PDH optical transceiver (Plesiochronous Digital Hierarchy, quasi-synchronous digital series) bụ obere ikike transceiver ngwa anya, ngwa jikọtara ọnụ, nke a na-akpọkwa ngwa-na-point, na ikike bụ n'ozuzu 4E1, 8E1, 16E1. Osote,TECHNOLOGY JHAga-ewebata uru nke pdh optical transceivers n'ụzọ zuru ezu, ka anyị lelee!

1. Ọnụego ọnụ ọnụ ọnụ ọnụ na ọkọlọtọ interface dị n'otu na-enye ohere maka njikọta n'etiti ngwaọrụ sitere na ndị nrụpụta dị iche iche.
2. Ekwalitela ikike njikwa netwọkụ nke ukwuu.
3. Tinye echiche ọhụrụ nke netwọk ọgwụgwọ onwe onye. Ụdị netwọk mgbanaka nwere ikike nchedo onwe onye nke mejupụtara ngwa SDH nwere ike ịmaliteghachi nkwurịta okwu nkịtị site na netwọk na-agwọ onwe ya mgbe a na-ebipụ isi mgbaàmà nke mgbasa ozi.
4. A na-anakwere teknụzụ multiplexing Byte iji mee ka akara ngosi alaka dị elu na nke ala na netwọk dị mfe.

N'ihi na PDH nwere uru ndị a kpọtụrụ aha n'elu, ọ ga-abụ otu n'ime teknụzụ ndị bụ isi iji ghọta ozi superhighway. Mana n'okporo ụzọ alaka na okporo ụzọ ndụdụ ejikọtara na okporo ụzọ ozi, akụrụngwa transceiver anya PDH ka ga-aba uru.

Ihe ntụgharị anya anya 8E1 PDH na-eji sekit jikọtara ọnụ nke ukwuu nwere ikike ọgụgụ isi nwere onwe ya, ma na-etinye teknụzụ nkewa nkewa ọtụtụ oge iji gwakọta ma tinye akara E1 wee bufee ha n'otu ụzọ eriri anya. Ngwaahịa emebere site na iji mgbawa a na-eji usoro otu bọọdụ, yana njikọta dị elu, obere nha, ike dị ala, ọrụ a pụrụ ịdabere na ya, yana nrụnye na ojiji dị mfe.