| 摘要 |
A power harness (100) including an electrical cord (110) extending from a housing (120) for delivering electrical power to at least one externally accessible downstream power port (130) at least partially contained in the housing (120). The power harness (100) also includes a plurality of externally accessible USB ports (140, 145) each at least partially contained in the housing (120), the plurality of USB ports including first and second upstream USB ports (140, 145) and a plurality of downstream USB ports (150). The power harness (100) also includes circuitry (190) interconnecting associated ones of the upstream and downstream USB ports ( 140, 145, 150) such that accessed ones of the plurality downstream USB port (150) communicate with: (1) an accessed one of the first and second upstream USB ports (140, 145) when only one of the first and second upstream USB ports (140, 145) is accessed; and (2) a predetermined one of the first and second upstream USB ports (140, 145) when both of the first and second upstream USB ports (140, 145) are accessed. |
