SELCO A/S M2500 Installation Manual
Revision: 23-04-2012 Page 27
6 Communication
6.1 CAN J1939 Bus
The M2500 can communicate directly with the engine ECU by CAN bus, SAE J1939 for a
maximum distance 250m.
6.1.1 CAN J1939 Connector:
Pin 1: CAN H
Pin 2: CAN L
Pin 3: CAN COM
The CAN J1939 is to be terminated on both ends with a 120Ω resistor.
6.1.2 CAN cable
Unshielded twisted pair 2 x 2 x 0,22... 2 x 2 x 0,5 (e.g. Lapp Kabel UNITRONIC®, BUS CAN
UL/CSA (CMX), part number 2170267).
One pair is to be used for CAN H and CAN L, one wire of the remaining pair is to be used for CAN
com.