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Multi-featured power meter with feature key

  • US 20030110380A1
  • Filed: 02/23/2001
  • Published: 06/12/2003
  • Est. Priority Date: 02/23/2001
  • Status: Active Grant
First Claim
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1. An intelligent electronic device (“

  • IED”

    ), the device comprising;

    a function module, the function module operative to perform a power management function in conjunction with the IED;

    a key code corresponding to the function module, wherein the key code is operative to enable the function module to operate; and

    a key module, wherein the key code is encoded in the key module, the IED being adapted to connect with the key module, the key module removably coupled with the IED.

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