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Using Codoor; Access; Leaving The Premises; Automatic Resetting - Siemens Codoor CD3500 Installation & User Manual

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CD3500 & CD4000 Installation and User manual

Using Codoor


Enter any of the programmed codes (without pressing ) and
without touching the door handle. At each key press, an audible
signal is sounded (if the buzzer is enabled) and the red LED on
the keypad flashes once.
A click sound confirms that the code has been correctly entered.
The door must be opened within 4 seconds.

Leaving the premises

Codoor's mechanical locking device only affects the outside door
handle. The door can always be opened from the inside as usual.

Automatic resetting

Codoor has two separate resetting systems to return the lock to the
locked position after a code has been entered.
Mechanical: the lock is reset each time the door handle is used
during access.
Electronically: the lock is reset if the handle is not used within 4
seconds of a code being entered.
This provides security against unauthorised access, since Codoor
can never be left in the unlocked position. However, it is important
to remember that Codoor should not be left in the deactivated mode
(see section Deactivation function).

Access blocking

To thwart attempts to obtain an access code by trial and error,
Codoor incorporates a blocking function to disable the unit after 16
false key presses (four successive incorrect 4-digit codes). The unit
remains blocked until 2 correct codes are entered successively. This
means that further instructions to users are not required.



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Codoor cd4000

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