Li-transceivers tsa optical li ka aroloa ka lihlopha tsa 3 ho ea ka theknoloji: PDH, SPDH, SDH, HD-CVI.PDH optical transceiver: PDH (Plesiochronous Digital Hierarchy, quasi-synchronous digital series) transceiver optical ke transceiver e nang le bokhoni bo bonyenyane, e sebelisoang hangata ka bobeli, ...
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