With the PELT you have everything in the box. In addition to the backup power supply for an emergency, it is also possible to control configuration and deletion functions via the PELT and this is extremely straightforward: First of all the PELT is connected to the door system via the chip key hanging on the data cable and a button is activated. Then the key to be configured is inserted. Combi codes from the key and keypad code are now configured via the keypad. If a key is lost, it can be deleted from the locking system later on with the assistance of the keypad code.