Contec CONPROSYS CPS-CNT-3202I Reference Manual page 39

Unlock the hook with a slotted screwdriver
There are two ways to unlock the hook using a slotted screwdriver.
Unlock it by one of the following.
Using the screwdriver as leverage

Insert a slotted screwdriver (the point should be smaller than 4.5mm) into a hole.
(see the figure below)
By using the screwdriver as leverage, move it downward in the direction of the arrow to unlock.
By rotating the screwdriver

Place the slotted screwdriver (the point should be smaller than 8mm) as shown in the figure.
Rotate the screwdriver 90-degree in either direction.
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Installation
CPS-CNT-3202I Reference Manual (Hardware)
A projection tip to support the driver
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