What if there’s a gas explosion or another case that causes loss of connection between the system and the doors? Is it possible to open them manually in such cases?
If the door has no means of mechanical egress, for example, a maglock, then it is required to have a second form of egress that cuts power to the maglock, such as a normally-closed exit button. Maglocks naturally unlock when losing power. Electric strikes and locksets can be set up fail-safe or fail-secure.
What if there’s a gas explosion or another case that causes loss of connection between the system and the doors? Is it possible to open them manually in such cases?
If the door has no means of mechanical egress, for example, a maglock, then it is required to have a second form of egress that cuts power to the maglock, such as a normally-closed exit button. Maglocks naturally unlock when losing power. Electric strikes and locksets can be set up fail-safe or fail-secure.