IP VarioBell
- installation and operating instructions
22
Code relay (COSW)
For the switch, the code relay function (
COSW
-CodeSwitch) is available.
In particular, it serves to
secure transmission of
information on switching
the electric lock. When
using this function, it is
not possible to activate
this lock by attaching or
disconnecting
the
voltage to the lock leads.
Activation
is
only
performed
when
the
serial information transmitted between the IP-Fermax doorphone and the code
relay board (COSW) is identical.
In the IP-Fermax doorphone you can set the Security code for the output
to activate the COSW code relay.
The code information is 8 bits, but the code entry is 4 bits with 4-bit security,
which is a total of 8 bits. Practically, this happens by activating the switch first by
transmitting the serial code and if it agrees, the code relay will connect the
electrical lock.
The code relay can be connected in parallel and thus extend the number
of switches, but you can never combine the electrical lock and the code
relay in parallel !!!
Use of door sensors
– exit button
Door sensors
can be connected to the IP-Fermax doorphone to a
maximum of two. It is used to retransmit information about the closed door. This
information is displayed on the Home screen (under the camera image) and also
transferred to UDVguard sw applications. Another option is to use SNMP.
The door sensor is either a part of the electric lock, or it is a common
magnetic contact used in the security technology. It is connected as an
NC
switch on the terminal block
(7)
- as well as the magnetic contact from the Alarm
(Door Closed = Closed).
Inputs for door sensors can also be used as
exit buttons
. The IP-Fermax
doorphone´s setting allows you to select which switch controls this input. The
NO button is connected to the input and when you press the exit button, the
switch is switched on in monostable mode for the switching time.
.
