Simons Voss Technologies VdS Block lock Manual page 40

VdS Block lock
4.4.3.5 Anti-tamper contact
(Manual)
Contact bridge
Ry
Rx
Rz
The device has a sabotage contact. In the normal state (cover closed) a
microswitch is pressed down and connects the terminals 8 and 9.
Connect the contacts 8 and 9 with a suitable evaluation. If the cover is
opened or the cable is cut, the contacts are open from the point of view of
the evaluation and you can react to the sabotage attempt.
The contact bridges are equipped ex works as follows:
Contact bridge
Rs
Ry
4. Initial operation
Layout
Wire jumper
Wire jumper
open, optional termination resistor
Layout
Open
Wire jumper
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