The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition; It can also output a processed clock and provide a clock source for other devices that need timing.

In an MSP ring, in which multiplex section states can a network element migrate? (Multiple choice)

For OSN products, changing which of the following parameters will cause the network element to reset?

Two beams of light that meet the coherence condition are called coherent light. Which of the following options are referred to as the coherence condition here? (Multiple choice)

If one device does not support auto-negotiation, but the other device does, the other device may operate in half-duplex mode (Q107).