Marmitek DOORPHONE 150 Modo De Empleo página 11

CAUTION: When using a DC supply, in case the electric door latch
does not function, reverse the polarity it is connected to and try
again.
The two most common types of electric door latches on the market
are either "always close" or "always open".
Always close
These two terminals normally provide a 12V supply. During
communication, once the door lock opening button
this voltage will drop to 0V temporarily for 3 seconds.
Always open
These two terminals normally provide 0V. During communication,
once the door lock opening button
provide a 12V supply temporarily for 3 seconds.
Under no circumstances should AC mains Voltage be directly
connected to the terminal blocks !
3. Now insert the 3 pcs AAA (UM-4) alkaline batteries into the
battery compartment as this can serve as a battery back-up in
case the 8 - 12V power supply fails.
4. Install the back of the Door Unit onto the mounting bracket
using the supplied tool.
5. The Door Unit is housed in a high impact ABS/PC cabinet which
can achieve the professional grade ruggedness required in most
outdoor applications. Rubber gaskets seal around all of the joints
to keep out dust, rain and snow, assuring years of reliable
operation even in harsh environments. The unit meets IP-54
standard and can operate from -20˚C to 50˚C.
DoorPhone 150
is pressed, the terminals will
TO DC SUPPLY
AND ELECTRIC
DOOR LOCK
is pressed,
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