User's Manual

Onity HT24W / HT28 Smart Hardware • 79
access, the card must have the proper site code, any applicable
authorization, and be within the activation and expiration dates.
• Selective Mode
The selective lock is a combination of corridor and back-of-house locks
found in ADVANCE magnetic stripe lock / HT24 systems.
Essentially, a selective lock is a freely keyed lock that can accept as
many as 250 users with an audit trail, or 500 users without (when
equipped with the HT28 or HT24F locks). Guest room keys and staff
cards can be set to have access in the locking plan. To gain access, the
card must have the proper site code, the correct card code, any
applicable authorization, and within the activation and expiration dates.
Automatic Code Change – ADVANCE magnetic stripe lock /
HT24 Lock
The most important feature of the Onity electronic lock is that it changes its code
automatically for each new guest that checks into the room. Each new guest card
used in a lock will automatically void the previous guest card.
In a similar manner, the lock will also accept a new master card. Any new master
card used in a lock will automatically void the previous master card.
Battery Operation – ADVANCE magnetic stripe lock / HT24
Onity locks are powered by 4 AA size alkaline batteries. These batteries are expected
to last between 2 and 4 years, depending on a number of factors. Factors that can
shorten battery life are:
• The freshness of the batteries when they are purchased.
• The number of transactions per day.
• Extreme cold weather.
• Battery quality.
Onity recommends the use of major brand batteries in the locks, such as Energizer,
Duracell, and Panasonic batteries. In installations where the lock will be subjected to
extremely cold temperatures, use 4 AA size Lithium batteries. Both Alkaline and
Lithium batteries may be purchased through Onity.
A low battery indication is given to staff cards for approximately one month prior to
the batteries being completely dead. The hand-held Portable Programmer can also be
used to check the level of the batteries.
Audit Trail – ADVANCE magnetic stripe lock / HT24 Lock
Onity locks use non-volatile memory to store a record of the most recent openings.
The Onity HT24 lock records the last 100 openings. This means that the locks will
not lose the audit trail, even if the batteries are removed. Reading the lock will
produce a list of all cards used in the lock and the date and time they were used.
Real Time Clock – ADVANCE magnetic stripe lock / HT24
Lock
The Onity lock circuitry contains a "real time" clock. This means that the lock is able
to determine if a card should be admitted based not only on the code of the card, but
also the date and time.