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If the rods are parallel then it is safe to pass or there is no problem.
After Kim Ji-won gives you the Blue Keycard, You have to go to the Earth Science Lab (Geography Room), note the London (Greenwich) time and read the World Time document in order to set the other clocks properly. Set the Clock times probably according to Greenwich GMT time, Beijing +8 (Clock in ?? Room), Moscow +3 (Clock in ?? Room), and Washington -3 (Clock in ?? Room), accordingly, after that the cabin will unlock and you can get it.
In Korean ver, This document ( Chaotic / 제부경 ) is expressed metaphorically about the way to acquire of the L-Rods.