What single board functions does the integrated single board DAPXF integrate? (Multiple Choice)

Question

Options

• AOptical Amplification
• BFIU
• COSC
• DSOM

• A
  78% (36)
• C
  9% (4)
• D
  13% (6)

Explanation

Optical Amplification and FIU are correct because the DAPXF board was specifically designed to consolidate these two traditionally separate line-system functions onto a single integrated board - the amplifier stage (EDFA) boosts the optical signal, while the FIU (Filter Interface Unit) acts as the demarcation point between the amplifier and the multiplexing/ROADM side, and combining them reduces shelf space and simplifies interconnects.

OSC (C) is incorrect because the Optical Supervisory Channel is a dedicated out-of-band management channel function, typically handled by a separate OSC board or module rather than being part of the amplification/filter integration. SOM (D) is incorrect because it is not a standard line-system function that the DAPXF integrates; it does not belong to the amplifier/filter subsystem the DAPXF is built around.

Memory tip: Think of DAPXF as "Dual Amplification-Plus-Filter" - the board earns its name by pulling the amplifier (Optical Amplification) and the filter interface (FIU) together. If a function is about monitoring (OSC) or unrelated to the amp/filter pair, it stays off the board.

No community discussion yet for this question.