NAVTELECOM SIGNAL S-2651, Operation Manual

Page: 17 / 36

1.8 Device interface connector
4
2
3
1
14
7
13
6
12
5
11
4
10
3
9 8
2 1
6 5 4
3 2 1
SP
K
+
M
IC
+
U
IN
6
U
IN
5
U
IN
4
O
U
T
4
O
U
T
3
O
U
T
2
O
U
T
1
RS
2
3
2
Tx
RS
485
A
(+
)
C
A
N
H
SP
K
-
M
IC
-
Lo
u
t
U
IN
3
U
IN
2
U
IN
1
iBU
T
G
N
D
+
Ug
RS
2
3
2
Rx
RS
485
B
(-
)
C
A
N
L
Figure 21. System connectors Microfit-14, Microfit-6, Microfit-4
Microfit-14 connector:
1 - Power “Plus” (+ U
G
)
2 – “Ground” (GND)
3 - 1-Wire Interface Line (iBUT)
4 - Universal input 1 (UIN1)
5 - Universal input 2 (UIN2)
6 - Universal input 3 (UIN3)
7 – Linear audio signal output of the “Autoinformer” function (LOUT).
8 – Output 1 "open collector" (OUT1)
9 – Output 2 "open collector" (OUT2)
10 - Output 3 "open collector" (OUT3)
11 - Output 4 "open collector" (OUT4)
12 - Universal input 4 (UIN4)
13 - Universal input 5 (UIN5)
14 - Universal input 6 (UIN6)
“Plus” of the main power U
6
should be connected via an external fuse.
“Ground” GND is connected to the "ground" of the car.
The universal inputs UIN1 - UIN6 can be set up as discrete, analog, counting or frequency. It allows to
connect to them a wide range of different sensors, for example, frequency (frequency from 1 Hz to 2000 Hz) and
analog (voltage from 0 V to 31 V) FLS, impulse fuel consumption sensors (DRL), buttons or switches.
Attention!
It is prohibited to apply a voltage more than 50 V to the device universal inputs, because it may lead to the
failure of the device.
Linear audio signal output L
OUT
is designed to connect a low-frequency amplifier with a minimum input
voltage of 0.5 - 0.7V to implement the "Autoinformer" function.
Attention!
To avoid interference, the GSM antenna of the device should be located as far as possible from the input
connector of the device, amplifier, speaker and from the wires connecting them.
Outputs OUT1-OUT4 «open collector» type are designed to control low-current loads up to 500 mA. When
activated, a negative signal ("Ground") is formed on these lines. Connection of external executive devices with a load
current higher than the maximum allowed should be made using additional switching relays. The relay type is selected
based on the requirements for the value of the switched current, voltage, and also depending on the power of the
connected device.
The interface line 1-Wire (iBUT) is used to connect the contact pads of TouchMemory keys, Proximity-card
readers and digital heat-sensing device.