
Tractor screen or universal terminal? CCI, Müller, Topcon, Reichhardt, Trimble and Ag Leader compared on UT, AUX-N and TC, plus retrofit.

Which ISOBUS plug fits which socket, the ratings of the rear and in-cab 9-pin connectors, the cable they take, and where to buy the parts.

What an ISOBUS implement ECU does, how it differs from a TECU, a terminal and a gateway, and what to decide before your ISOBUS project starts.

ISOBUS (ISO 11783) lets an implement use any tractor's plug, screen and buttons. What each part does and how to check if your tractor has it.

What the ISOBUS terminator (TBC) does, where it sits on tractor and implement, how to test it with a multimeter, and when you need a terminator plug.

Which plug is which on a tractor: the 3-pin power socket, 7-pin lighting, 7-pin signal (ISO 11786) and 9-pin ISOBUS, and what each one is for.

What an ISOBUS Class 1, 2 or 3 tractor sends to the implement: speed, PTO, hitch, lighting, and how Class 3 and TIM let the implement drive the tractor.

What the ISOBUS Task Controller records and controls: TC-BAS totals, TC-GEO maps, ISOXML task files, and what tractor and implement both need.

CAN bus, J1939 and ISOBUS in plain words: how the three layers stack, why a CAN bus tractor is not an ISOBUS tractor, and what it means for add-ons.

Running two ISOBUS implements at once: front and rear sockets, switching on the terminal, AUX-N buttons on two implements, and when a Y-cable works.