4
Pinout
Pin number Pin name
Description
1
GND
(-)
Ground
2
CAN 1L
SAE J1939 CAN interface Low channel 1
3
1WIRE POWER
Power supply pin for Dallas 1-
Wire® devices
4
DIN4
Digital input, channel 4
5
DIN2
Digital input, channel 2
6
CAN 2L
SAE J1939 CAN interface Low channel 2
7
AIN2
Analog input, channel 2. Input range: 0-30V/0-
10V DC
8
DOUT3
Digital output. Open collector output
9
DOUT2
Digital output. Open collector output
10
AIN3
Analog input, channel 3. Input range: 0-30V/0-
10V DC
11
VCC
(+)
Power supply (10-30 V DC)
12
CAN 1H
SAE J1939 CAN interface High channel 1
13
1WIRE DATA
Data channel for Dallas 1-
Wire® devices
14
DIN3
Digital input, channel 3
15
IGN (DIN1)
Digital input, channel 1. DEDICATED FOR
IGNITION INPUT
16
CAN 2H
SAE J1939 CAN interface High channel 2
17
AIN1
Analog input, channel 1. Input range: 0-30V/0-
10V DC
18
DOUT4/AIN4
Digital output. Open collector output OR Analog
input, channel 4. Input range: 0-30V/0-10V DC
19
DOUT1
Digital output, channel 1. Open collector output
20
K-Line
K-LINE interface for online Tachograph Vehicle
Data transfer
Figure 2 FMM640 pinout