LT Security LTAL5300PM - Manual (Page 41)

Host computer and slave
1、introduction of host computer and slave
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wo machines control one lock, install one machine in the door (hereinafter referred to as the "host"), install the
other one out the door(hereinafter referred to as "slave"), at the same time, 2 machines may control the lock only the host
connect with the lock. Consequently, solve trivial connection problem of using 2 traditional machines on controlling one
lock.
Fingerprint identification, complete to verify user permissions in the host computer, the computer also keep records, slave
is fingerprint head or reading module only, carry through fingerprint collection, card reading, and shall need to verify the
information, then sent it to the host. Consequently, solve chaos problem of software on managing user information and in
and out records of 2 relative machines.
The host and slave machine also has back capabilities, in and out records must be matched, otherwise, it can not open
the door, so prevent people who followed by others from entering the door, and prevent the security risks.
2、work principle of host computer and slave
Host computer：Carry through fingerprint registration, fingerprint authentication, user permission settings, user
permission verification, receive fingerprints or card information collected from extension, and then validate and bring the
results back to the slave.
Slave：Only as a fingerprint read head, carry through fingerprint collection, read card, and send message which need to be
verified to the host computer, the host can choose whether to display the test results of slave.
Daylight saving time（time zone settings）
Daylight Saving Time, also known as "Daylight Saving Time", it is a system which regulate local time artificially in
order to save energy, during the implementation of this system, the adopted time known as the "daylight saving time."
Generally, in summer day comes early, so people regulate one hour ahead of time, then you can get up and sleep early to
reduce amount of lighting and make full use of light resources, thereby saving lighting electricity. In autumn, move clock
back. Different countries adopt specific regulation about daylight saving time. At present, nearly 110 countries implement
daylight saving time each year.
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