Edge Span S60 is a solar stand alone system developed by Edgeware. Edgeware has optimized its interface configuration with solar battery box design as its core direction. GE SFP can be configured as uplink, and downlink can also be configured with different interfaces according to customer requirements. Generally, it is recommended to configure three GE interfaces that support POE/POE+. We can also configure more POE interfaces under this model, and can also add industrial interfaces such as RS485/RS232. Of course, we can also provide various controllable voltage output interfaces according to the requirements. All in all, the Edge Span S60 is a custom designed solar stand alone system.