Installation Instructions

Japanese Quality Audio only Intercom with a surface mount silver outdoor station with 4 buttons that call up to four residences where there is one or more hands free Inside Stations so an occupant may press a button to talk to the visitor like they're on a speaker phone or can use it like the old style press to talk - release to listen intercoms.

Two Gate/Door Buttons 

A lock button on each indoor station may be used to directly release an electric lock on a pedestrian gate or front door through the same two wires that connect the indoor and outdoor stations. A second button on each indoor station can directly open an automatic driveway gate or garage door, although this requires and extra two wires between the indoor station and the gate/door.

Extra Inside Stations with Room to Room Communication

Up to 4 extra inside stations can be added to each residence with 2 gate buttons each and a call button to ring all other hands free inside stations in a residence for communication between rooms.

Chime Volume Adjustment

The chime volume can be adjusted on each indoor station separately for the space its in or muted in case no-one wants to be disturbed. 

Power Requirements 

The handset requires 15VAC to 16VAC power, which comes from a transformer either next to the handset or away from the handset with a low voltage power cable run to it. The outdoor station requires no power connected as its power is passed through the 2 wires between the Indoor the Outdoor Stations along with everything else. One transformer can be used for one Master Indoor and Outdoor pair, up to four sub-stations and and electric lock up to 500mA if need be of separate transformers can be used if more economic to install.

The Lock Output

The output voltage from the lock output can be used to directly release (unlock) an electric lock that is 16VAC at a maximum 800mA or another lock. Other electric locks can be used with a suitable adaptor or the output can be made to operate an automatic gate ... READ MORE 

Includes

1 x DB-4DS four call button Outdoor Station. DB-1MD Master Hands Free Indoor Stations, DB-1SD Sub Hands Free Indoor Stations, transformers, extension chimes or an electric lock are chosen separately.

Wire Size verses Distance 

Wire Distance is the length of the wire measured between the transformer and the electric Lock. The wire distance between the transformer and DB-1MD Hands free inside station must be at least half this distance.  Wire distance from the first to the last inside station must be less than 100m and 0.6mm dia. or larger.

0.6mm dia. to 110m - 0.8mm dia. to 200m - 1.0mm dia. to 310m 

Note: If installing cable in the ground it must be in conduit and be a cable that is rated for use in the ground.  Multi-stranded security cable or figure 8 cable is NOT suitable in the ground it must have a polythene sheath and if the diameter of the cable is less than 0.8mm it must be filled with gel to stop it corroding. 

... more on Installing Low Voltage Cabling

Dimensions