When the device reports the PW_APS_DEGRADED alarm, what is the problem with the LTE service carried by the station?
In the PTN network, what are the parameters for measuring QOS?
The EDFA erbium-doped fiber amplifier is a key component of the new generation of optical fiber systems. Which of the following options are correct for the description of its advantages?
STM-N signal transmission on the line needs to be scrambled, mainly to facilitate collection and extraction of line timing signals. Will all bytes in the SDH frame structure be
scrambled?