Which of the following products are not part of the ONU series?

What are the categories of acceptance test items in the MA5600T/MA5680T acceptance test manual?

When the MA5600 service box provides pure broadband service, how many slots can be inserted into the service board?

What are the VLAN attributes supported by MA5680T?

Is the following description correct? ADSL2+ is an extension of ADSL technology, supporting a downlink rate of up to 24Mbit/s and an uplink rate of 2.5Mbit/s, and the longest transmission distance can reach 6.5km.