The single-fiber bidirectional WDM system uses only one optical fiber to transmit optical signals in two directions at the same time. The optical signals in the two directions should be arranged at different wavelengths.
Which of the following statements about the EFS4 board are correct? (Multiple Choice)
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
The working mode of a port determines the flow control mode of the port. When the working mode is 100 Mbit/s full duplex, which of the following flow control modes can be used?
The coherent receiver technology uses the local oscillator laser that has the same frequency as received signals to perform coherent processing and recovers the ( ) information from the received signals. (Multiple Choice)
