VTNS2003B-2 module is dedicated for multi-family systems
The device has one 2-wire bus output allowing to connect up to 20 internal panels of the VTH series and 2 VTOP series video intercomsAdditional ports allow cascading of devices via both 2-wire bus and UTP cat 5e/6 cables terminated with RJ-45 connectors
The switch can also be connected to the LAN, which allows to expand the installation with additional DAHUA devices operating in the IP standard and connect the entire video door phone system to the InternetIn the case of connecting the VTNS2003B-2 cascade to the LAN, it is recommended to connect only the lowest level switch in the cascade
Remark! When choosing 2-wire devices, check the compatibility list available at the bottom of the page in the "files" section.