Which of the following is not the advantage of the enhanced MSTP built-in PCM solution over the traditional solution?
Reduce the number of network failure points, improve network Network reliability
Save room space
End-to-end management business, easy operation and maintenance
Improve signal transmission quality
The wave number of the commonly used CWDM system is
4
8
16
32
Self-built optical transmission network can achieve physical isolation, so it must be more reliable and economical.
TRUE
FALSE
The interfaces supported by the enhanced MSTP built-in PCM include.
6×2/4 line voice/E&M
FXS/ FXO
RS232
V.35
WDM system, the noise is mainly introduced by EDFA amplifier