IND (BUT)
Communication state indicator through an external headset, the dispatcher call
button is used when using the
Naviset HF-1 handsfree
GND
Common power wire, minus
Input universal circuits are designed to connect analog, pulse, discrete sensors. All inputs IN1
... IN8 are completely universal, and each of them can perform the following functions (configured by
the user):
1.
Analog input, voltage measurement 0-36В – voltage measurement at the input and
converting to digital form through a 10-bit AD converter. Measurement range is from 0 to 36V. The
value is transferred in volts with a fractional part in multiples of 0.1V
2.
Pulse input, accumulation of the amount of pulses - When a positive pulse appears at
the input, the pulse counter is increased by 1 unit. When the sum of 65,535 is reached, the counter is
reset to zero and the count starts afresh. The counter value is transmitted explicitly.
3.
Pulse ++ input (increment) - works in conjunction with the pulse - - input (decrement).
When the pulse arrives at the incrementing (++) input, the counter value increases, at the
decrementing(- -), the input decreases. Thus, a clear counter value is always equal to the difference
between the impulses of the ++ input and the - - input.
4.
Pulse - - (decrement) - works in conjunction with the pulse + + input (increment). When
the pulse arrives at the incrementing (++) input, the counter value increases, at the decrementing(- -),
the input decreases. Thus, a clear counter value is always equal to the difference between the
impulses of the ++ input and the - - input.
5.
Engine hour indicator – the input function is designed to count the car engine running
time (running time of the vehicle and to count the driver's working time). When an input voltage is
positive, the counter increases by 1 unit every second. When the sum of 65,535 is reached, the counter
is reset to zero and the count starts afresh. The counter value is transmitted explicitly.
6.
Discrete input actuates in a predetermined voltage range - this feature is available for all
inputs. To select an active or passive level, the logic of processing and the crossing line is set in the
configurator. See the "Device Configuration" section.
Connection to any of the inputs is made regarding the common GND contact. Buttons, reed
switches, circuit breakers and other passive sensors are connected to the device regarding the input
voltage (via pull-up resistor). For active devices such as fuel sensors and others, the additional supply
voltage is needed, before connecting such sensors please read the instructions for each of them.
Naviset GT-20 has two SIM cards holder, one is located on the processor board inside the
device, and the second one is available on the front panel.
5.4. NAVISET GT-20 INDICATION DESCRIPTION
All indicators on the front panel of the device have the same glow. A name of the signal is
located next to the indicator. You can determine the state of any unit by time and frequency of the
glow in accordance with the following table of the mode states.
POWER INDICATOR
Description of modes
Is constantly on
Normal working mode of the device
Flashes once per second
Battery is being charged
Flashes 2 times per second
Battery is not connected
