What is the range of copper wire recommended by Vectoring/SuperVector/G.fast in the FTTC scenario?

When delivered, the recommended load control frame is placed at the bottom of the cabinet; the storage settings are placed at intervals of 1U (1U = 44.45 mm) to facilitate management and reduce vibration transmission.

Which of the following insert frame are not ETSI insert frame types? (Multiple choice)

The OceanStor 18000 cabinet is packed in wooden cases and has a good material to accommodate a variety of environments. If the goods do not need to be installed after the customer arrives at the site, you can find open space to store.

Which is the correct statement about MSO? (Multiple choice)