Quite a tricky start to a level, you need to drop off the slider below, but immediately upon doing so you’ll also want to latch back on to it so you’re hanging off of it (triggering the sensor beam). This means immediately after hanging off of the moving slider; you’ll also want to jump up and over to the left of the sensor beam so you’re passing back through it and bringing the slider back with you.
Go through the vertical teleporters on the ground floor, hit the switch, drop down the left-hand teleporters and then drop down the right-side of the sensor beam sending the slider into the newly-blocked off doors above the Patroller stationed over the nearby terminal.
Hack the terminal and time your run left with the Patroller turning around and going upwards again (otherwise it’ll spot you). Drop back down to the ground floor, flick the newly accessible switch, drop back down the far-left teleporter, drop down the left side of the sensor beam (bringing the slider back), drop back into the lower-left teleporter again and then drop down the right side of the slider.
Doing all of this in sequence will place the slider over the top of the central terminal, casting a shadow over it making it safe to approach and activate.
With all that done, run through the ground level to the right-hand side of the room, jump up to attract the attention of the Patroller, allow it to get a bit closer (so it continues to follow you); then drop down into the teleporters located in the bottom-right corner of the room.
You’ll reappear at the exit, so drop down and run over to the right-hand terminal first and hack it quickly (as the Patroller should still be looking away from you). From here you can either hack the middle terminal in safety of the shadows or; you can go collect the [Helix] above you (once you’ve followed the steps below).
If you don’t need or want the Helix, then you’ll want to hack the middle panel immediately after the previous one so you’re finished with it as the Patroller is coming back and turns to resettle itself above (allowing you to dash under it undetected and then drop into the teleporter to the open exit).