(single)Is the following description correct? The key parameters of the ODN network are attenuation, insertion loss, and return loss.
(single) Which layer of the OSI reference model does the Ethernet switch workon?
(single) Is the following description correct? ONT call emulation refers to the use of the ONT test module instead of the user's phone for call testing. When the ONT POTS user cannot provide voice services, the ONT call emulation test is performed remotely through the OLT command line to help the user diagnose whether the POTS user call of the ONT is normal. ONT can be offline when performing ONT call sim-ulation
(single) Regarding the ATM network, which of the following descriptions is wrong?
(multiple) What do I need toconfigure when adding the ont-lineprofile to the MA5680T?