PDH opitika transceiver (Plesiochronous Digital Hierarchy, quasi-synchronous numera numera) o se transceiver opitika laʻititi, e masani ona faʻapipiʻi faʻaoga, e taʻua foi o tusi-to-point applications, ma o le gafatia e masani lava 4E1, 8E1, 16E1.Le isi, JHA TECHNOLOGY o le a faʻalauiloaina le advan ...
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