7
Interfaces and Protocols
7.1
J1939
Cummins ISB/ISBE
Terminals of
controller
Connector B
Remark
Fuel relay output
39
Start relay output
-
Connect with starter coil directly
Auxiliary output port
1
Expand 30A relay,
battery voltage of 01,
07, 12, 13 is supplied
by relay
ECU power Set Auxiliary output 1 as “ECU power”
Terminals of controller
9 pins connector
Remark
CAN GND
SAE J1939 shield
CAN communication shielding line(connect with ECU terminal only)
CAN(H)
SAE J1939 signal
Impedance 120 Ω connecting line is recommended.
CAN(L)
SAE J1939 return
Impedance 120 Ω connecting line is recommended.
Cummins QSL9 / CM850 engine control module
Terminals of
controller
50 pins connector
Remark
Fuel relay output
39
Start relay output
-
Connect to starter coil directly
Terminals of controller
9 pins connector
Remark
CAN GND
SAE J1939 shield-E
CAN communication shielding line(connect with ECU terminal only)
CAN(H)
SAE J1939 signal-C
Impedance 120 Ω connecting line is recommended.
CAN(L)
SAE J1939 return-D
Impedance 120 Ω connecting line is recommended.
Cummins QSM 11 (Import) / CM570 engine control module
Terminals of
controller
C1 connector
Remark
Fuel relay output
5&8
Outside expand relay, when fuel output, making port 5 and port 8 of C1
be connected
Start relay output
-
Connect to starter coil directly
Terminals of controller
3 pins data link
connector
Remark
CAN GND
C
CAN communication shielding line(connect with ECU terminal only)
CAN(H)
A
Impedance 120 Ω connecting line is recommended.
CAN(L)
B
Impedance 120 Ω connecting line is recommended.
73
easYgen-400
B37884A
7 Interfaces and Protocols
7.1 J1939
Released