Master keying presents two security drawbacks:.From a security point of view, master keying isundesirable but from a practical point of view,however it is necessary.Above keys will not open the lock when theGuest has Double Locked it from inside.The security advantage of the key-cards hasmade it popular and many medium and largesized hotels are adopting this key-card system.This dramatically cuts down ontheft from the rooms by hotel employees. One of the best security features is the ability ofthe computer to investigate each door lock andget a printout of everyone who accessed aparticular room.
Master keys can be changed in a matter of a fewkeystrokes and lost key-cards are easilyremoved from the system.Key-card control is computer-based andtherefore creates the necessary audit trailautomatically. Key-cards have the capability of being randomlycoded at the point of registration, which re-emphasizes the guest perception of roomsecurity.The key card is used by presenting it to a cardreader swiping or inserting of magnetic stripecards, merely being brought into close proximityto a sensor.There are several popular type of key cards inuse and include the mechanical hole card, barcode card, magnetic stripe card, smart card(embedded with a read / write electronicmicrochip), and RFID proximity cards.It is normally a flat, rectangular piece ofplastic and may also serve as an ID card.A key card, while not actually considered akey, is a plastic card which stores a digitalsignature that is used with electronicaccess control locks.Metal room keys are being replaced byelectronically coded key-cards.If the guest room lock is in shut-out modethe guest room key can neither open it norlock from outside of the room.The hotel guest room key is normallyissued to open only one room for which itwas intended, viz.Housekeeping Staff Master KeyKey operates all rooms serviced byparticularroom maid or housekeeping staff. Floor Supervisors Master KeyKey operates all sections on the floor/ floorssupervised by the particular supervisor.3. Grand Master KeyKey operates all locks in the Hotel. Depending upon the need,the master key may be further established asa housekeeping staff master key, a floorsupervisor master key, and a grand masterkey for management purpose.ġ. A master key opens all guestrooms that arenot double locked.Larger organizations, with more complex"grandmaster key" systems, may have severalmaster key systems where the top levelgrandmaster key works in all of the locks inthe system.A far more secure (and more expensive) system has twocylinders in each lock, one for the change key and one for themaster key.For example, master keyed pin tumbler locks will have twoshear points at each pin position, one for the change key andone for the master key.Locks which have master keys have a second set of themechanism used to open them which is identical to all of theothers in the set of locks.These locks also have keys which are specific to each one(the change key) and cannot open any of the others in theset.A master key is designed to open a set of several locks.These keys open all guestroom that are not double-locked.
The keys should not be used on day-to-day basis.The log should be dated and signed by the individualtaking the key.One procedure for emergency keys is to have themlocked in hotel safe, a safe deposit box or a metal cabinetand signed out by the individual needing one.The emergency key should be highly protected and itsuse strictly controlled and recorded it should never leavethe property.It can be used, for example,to enter a room when the guest needs help and is unable toreach or open the door. The emergency key opens all guestroom doors, evenwhen they are double locked.The blade is usually designed to open onespecific lock, although master keys aredesigned to open sets of similar locks.The bow, which is left protruding so thattorque can be applied by the user to open thedoor.The blade, which slides into the keyhole tounlock the door.A key is a device which is used to open alock.
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