After you get into the tower region in the Industrial District, start by dealing with the enemies on the balcony above. Since one of them is equipped with a gun, it is a good idea to use the disruptor, glue grenade or shock detonator. After you are done with them, destroy the first relay station.
Jump down to the very bottom and start fighting the second group of bandits, while keeping an eye on the actions of the ones with guns. Just like earlier, you need to destroy the relay station after you are done.
Return to the platform where you have fought for the first time and note that there are no discharges anymore, thanks to which you can reach the reinforced door. Open the door and hack into the control panel, using the Cryptographic sequencer, and determine the correct password (the screenshot).