I tenei wa, me te whakawhanaketanga o te hangarau korero whatunga, kua nui ake o maatau pukenga tono hangarau, ko tetahi ko te whakamahipdh whatu transceivers. Mai i te mea kua whakamahia e matou nga pdh optical transceivers, ko te tuku korero kua tino pakaru nga ngoikoretanga o te tuku korero tuku iho.

1. He korero poto mo nga taputapu transceiver optical PDH

PDH whatunga whatu transceiver tango iahiko whakauru nui-tauine me te mana motuhake hinengaro, te tono i te wa wehenga hangarau multiplexing, te raka wahanga mamati me te hangarau tangohanga karaka, me te hangarau atanga 2M anti-porearea, he mea tino pai mo nga waa me nga whakaritenga pono me te whakaoti. mahi awhina. Pēnei i: China Mobile, China Unicom, waea waea, hiko hiko, haumarutanga a te iwi, hoia, huarahi nui, rererangi me etahi atu hononga whakawhitiwhiti kua whakatapua. Ko te waahanga taputapu ka tango i te FPGA nui-nui, e whakauru ana i te whakawaehere, te wetewete, te whakauru korero, me te whakahuri whakaoho, he maamaa te ara iahiko me te whakapai ake i te pono o te miihini katoa.

Ko te PDH whatu transceiver hanumi me te whakawaehere i te tohu E1 me te tuku i runga i te rua o nga muka whatu. Ko te PDH optical transceiver mahi whakahaere whatunga e whakahaere ana i te whakahaere whakakotahitanga o nga taputapu whakawhitiwhiti e nga kaiwhakamahi ahumahi. Na roto i te whakahaere whatunga pokapū, ka taea te whakaoti i nga mahi whakahaere penei i te aroturuki, te whirihoranga, te tautuhi, me te whakahou mahi o nga taputapu mamao e tika ana.

2. Nga mahi matua me nga ahuatanga o te PDH optical transceiver

Whakaratohia atanga whakahaere whatunga RS232, tautoko i te whakahaere whatunga whakakotahi; (e pa ana ki te kaikawe-koeke NT-240D / 240D +) te mana rua, te taapiri wera tahi, (e pa ana ki te kaikawe NT-240D / 240D +) whakarato 4 tauranga pakihi E1, karaka mamati katoa Whakaora me te hangarau raka waahi maeneene ka taea te whiriwhiri AC220V , DC48V, DC + 24V, DC-24V te mana hiko hei whakarato i te tirotiro whakaoho whakaoho o te rohe / hoa, Ko te rama e toru-tae e tohu ana ka tautokohia e ia te hurihanga peka E1 rohe/mamao, he waea whai mana kotahi, he hongere raraunga maramara RS232, a ko te reiti he 300-19.2Kbit/s urutau.

3. PDH whatu transceiver mahi

a. E1 tuku: Ka taea e te hua te mohio ki te 4-16 E1 (2Mb / s) te tuku muka whatu.

b.Ethernet tuku: i roto i te kōwae Itarangi kōwhiringa, e wha takere o 10M/100M urutau ratonga Itarangi tuku muka whatu taea te mohio.

c.Service mahi: Ka taea te whakauru i te hua ki te mahi waea ratonga ki te mohio i te whakawhitiwhiti pakihi i waenga i nga transceivers optical e rua.

Raraunga d.RS232: Ka whakaratohia e te hua he hongere raraunga tukutahinga RS232. Ko te reeti raraunga kei te urutau-whaiaro i raro i te 115.2Kb/s, a ko te whakatakotoranga raraunga he urutau-whaiaro.

f.Whakawhiti atanga rahinga: Ka taea te whakauru i te hua ki te atanga rahinga whakawhiti relay, ka taea te whakamahi mo te whakaoho me te whakahaere.