A SW (70) receives an Ethernet® signal from an outside of areas E and F. The SW (70) selects and outputs the obtained Ethernet® signal to any one of APs (91a to 91e) in accordance with a network structure managed by the SW (70). The AP (91a to 91e) converts the Ethernet® signal to an electrical signal...http://www.google.ca/patents/US7650112?utm_source=gb-gplus-sharePatent US7650112 - Method and system for extending coverage of WLAN access points via optically multiplexed connection of access points to sub-stations