- Connect NO wire of Door Relay (White with Red stripe) to (+) wire of Door Lock
- Connect GND(-) wire to (-) wire of Door Lock.
Alarm Relay connection
- Connect COM wire of Alarm Relay (White) to +12V of Power Supply.
- Connect NO wire of Alarm Relay (Purple) to (+) wire of Alarm Device.
- Connect (-) wire of Alarm device to GND (-) of Power Supply.
It is strongly recommended to connect a reverse diode as shown above when wiring Door Lock or Alarm.
If you don‟t connect reverse diode, external noise appears then it causes some malfunctions such as
poor communication, unintended changes in system setting etc. Also if you connect the diode to contrary
polarity, the diode will be burnt due to high current, so must connect it in the correct direction. 1N4004 –
1N4007 or equivalent diode are included in the gift box.
24V Door Lock and Automatic Door Connection
When you control 24V door lock or automatic door, wire the door lock depending on Power Fail Safe or Power Fail
Secure. But separate power source must be applied and use external Relay in both Power Fail Secure and Power
Fail Safe door lock.
(Figure: 24V Door Lock and Automatic Door Connection)
If you don‟t use separate power source and external Relay for the 24V door lock, relay of LX505/LX505SR
may have damages and some malfunctions will appear.
