F18 User Manual V1.0- 84 -This function can be set in the fingerprint machine option, Press Manukey, enter the Date Time. In the XX Month XX Date XX minute moveforward an hour, and that in the XX Month XX Date, XX Minute moveBack an hour.The operation refers to this manual 5.2 DLST .10.10 Master-slave function ★ OverviewIn order to reduce the repeated enrollment operation in multiple devices,we can use the master-slave option. It only needs to enroll userinformation in one master device; other slave units will sendsynchronization requests to the master according to set master-slaveparameters. The master unit sends its all user information andfingerprint template data to slave units when it has checked asynchronization request on the network. Slave units receive and save thedata from master. So the user enrolled in the master unit may recordattendance in multiple slave units. Operation1) Menu setupEnter "Menu - Communication option - Master-slave option", thereare four relevant options:Master unit: Whether set this device to be a master unit. Select “Y” ifyou want to.Slave unit: Whether set this device to be a slave unit. Select “Y” if youwant to.Master Server IP: Input the master server IP manually if you set thisdevice as a slave unit.Sync Each hour: The synchronization frequency after the connection --