User manual

Mounting of door Unit

Select a location near your door entrance

where the surface is not too rough. We

recommend that you do some polishing to

get a plane surface or otherwise the unit

may not be able to mount properly.

It should be noted that the mounting bracket

is not installed on metal screening surfaces

nor in the vicinity of other electronic devices

that may reduce the operating range. Using

the supplied self tap screws, fix the

mounting bracket onto the wall.

Connect the terminals marked of the

12V DC power supply at the back of the

door unit. In addition, there are also

terminals marked and for

connecting to an electric door latch which

can be remotely opened by the handset.

When the DC power supply is connected,

the call button (1) will be illuminated. The

electric door latch opening feature will not

operate when using the backup alkaline

batteries so as to keep long battery life.

CAUTION: When using the 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 latch 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 (13) is pressed, this

voltage will drop to 0V temporarily for duration of time as specified by the

TRIGGER TIME function.

Always open

These two terminals normally provide 0V. During communication, once

the door lock opening button (13) is pressed, the terminals will provide a

12V supply temporarily for duration of time as specified by the TRIGGER

TIME function.

Under no circumstances should AC mains Voltage be directly connected to

the terminal blocks (8)!

Drilled holes

Insert the plugs into the holes

(for concrete wall only)