ZK Technology MA300, Руководство пользователя

Страница: 41 / 46

MA300 User Manual ZKTechnology EU
37
4.2 Anti-Pass Back ★
[Overview]
Sometimes, some illegal person follows the other one into the gate, which
will bring security problem. To prevent such risk, this function is enabled.
In record must match out record, or the gate won’t be open.
This function needs two machines to work together. One is installed
inside the door (master machine hereinafter), the other is installed outside
the door (slave machine hereinafter). Wigand signal communication is
adopted between the two machines.
[Working principle]
The master machine has Wigand In and slave machine has Wigand Out.
Connect Wigand Out of slave machine to Wigand In of master machine.
Wigand output from slave machine must not own machine ID. The
number sent to master machine from slave machine must be found in the
master machine.
[Function]
Judge whether it is anti-pass back according to user’s recent in-out
record. In record and out record must be matched. This machine supports