The HUB communication manager allows the MATE to control and monitor a maximum of ten OutBack products. Currently the HUB comes in two types. The HUB-4 can connect up to four Outback products (FX’s and/or MX-60’s). The HUB-10 (shown below) can connect up to ten Outback products (FX’s and/or MX-60’s). The FX’s can be operated in a stacked or independent configuration. If the FX’s are to be stacked, the HUB must be part of the system. In a stacked configuration, the Master FX must be plugged into port #1 of the HUB. The Slave inverters must use the following ports (example: for 8 inverters and 2 MX-60’s, the Master must be plugged into Port 1, and the seven Slaves must be plugged into Ports 2-8. The MX-60’s can use Ports 9&10).