Which of the following descriptions about OL, OLA and OPC boards is wrong?

Question

Options

• AAll three boards can realize the function of optical signal amplification
• BThe OL single board is used for the sending end and the receiving end
• CThe OLA board is used in the relay site
• DThe OPC board has different functions depending on the inserted modules

• A
  74% (14)
• B
  5% (1)
• C
  5% (1)
• D
  16% (3)

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