" There are 6 inputs. 2 for PCS 1X/EV, 2 for 800SMR, and 2 for PCS LTE. There are also 3 ACUs for downtilt control (more on that later). See how all the cables are hooked up?"
Does Sprint deploy 4T4R LTE? If yes, that could be 1T4R for PCS 1x/EV, 4T4R for PCS LTE and 2 for 800. This configuration is under the assumption the RRU is capable of supporting Dual mode.