Method and system for controlling the supply of power to a circuit card in a card shelf through an activation signal

A method for controlling the supply of power to a circuit card in a card shelf, comprising:

• automatically generating an activation signal in response to connection of a non-power link between a circuit card and a backplane of a card shelf;
• automatically supplying power to a power link between the circuit card and the backplane in response to the activation signal;
• and
• ramping up the supply of power to the power link between the circuit card and the backplane in response to the activation signal.

A power supply card, comprising:

• a power supply;
• a power supply controller coupled between the power supply and a backplane power connector;
• a power ramp coupled between the power supply and the backplane power connector;
• the power supply controller operable to remove a supply of power from the power supply to the backplane power connector for a line card in response to a deactivation signal from the line card and to restore the supply of power from the power supply to the backplane power connector in response to an activation signal from the line card;
• and
• the power ramp operable to ramp up power from the power supply to the backplane connector in response to the activation signal.

A circuit card for a telecommunications node, comprising:

• a power connector configured to engage with a first mating connector of a backplane of a card shelf;
• an activation connector configured to engage with a second mating connector of the backplane of the card shelf after engagement of the power connector with the first mating connector of the backplane;
• a ground node coupled to the activation connector to signal previous engagement of the power connector to the mating connector of the backplane;
• and
• wherein the power connector is operable to receive ramped up power from a power ramp circuit for operation of the circuit card.

A telecommunications node, comprising:

• a power supply card including a power supply;
• at least one circuit card including a circuit configured to operate using power from the power supply;
• a backplane connecting the power supply of the power supply card to the circuit of the circuit card;
• means for automatically generating an activation signal in response to connection of the non-power link between the circuit card and the backplane;
• means for automatically restoring the supply of power to the power link between the circuit card and the backplane in response to the activation signal;
• and
• means for automatically ramping up the supply of power to the power link between the circuit card and the backplane in response to the activation signal.

A system for controlling the supply of power to a circuit card in a card shelf, comprising:

• means for automatically generating an activation signal in response to connection of a non-power link between a circuit card and a backplane of a card shelf;
• means for automatically supplying power to a power link between the circuit card and the backplane in response to the activation signal;
• and
• means for automatically ramping up the supply of power to the power link between the circuit card and the backplane in response to the activation signal.