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JP5, JP9, JP13, JP17, JP21, JP25, JP29 and JP14(CPU Board) are termination resistor connect.
Open or short these as needed.
About the MODE signal
The MODE signal is connected to the STB terminal of the CAN driver IC (TJA1044GT).
If not controlled by the port, changing the jumper pin to 2-3 short circuit will be fixed to Low, and it
can always be in the normal state.
Connection diagram
From CPU Port
From CPU Port
From CPU Port
From CPU Port
From CPU Port
From CPU Port
From CPU Port
R14
100K
JP4
2
1
3
U5
TJA1044GT
STB
8
Txd
1
Vcc
3
GND
2
Rxd
4
NC
5
CANL
6
CANH
7
C13
0.1uF
JP7
1
2
3
4
5
6
R16
1.5K
R13
60.4
JP6
1
2
3
4
5
6
R12
60.4
R10
100K
JP5
FFC-4BMEP1
1
2
3
4
C12
4700pF
DSUB1
5
9
4
8
3
7
2
6
1
F
G1
F
G2
VDD
VDD
VDD
VDD
CAN 0, 1, 2, 3, 4, 5, 6, 7 DSUB
Connector
Pin Number
Signal Name
1
N.C.
2
CANL
3
GND
4
N.C.
5
0.1uF
GND
6
N.C.
7
CANH
8
N.C.
9
N.C.
Termination resistor
JP5 : CAN 0
JP9 : CAN 1
JP13:CAN 2
JP17:CAN 3
JP21: CAN 4
JP25: CAN 5
JP29: CAN 6
JP14: CAN 7
(CPU Board)
1-2 Short
3-4 Short
120Ω
1-2 Open
3-4 Open
Non
