4101-2 Controller Installation Handbook
2-4
Door hardware
The access control system is completed by electric door locks and
sensors. Remarks here are confined to general observations.
Door locks must be carefully chosen to match the requirement and
the door structure itself. They are usually the only moving parts in
the whole system. Some designs of lock remain locked when the
power or the system fails (“fail secure”) and other designs unlock
when the power or the system fails (“fail safe”). It is very important to
ensure that the requirements of fire safety and the rules of the local
fire safety authority are taken into account.
Sensors can be used to show if a door is open or closed. They can
also be used to monitor almost any other part of a building or its
installed equipment to provide status information on the security of
the building or anything else.
To Next Page
Loading...
Need help?
General