Found a network (Cat53) cable with the following wiring at the jacks:
END-1
brown/brown-white/orange/orange-white/blue/green-white/blue-white/green
END-2
blue/orange-white/orange/blue-white/green-white/green/brown/brown-white
the jacks are wired well, and it looks like someone did this intentionally, jacks are so neat, it looks machine made.
What’s it for??? (curiosity only – thus the low points – sorry!)