Question 61

AC is the wavelength division OTM site, and B is the relay site. If site A inserts the ODU2_LCK signal, which of the following statements are correct? (Multiple choice)
  • Question 62

    Optical layer overhead alarm detection is implemented through optical layer overhead OOS. The R_LOS and MUT_LOS alarms are optical layer alarms and therefore are reported based on OOS detection.
  • Question 63

    It mainly completes the point-to-point voice communication between adjacent stations, without dialing, and it can be connected immediately after off-hook. This PCM service is called?
  • Question 64

    Which of the following options are correct for ROADM node configuration? (Multiple choice)
  • Question 65

    Among the following cabinet types, which ones can be installed with 0ptiXtrans E9624 subracks? (Multiple choice)