APDH光纤环路系统具有容量适中、一步复用、自愈保护和网管功能完善等优点。
The APDH system has the advantages of moderate capacity, self-healing loop network, one step multiplexer and perfect network management.
APDH光纤环路系统具有容量适中、一步复用、自愈保护和网管功能完善等优点。
The APDH system has the advantages of moderate capacity, self-healing loop network, one step multiplexer and perfect network management.
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