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What is the purpose of the End-of-Line termination for the iLight CAN bus network?

CAN bus is a high-speed method of data transfer where each differential pair of wires is a transmission line.

The end-of-line terminations for the iLight CAN bus network are to stop data reflections which cause false signals and therefore prevent devices being able to communicate correctly.

For iLight networks, the end-of-line termination is a 120Ω value resistor applied across the data pair (CAN-H and CAN-L), resulting in a resistance measurement of 60Ω (120/2) on the data line.