Marmitek DP150 User Manual page 11

Always close
These two terminals normally provide a 12V supply. During
communication, once the door lock opening button
voltage will drop to 0V temporarily for 15 seconds.
Always open
These two terminals normally provide 0V. During communication, once
the door lock opening button
12V supply temporarily for 15 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 provide a
TO DC SUPPLY
AND ELECTRIC
DOOR LOCK
is pressed, this
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