![background image](http://html1.mh-extra.com/html/aim/ecumaster-emu-black/ecumaster-emu-black_user-manual_2871722003.webp)
2
3
Wiring connection
Below, the connectors pinouts are represented for both EMU Classic and EMU Black
3.1
EMU Classic
EMU Classic ECU features serial communication protocol on EMU extension port (ECU rear side) whose
pinout is shown below with the connection table.
Please note
: with serial communication protocol it is mandatory to connect ECU GND with AiM device
GND as well as ECU TXD is to be connected to AiM ECU RS232 TX (or AiM RS232RX for older products)
and vice versa.