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DEAR ALL SENIORS I WANT A JUSTIFIED AND SATISFIED ANSWER FOR MY QUESTION ?

IN SCHEMATIC MANY PLACES SIGNAL SHOW #
HOW TO DECIDE THIS SIGNAL IS LOW OR HIGH
PLZ EXPLAIN ......
I AM NOT JUSTIFIED WHAT I AM DONE .... HIGH OR LOW

#, means active low . This signal is a active low when asserted .
Aap kis ko low kerogey ager vo high he nahi hoga . To aisey signals ko pul-up ker k high baneya jata hai , or jab # a low signal assert hota hai, means that particular line connected to ground .
The power button of a laptop is the best example for this . Which is pulled high by a high oham resister and when we press the power button it grounds the pulled high to a low signal .

#means it's low in working condition, it should be low when machine is in working condition
If it's high then it's s alarm for some error.