In the UA5000 chassis with PVM as the main control board, which statement about the user board is correct?

UA5000 If PVM and IPM are networked together and provide voice services and broadband services at the same time, the voice services are transmitted to IPM through the internal IP channel, and then transmitted to the upper network by the uplink interface of the IPM board, then the voice service of PVM is uplinked Which mode should be set?

MA5600T/MA5680T GE/FE optical interface board H802OPGD provides Ethernet optical access function .
How many GE/FE P2P accesses can be supported at most?

Which of the following descriptions of MUX vlan characteristics is correct?

Is the following description correct? Administrators can maintain and manage UA5000 devices through out-of-band network management or in-band network management.