Operating instructions
Manual – LDB 1.5 
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Choose Edit > Properties. Click on the Configuration tab and check the Flip-flop box. 
Confirm with OK and approve the Lock System. Program the digital control unit. 
4.4  Digital control unit as time switch 
You can program the US Lock so that the lock unlocks at a particular time without a 
transponder being pressed, and re-locks again at another set time. In this mode it 
functions like a time switch. 
For example, the lock under consideration protects the lobby door. You can configure 
this lock so that it unlocks at 8:00 am when the business opens and re-locks at 5:00 
pm when the business closes. Between 5:00 pm and 8:00 am, authorized user can 
gain access by using their transponders. 
This feature only works with Access Control versions. 
Select Time zone plans and Organize time zone plans. Click on New... and 
allocate a name to the new time zone plan. 










