Use shielded twisted cable.
End resistor R = 120 Ohm.
The terminating resistor at the engine side might not be needed, refer to the engine manufac-
turer’s literature.
5.3.5 Cummins GCS (option H6)
Use shielded twisted cable.
The RS-485 Modbus lines need end resistors (end terminators) when the bus length exceeds 30
m. However, that is not the case here, as this communication line never exceeds 30 m.
Cable: Belden 3105A or equivalent. 22 AWG (0.6 mm
2
) twisted pair, shielded, <40 mΏ/m, min.
95 % shield coverage.
AGC-3 installation instructions 4189340728
UK
Wirings
DEIF A/S Page 59 of 65