
Installation
17
NOTE
•
Install a diode at both sides of the door lock wire as shown in the figure to protect the relay from the reverse current, which
occurs when the door lock operates.
•
Take caution of the installation direction of the diode. Install the diode close to the door lock.
•
Use a separate power supply for FaceStation F2 and the door lock.
•
Suprema’s standalone intelligent readers contain internal relays that can directly lock/unlock doors without external
controllers for added convenience. For access control applications in need of security, however, it is NOT recommended to use
the internal relay of a reader to prevent any tampering attacks which can potentially trigger the door unlock. For such
applications, it is highly recommended to use a separate relay unit for a lock control such as Suprema's Secure I/O 2, DM-20
or CoreStation installed at a secure side of a door.
Automatic door connection
FaceStation F2
Automatic door
control device
Detection sensor
Door button
Door lock
1 - RLY NO
White
2 - RLY COM
Blue