Is the following description correct? In the GPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.

What is the maximum splitting ratio supported by the MA5680T GPBC board?

Is the following description correct? The link layer defines electrical and mechanical processes and functions to activate, maintain, and remove lines when the systems at both ends are connected.

For DBAs configuring AP services, which Type do we generally choose?

What are the alarm levels of U2000?