What is the second RJ-45 connection used for?
The VX-VEB160R2 Ethernet Extenders can support 2 separate LANs through CAT3. These ports are also isolated from each other. This feature provides a cost efficient method to extend 2 separate LANs while using one connection. Examples are extending the Management LAN and a Guest LAN to a remote location over one copper pair while preventing the 2 from communicating with each other.