System and method for on-line insertion of line replaceable units in wireless and wireline access systems

For use in association with a backplane of an item of electronic equipment wherein said backplane comprises a common control bus, one or more additional control buses, one or more operations buses, and one or more traffic buses, a method for the on-line insertion of a line replaceable unit into said backplane, said method comprising:

• inserting a primary master controller into said backplane;
• inserting said line replaceable unit into said backplane so that said line replaceable unit is partially powered but does not have full access to all buses in said backplane or access to full power when said line replaceable unit is first inserted into said backplane;
• and
• controlling the access of said line replaceable unit to remaining buses in said backplane and full power with said primary master controller.

For use in association with a backplane of an item of electronic equipment wherein said backplane comprises a common control bus, one or more additional control buses, one or more operations buses, and one or more traffic buses, a method for the on-line insertion of a line replaceable unit into said backplane, said method comprising:

• inserting a circuit board card into said backplane;
• providing a controlled power ramp up of partial power to said inserted circuit board card without activating connection of said inserted circuit board to any of said common control bus, one or more additional control buses, one or more operations buses, and one or more traffic buses;
• determining whether a voltage rail has failed;
• starting a reset timer;
• running a power on self test on said inserted circuit board card;
• determining whether said inserted circuit board card passed said power on self test;
• activating connection of said inserted circuit board to said common control bus to determine whether said inserted circuit board or another circuit board inserted into said backplane should control access by the inserted circuit board to full power and to said one or more additional control buses, one or more operations buses, and one or more traffic buses.