to one wireless operator enters dau 1 at the dau 1 rf input port composite signal 107 is comprised of carriers 1 4 a second composite downlink input signal from e g a second base station belonging to the same wireless operator enters dau 2 at the dau 2 rf input port composite signal 108 is comprised of carriers 5 8 the functionality of dau 1 dau 2 rru 1 rru 2 rru 3 and rru 4 are explained in detail by u s provisional application ser no 61 374 593 entitled u201c neutral host architecture for a distributed antenna system u201d filed aug 17 2010 and attached hereto as an appendix one optical output of dau 1 is fed to rru 1 a second optical output of dau 1 is fed via bidirectional optical cable 113 to dau 2 this connection facilitates networking of dau 1 and dau 2 which means that all of carriers 1 8 are available within dau 1 and dau 2 to transport to rru 1 rru 2 rru 3 and rru 4 depending on software settings within the networked dau system comprised of dau 1 and dau 2 the software settings within rru 1 are configured either manually or automatically such that carriers 1 8 are present in the downlink output signal 109 at the antenna port of rru 1 the presence of all 8 carriers means that rru 1 is potentially able to access the full capacity of both base stations feeding dau 1 and dau 2 a possible application for rru 1 is in a wireless distribution system is e g a cafeteria in an enterprise building during the.