Ndezvipi zvishandiso zvinodiwa pakugadzira nekuyedza mamodule e800G optical?

Ndezvipi zvishandiso zvinodiwa pakugadzira nekuyedza mamodule e800G optical?

Kuedzwa kwe800Gmamodule emazisoinosanganisira kuyedzwa kwekushanda kwekugamuchira uye kuyedzwa kwekushanda kwekutumira. Rondedzero huru yemidziyo uye logic ndeiyi inotevera:
1, Midziyo yekuedza
Bhodhi rekutakura reMCB 1.1
Gadzira mabhodhi maviri ekutakura eMCB kuti uise DUT module ne standard module zvakateerana. Optical module inoiswa mu carrier board uye yakabatana ne error code meter kuburikidza ne high-speed RF cable. Mabhodhi maviri ekutakura anogona kuve nechokwadi chekuti RX testing neTX testing zvakasununguka. Kana uchishandisa loopback testing, bhodhi rimwe chete rekutakura rinodiwa. 800G optical module inoda 8T8R optical path, iyo inoenderana nezvinodiwa zve 16 pairs of differential signals yeGold Finger, zvinoreva 32 RF cables/carrier boards.
1.2 Midziyo Yekudzora Kupisa
Mabhodhi ekutakura eMCB anowanzo shongedzerwa nemidziyo yekuona tembiricha uye yekuongorora kuti itsigire kushanda kwekuyedza patembiricha dzakasiyana. Midziyo yekudzora tembiricha inowanzoiswa pabhodhi rekutakura reMCB reDUT. Kubatanidza kudzora tembiricha pabhodhi rekutakura reMCB kunogona kurerutsa michina.
1.3 Chinoongorora kodhi yekukanganisa
Gadzira ma 800G bit error testers maviri kuti abudise PRBS sequences uye adhiraive RX neTX tests zvakateerana. Kana standard optical module ichitsigira PRBS sequence, inogona kuchengetedza one bit error detector uye kushandisa computer yepamusoro kuraira standard optical module kutumira test sequence. Drive RX test (bit error test): Gadzira test sequence, gamuchira return sequence, uye enzanisa zvikanganiso zviri pakati pe transmitter ne receiver, ndiko kuti, bit error. Drive TX test (eye diagram test): Gadzira test sequence yeDUT, uye DUT inoburitsa chiedza zvichienderana nesequence iyi. Kubatanidzwa kwemukati kweMCB carrier board netembiricha control equipment mu error code analyzer kunogona kurerutsa michina.
Midziyo yeWachi ye1.4CDR
Chiratidzo chemaziso chinotumirwa nguva nenguva, uye CDR inoratidza muganhu wenguva iyi kubva pachiratidzo chemaziso.
1.5 Oscilloscope
Zvichienderana nechiratidzo chenguva chinopiwa neCDR, data rechiratidzo chemaziso rinoiswa pamusoro pechiso nguva nenguva kuti rigadzire dhayagiramu yeziso. Kana oscilloscope ichitsigira ma inputs mana uye 800G testing, saka mayuniti maviri anodiwa. Zvinodhura zvakanyanya, kana uchida kuchengetedza mari, unogona kushandisa switch yemwenje kuti ushandise.
1.6Chinja chemaziso
Chinja nzira yekutarisa pakati pekuyedza dhayagiramu yemaziso nekuyedza simba.
1.7Mita yemagetsi yeOptical
Yera simba remagetsi rinobuda, nzira 8. Chiyero chemagetsi chemagetsi chinogona kubatanidzwa muswitch yemagetsi, zvichiita kuti michina ive nyore.
1.8 DC magetsi
Ipa simba reDC rakasimba kubhodhi rekutakura reMCB.

2, pfungwa yekuvaka system yekuedza
2.1. Kuedza kweRX reception performance test (bit error rate, sensitivity)
Kuyerera kwechiratidzo: Chinoongorora kodhi yekukanganisa 2 → Module yakajairika ye optical → Chinoongorora kodhi ye optical → DUT → Chinoongorora kodhi yekukanganisa 1
Midziyo mikuru: optical attenuator (inoshandiswa pakuongorora mapoinzi emagetsi), standard optical module (inoshandiswa senzvimbo yechiedza).
Chinangwa: Kuyera chiyero chekukanganisa kwebit yeDUT pamasimba akasiyana ekuona nekuchinja huwandu hwekudzikira kweattenuation.
2.2. Kuedza kushanda kweTX emission (dhayagiramu yemaziso, simba rekuona)
Kuyerera kwechiratidzo: Chinoongorora kodhi yekukanganisa 1 → DUT → Chinongedzo chemaziso → (power meter/oscilloscope+CDR)
Midziyo mikuru: Optical switch (kuchinja nzira), CDR (kudzoreredza wachi, yezviratidzo zvePAM4).
Chinangwa: Kusimbisa simba rechiedza chinoburitswa uye hunhu hwechiratidzo (dhayagiramu yeziso inofanira kuratidza "maziso" matatu ePAM4).
3, Pfungwa huru dzekugadzirisa kwakakosha kwekuyedza 800G
Huwandu hwechiteshi: 800G inoshandisa nzira 8 (8T8R), uye minwe yesimbi yebhodhi rekutakura reMCB inofanirwa kuenderana ne16 peya dzezviratidzo zvekusiyanisa (32 RF cables).
Rudzi rwechiratidzo: Pakuchinja kwePAM4, oscilloscope inofanira kusanganiswa nemidziyo yeCDR kuti itore dhayagiramu yeziso nemazvo.
Mhinduro iri nyore: Chinoongorora zvikanganiso chinogona kubatanidza mabasa eMCB netembiricha. Chinochinja chinja chinogona kubatanidzwa neoptical power meter. Kana chikashandiswa loop back testing (DUT self collecting), chinogona kuderedza bhodhi rimwe chete reMCB carrier uye standard module, asi zvinhu zvekuyedza zvinogona kunge zvisingakwanisike.

4, Tsananguro yemashoko makuru
PRBS: Kutevedzana kwenhema kusina kurongeka, kutevedzera traffic chaiyo yedata.
MCB: Bhodhi rekutakura kutevedzera module, chigadzirwa chekuyedza.
CDR: Kudzoreredza data rewachi, kubvisa wachi kubva kuzviratidzo zvemaziso.
Dhayagiramu yeziso yePAM4: modulation ye pulse amplitude yemazinga mana, dhayagiramu yeziso inoratidza matanho mana (maburi matatu emaziso)