Instructions

8
Power Supply for The System
A good power supply is very important to the stability of the keypad system. Make sure it can provide sufcient power
for the whole system especially the appliance taking heavy power to operate. Make sure no large voltage uctuation
when the appliance starts and stops operation if the keypad is supplied from the same power source.
Electric Spikes And Voltage Fluctuation
It is important to prevent the electric spikes feed-in to the keypad. Make sure the diode or MOV provided is connected
across the power input terminal of the electric lock, solenoid or motor. It may need a separate power supply for
the electronic devices (the keypad system) if the controlled device generates serious voltage uctuation and strong
electric spikes in starting or stopping operation.
8. OPERATING ELEMENTS
a) DA-2800 (OPTIONAL) -- SPLIT-DECODER WITH REMOTE CONTROL
RECEIVER
THE FRONT
CONNECTION
TERMINALS
INTERNAL SIREN &
DOOR CHIME
LINK-UP JUMPER
OFF --> ON --> OFF
CODE LEARNING
BUTTON
REMOTE
CONTROL SIGNAL
& STATUS
MAINS