HEM8500 Engine CAN Monitoring Controller User Manual Page 41 of 45
12
CONNECTIONS OF CONTROLLER AND J1939 ENGINE
If CAN 1 needs to match 120Ω resistance, short connect outside CAN1 (H) and CAN1 120Ω, which
is short connect B14 and B5.
12.1
CUMMINS QSL9
It is suitable for CM850 engine control module.
Table 23 50-Pin Connector
Terminals of controller
50 pins connector
Remark
ECU Power
39
Starting Relay Output
-
Connected to starter coil directly.
Table 24 9-Pin Connector
Terminals of controller
9 pins connector
Remark
SAE J1939 shield-E
CAN communication shielding line;
CAN(H)
SAE J1939 signal-C
Using impedance 120Ω connecting line.
CAN(L)
SAE J1939 return-D
Using impedance 120Ω connecting line.
Engine type: Cummins-CM850.
12.2
CUMMINS QSX15-CM570
It is suitable for CM570 engine control module. Engine type is QSX15 etc.
Table 25 50-Pin Connector
Terminals of controller
50 pins connector
Remark
ECU Power
38
Injection switch;
Starting Relay Output
-
Connected to starter coil directly.
Table 26 9-Pin Connector
Terminals of controller
9 pins connector
Remark
SAE J1939 shield-E
CAN communication shielding line;
CAN(H)
SAE J1939 signal-C
Using impedance 120Ω connecting line.
CAN(L)
SAE J1939 return-D
Using impedance 120Ω connecting line.
Engine type: Cummins -CM570.