY AND LOCKED.
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If possible, always use screws to lock RS232 connector.
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Make sure, you ECU is not „password protected“. If yes, it don’t send any data through the serial
connector (RS232). Your ECU must be „not password protected“ for working with Dash7
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Power supply pins are overvoltage and polarity protected, but we strongly recommend to check all
connections and pinout before turning the power supply ON.
Full connection of DASH7
Full connection means a base connection of Dash7, plus connection of additional inputs.
Inputs
Dash7 can not only visualize data from ECU, but also from its own analog and digital inputs. 0-5V inputs are
unprotected and they tolerate
MAXIMUM OF 5 VOLTS !
Higher voltage can damage input or main processor of
Dash7, so be very careful when connecting there inputs. Always use 5V supply from Dash7 if possible. Overvoltage
damage is not covered by factory warranty!
ANALOG INPUTS (FOR 0-5V SENSORS):
Fuel level sensor (3 wires version - potentiometer):
Pin C1: Input signal from Fuel Level Sensor
(use 5V and GND supply from Dash7)
Pin A1: +5V
sensors power supply
(use Pin A8 for Sn2106 or older)
Pin A3: Sensors GND
NOTE: If your sensor has only 2 wires, connect one wire to the Sensors GND (pin A3), another wire to the analog
input (pin C1) and use pull-up resistor b5V (pin A1) and signal (pin C1). Resistor value must be calculated
and depending on the sensor’s resistance (usually must be more than 1000 Ohm).