18
Left row of pins
1
3
4
1
2
2
J1
J2
J3
U1
Right row of pins
1W.PWR
(FM3620 – pin6)
1
1W. Data
(FM3620 – pin3)
2
1
Vpp (+5 Volts DC) –
power source for
external digital
sensor
GND
(FM3620 – pin4)
3
2
Output from external
digital sensor
Digital Input
4
Figure 8. Digital thermometer DS1820 and TTJ100 connection scheme
Figure 9. I-Button DS1990A connection scheme
Note: Teltonika does not provide any additional equipment like panic
buttons, door sensors or others.