Wiegand output makes K40 flexible to connect with ZK or any 3rd party controllers as a slave reader, Additionally, wiegand input allows two units of K40 to configure with each other and utilize Master & Slave solution, which requires user verification at both entrance and exit. Meanwhile, anti-pass back function can be used to maximize the security.
Auxiliary input interface allows SF300 to connect with an external source, for instance, a smoke detector or emergency switch. Once the linkage function is enabled through the machine menu, the device would generate an alarm signal and open the door in case of emergency.