and thanks for bothering with my problem.
I have a two signals A and B that I want to route using several alternative paths via jumpers on my board. In one of the occasions I need to use the same input pin of an IC. Rest assured, when signal A goes to the IC pin, signal B goes to a different place. Please see the image attached: The trace between the jumper pad and the IC pin is about 24 mm long. My question is, do I need some kind of termination for these traces in order to prevent reflections from the end that is not used at the moment?
The signals are about 3 V in amplitude, with rise/fall time about 0.7 ns, and are between 5 and 15 ns long.
ps. image annotation added