Installation manual

Models: db Nexus II, Nexus III Digitus Biometrics, Inc. 2011
Page 9 of 20
Fail Secure Locks (12V)
• A fail secure lock needs supplying with a 12V supply to open the lock.
• Connect the Ground Lead of the lock to the terminal labeled 0V.
• Connect the Live Lead of the lock to the terminal labeled Door Solenoid.
• Connect a link between Link and NC and a link between COM and 12V
Fail Safe Locks and Magnetic Locks (24V)
• A fail-safe or magnetic lock is permanently supplied with a 24V supply to keep the lock closed. The Digitus
controller does not supply a 24V output. To use a 24V lock a separate power supply will be required. Wire a 24V
Fail Safe lock as shown in the diagram: