What are the basic features of the U2000? Multiple Choices
Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?
Compared with dense wavelength division multiplexing (DWDM) systems, crude glass division multiplexing (CWDM) systems provide a certain amount of glass length and transmission distance within (kmkm), which greatly reduces system cost and has strong flexibility
In a WDM system, when the number of wavelengths is greater than ( ), the arrayed waveguide grating (AWG) is recommended.
When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple Choices)
The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.
Which of the following statements about ODUk_PM_BDI is correct?
Array waveguide grating (AWG) multiplexer/multiplexer has the following advantages: short wavelength spacing, large number of channels and flat passband. Suitable for DWDM systems in ultra-high speed, large tubes.
The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots
For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.
