Key to diagram: A30 Terminal F1.1 5 A fuse F1.2 25 A fuse MP Earth point T12 Main switch XT1 Terminal connector XT2 Implement connector, 9-pin (acc. to ISO standard) XV Power supply connector +30/P Potential, power plus +30/E Potential, electronics plus -31 Potential, power earth -32 Potential, electronics earth Electric System Liner 3000 with Communicator TIC 1b-2 Lin-01-el. 12/03 01b - Main power supply- Circuit diagram without „Basic tractor equipment“ retrofit kit (2-pin power supply socket)