Earlier today we gave you a glimpse at Sprint’s Overland Park campus, its Usability Lab, the Sprint Technology Integration Center and the carrier’s Mobile Technology Lab. Within that Mobile Technology Lab is a huge amount of fascinating equipment that we were not allowed to photograph. One box Sprint was happy to let us snap, however, was the Ericsson E-Node Base Transceiver System (BTS) pictured above. These devices find themselves at the center of Sprint’s forward-looking network efforts. Dubbed “Network Vision,” Sprint is in the process of upgrading and future-proofing its network — at least, to the extent a network can be future-proofed at this point. The E-Node BTS you see above and in the gallery below is an amazing advancement that will enable Sprint to realize this vision. The vertical “cards” you see pictured can be inserted and removed as easily as servers in a rack. Each one of these cards enables a network technology and is connected to an antenna cluster. So, for example, if Sprint was to reach a deal that would allow a partner to build out 4G LTE on Sprint’s network, Sprint engineers could simply add the appropriate LTE card to the BTS and off we go. Of course this is a bit oversimplified as there is plenty of intensive testing involved, but this is a monumental leap forward, and one that we hope will be adopted by other major carriers in the U.S. Sprint’s Network Vision program really is the future of the carrier’s network, and the technology and facilities behind it are incredible. Check out the gallery below for a closer look at the E-Node BTS.