ZKTeco ProCapture-T, User Manual

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55
[Working principle]
The master device supports the Wiegand In function and the slave device supports the Wiegand Out
function. After the Wigand output port of the slave device is connected to the Wiegand input port of the
master device, Wiegand signals outputted by the slave device cannot contain the device ID and the
numbers sent from the slave device to the master device must exist on the master device. That is, the
user information on the slave device supporting the anti-passback function must map to the user
information on the master device supporting the anti-passback function.
[Function description]
The device detects anti-passback based on the last check-in/check-out record of users. The check-in
record must match the check-out record. The device supports out anti-passback, in anti-passback, and
in/out anti-passback.
When
Out Anti-passback
is set for a user on the master device, the last record of the user must be a
check-in record if the user needs to check in/out freely. Otherwise, the user cannot check out and the
check-out request of the user is rejected because of anti-passback. For example, if the recent first record
of a user is a check-in record, the second record of the user can be either a check-in or check-out record
but the third record must be based on the second record, ensuring that the check-in record matches the
check-out record. Note: If a user has no record, the user can only check in.
When In Anti-passback is set for a user on the master device, the last record of the user must be a
check-out record if the user needs to check in/out freely. Otherwise, the user cannot check in and the
check-in request of the user is rejected because of anti-passback. Note: If a user has no record, the user
can only check out.
Door
Slave Device
Master Device
User
Out
In