Patent ID: 7278036

Claim:
A system for starting up plural electronic devices in an orderly manner, the system comprising: an external controller comprising N output ends; a power source; a plurality of backboards, each of the backboards comprising: a power switch connected to the power source and at least one of the electronic devices, for switching a connectivity between the power source and the at least one electronic device on and off; an onboard controller connecting to the power switch, being configured with N input ends and an output end, for providing an output to the power switch to control switching on and off of the connectivity between the power source and the at least one electronic device; a first connector, comprising N ends that are respectively connected to the N input ends of the onboard controller in one-to-one correspondence; and a second connector comprising N ends, a first end of the second connector being connected to an Nth end of the first connector, a second end of the second connector being connected to a first end of the first connector, and so on through to, or including, an Nth end of the second connector being connected to an N−1th end of the first connector; provided however that a terminal one of the backboards need not have a second connector; wherein the N ends of the first connector of a first one of the backboards are respectively connected to the N output ends of the external controller in one-to-one correspondence, and the N ends of the second connector of the first backboard are connected to the N ends of the first connector of a second one of the backboards in one-to-one correspondence; the N ends of the second connector of each of the backboards from the second backboard on except for the terminal backboard are connected to the N ends of the first connector of a corresponding subsequent backboard in one-to-one correspondence; and N is a natural number equal to or greater than 2.