Assa Abloy effeff 843G Notice De Montage page 28

Toggle mode
In Toggle mode, the system switches between locking and unlocking if a short
voltage pulse is applied on a control lead.
Operation with control via two separate connection wires
Unlocking and locking can take place via two separate leads.
Monitoring sensors
Door and bolt statuses can be monitored electrically and used as a signal
generator for an alarm system or EAC system.
EN
28 Functions