Service Manual
Operating Lights marLED® E3, E9, E9i, E15, battery and
marLED® E3 on ceiling tube Ø 110 mm
38 Revision 2
6.1.13 Bus Coupler Connection Board Pin Assignment
A bus coupler establishes an electrically isolated connection between 2 CAN bus users.
The above diagram shows the pin assignments for bus coupler 1. The signal assignments for coupler 2 and
coupler 3 are depicted to the right of the diagram.