Gate Triggering
The gatestation has 2 separate triggers used to opening/closing gates. Both gates can be triggered from
the handset. During a call the door lock button is pressed once to activate and under standby the buttons
must be pressed in for 3 seconds in order to trigger.
The contacts are located at the back of the intercom. Lock A is a 1amp pulse output of the 12V supply.
This is used to trigger strike locks such as used for pedestrian gates. If Lock A is used to trigger a
standard gate motor it is essential to use the supplied relay board as shown in the figure below.
Lock B is a 300mA dry contact which is normally open. Once the Lock B trigger is activated the pins of
Lock B will connect and make a short circuit and close. This connection can be connected directly to the
gate controller board of a gate motor. It is advisable to also use a relay board for trigger B to isolate the
gatestation from power surges etc. The connection is different as the power wires to the relay should be
connected in series with the trigger B contacts.
A standard receiver can also be connected on the gate controller board in parallel with the gatestation if
remotes are required.
Connection to a gate motor using DC power
There is
no required polarity
for the DC connections
although the relay board has polarity. If pin 1 is 0v and pin2
12v, so pin A will be 0V and pin C 12v when triggered.
Connect the relay board as shown with Pin A to the Neg (0V)
contact and Pin C to the Pos (12V) contact. The relay has a
LED light which will light-up when triggered. Connect the
Com and N.O. pins of the relay board to the Com and Trg pins
on the gate controller board.
Mounting of Caller Unit
The mounting bracket is removed by first unscrewing the 4 screw of the aluminum plate. Gently remove
the rubber keypad as shown in the figure below
Lock B
12 VDC
B
A
C
2
1
Intercom Door-station
Relay Board
COM
:.C.
:.O.
:EG
POS
Gate Controller Board
COM
TRG
Lock A
DC Connection