The VLT® BACnet/IP MCA 125 option is a plug-and-play solution that
optimizes the use of VLT® HVAC Drive together with building management
systems using the BACnet/IP protocol or running BACnet on Ethernet.

The embedded three-port managed switch of the VLT® BACnet/IP MCA 125
option comprises two external and one internal Ethernet port. This
switch allows the use of line structure for the Ethernet cabling. In
modern installation this is becoming increasingly attractive