Simons Voss Technologies VdS Block lock Manual page 24

VdS Block lock
4.3.2.5 Block lock with PinCode keypad (4-eye principle)
(Manual)
Deactivation unit
with separate antenna
Structure
The old block lock in the door is shut down.

The existing PIN code keypad is retained.

The PIN code keypad closes a potential-free contact in the burglar

alarm system.
The separate antenna of the activation unit is separated by this

potential-free contact (blue wire) in the idle state.
Procedure
1. Employee 1 enters a valid PIN.
Potential-free contact closes and separate antenna is "connected"
9
to the activation unit.
2. Employee 2 switches on the alarm system with an authorised transpon-
der.
Activation unit sends deactivation command to deactivation units.
9
Deactivation units deactivate locking devices. It is no longer possible
9
to enter the secured area.
9 Activation master receives deactivation acknowledgements and
sends activation command to burglar alarm system.
9 Burglar alarm system activates the alarm system and acknowledges
activation.
Locking cylinder
External antennas
4. Initial operation
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Activation unit
with separate antenna
Burglar alarm
system
PIN code keypad
External antennas