PNI DK220 Manual Del Usuario página 21

Anti-passback for two doors
In this mode, the keypad on door 1 is the anti-passback master unit,
and the external card reader on door 2 is the secondary anti-passback
unit. Thus, an anti-passback system suitable for installation in parking
lots is created.
The user can enter the building on door 1 by reading the card on the
access control keypad and can only exit on door 2 by reading the
card on the external card reader. If the user's entry has not been
registered on door 1, he will not be able to exit on door 2. Also, the
user cannot enter a second time if his exit has not been registered.
Note: The door can only be opened by reading the card for Zone 1.
All other Zone 1 and Zone 2 access modes are invalid.
Troubleshooting
Problem
Card reading
distance too short
PIN setting
problems
Cause
Low card quality
1. The PIN does not
comply the standard
2.You are in card
reading mode, set
the password
21 - User manual
Solution
Use original cards
1. The first digit of
the PIN must be 1
or 2, according to
the Zone.
2. The PIN must
not be 1234. The
PIN must be 4 or 6
digits long.