Optical switching are not currently used because:
A. Crossbar systems are less expensive.
B. Optical switches lack required OAM&P features.
C. Optical switching methodologies are still experimental.
D. Of difficulties in conversion between electrical and optical signals.
Answer:C
Optical switching are not currently used because:
A. Crossbar systems are less expensive. B. Optical switches lack required OAM&P features. C. Optical switching methodologies are still experimental. D. Of difficulties in conversion between electrical and optical signals.