| 摘要 |
There is disclosed a system and method for the on-line insertion of line replaceable units (such as circuit board cards (220, 230, 240, 250, 260, 270, 280) into a backplane (210) of a processor shelf (170), a modem shelf (140), or a similar type of equipment. The present invention comprises at least one interface control processor card (230) that is capable of functioning as a primary master controller (230) to control the insertion of circuit board cards (220, 230, 240, 250, 260, 270, 280) into the backplane (210). Newly inserted circuit board cards (220, 230, 240, 250, 260, 270, 280) do not automatically have access to full power, or to the buses, or to other cards. A newly inserted circuit board card (220, 230, 240, 250, 260, 270, 280) remains isolated until the primary master controller (230) checks, configures, and authorizes the newly inserted circuit board card (220, 230, 240, 250, 260, 270, 280) to operate. A secondary master controller (240) is provided in case the primary master controller (230) fails. An automated boot procedure is provided to enable a circuit board card (220, 230, 240, 250, 260, 270, 280) to determine whether it is a master controller (230, 240). |
