MultiLane AT4039E GUI Bit Mai Gwajin Kuskuren Ratio

Bayanin samfur

• Sunan samfur: Bayanan Bayani na AT4039E GUI
• Nau'in Samfur: Mai gwada Ratio Kuskure

Siffofin

• 4-Kwarjin gwajin layi
• Yana goyan bayan ƙimar bayanai na 23-29 & 46-58 GBaud
• Mai iya gwadawa a 400G
• Yana goyan bayan tsarin NRZ da PAM4

GABATARWA

Wannan shine littafin aikin mai amfani na AT4039E. Ya ƙunshi shigar da kunshin software ɗin sa kuma yayi bayanin yadda ake sarrafa kayan aikin don ƙirƙira ƙirar ƙira da gano kuskure; yadda ake sarrafa tsarin clocking, abubuwan shigarwa/fitarwa da duk ma'aunin da ke akwai.

Acronym	Ma'anarsa
BERT	Gwajin Kuskure Bit
API	Interface Programming Application
NRZ	Rashin Komawa Zero
GBd	Gigabaud
PLL	Madauki-Kulle Lokaci
PPG	Pulse Pattern Generator
GHz	gigahertz
PRD	Takardun Bukatun samfur
I/O	Shigarwa/fitarwa
R&D	Bincike & Ci gaba
HW, FW, SW	Hardware, Firmware, Software
GUI	Interface Mai Amfani da Zane
ATE	Kayan Gwaji ta atomatik
HSIO	Babban Gudun I/O

API da Takardun SmartTest

• Wannan jagorar tana goyan bayan kayan aikin AT4039E kuma yana dacewa da Advantest V93000 HSIO gwajin shugaban firam/twinning.
• Duk APIs suna nan don Linux kuma an gwada su a ƙarƙashin Smartest 7. Don jerin APIs da yadda ake amfani da su don Allah a duba babban fayil ɗin “API” akan AT4039E webshafi.
• Wannan jagorar baya bayyana yadda ake sarrafa kayan aiki ta amfani da yanayin SmarTest. Koma zuwa Advantest's webshafin da ke ƙasa don takaddun SmarTest yana lura cewa yana iya canzawa ba tare da sanarwa ba kuma yana buƙatar damar shiga ta hanyar Advantest: https://www.advantest.com/service-support/ic-test-systems/software-information-and-download/v93000-software-information-and-download

Kayan samfur
Kayan aikin ya ƙunshi software mai zuwa:

• Saukewa: AT4039E.

GUI kayan aiki yana gudana akan Windows XP (32/64 bit), Windows 7,8 da 10.

NOTE. Waɗannan aikace-aikacen suna buƙatar Microsoft .NET Framework 3.5.

• Idan ana buƙatar Microsoft.NET Framework 3.5, ana iya saukewa ta wannan hanyar haɗin yanar gizon: http://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e-fdaa79a8ac3d/dotnetfx35.exe.
• Don ƙarin sabuntawar samfuran, duba waɗannan abubuwan webshafi: https://multilaneinc.com/products/at4039e/

Mafi ƙarancin buƙatun PC
Kaddarorin Windows PC na aikace-aikacen AT4039E GUI yakamata su dace da cikakkun bayanai masu zuwa:

• Windows 7 ko mafi girma
• Mafi qarancin 1 GB RAM
• 1 Katin Ethernet don kafa haɗi tare da na'urar
• Mai haɗa USB
• Pentium 4 processor 2.0 GHz ko fiye
• NET Tsarin 3.5 sp1

NOTE: Ana ba da shawarar haɗa BERT ta hanyar Ethernet zuwa PC ɗaya kawai don hana rikici daga umarnin mai amfani da yawa.
NOTE: It ba a ba da shawarar haɗa kayan aiki zuwa cibiyar sadarwar jinkirin ko haɗa shi ta hanyar WiFi ba

Shigarwa

Wannan sashe yana magana akan shigarwa da kuma kawo kayan aiki, yana magance batutuwa masu zuwa:

• Fara tsarin
• Jagorar haɗi

Matakai na Farko: Lokacin da kuka fara karɓar kayan aikin, yana da adireshin IP da aka riga aka tsara daga masana'anta. Ana buga wannan adireshin IP akan lakabin akan kayan aiki. Kuna iya zaɓar kiyaye wannan IP ko canza shi. Idan kana buƙatar canza adireshin IP koma zuwa sashin "Yadda ake canza IP da sabunta firmware".

Haɗa ta hanyar Ethernet:

• Haɗa PC zuwa masu haɗin RJ45 da ke gefen firam ɗin tagwayen V93000 ta hanyar kebul na Ethernet. Ethernet ita ce hanya ɗaya tilo don sarrafa kaset ɗin Multilane.
• Domin haɗi ta hanyar Ethernet, kuna buƙatar sanin adireshin IP na kayan aikin da kuke buƙatar haɗawa da su. Duba lakabin a kan harsashi na kaset.
• Ana ba da shawarar ping mai sauƙi ta amfani da layin umarni na windows don bincika ko tashar tashar ku ta sami damar isa kayan aikin.
  • Don canza adireshin IP na allo, kuna buƙatar shigar da direbobin USB (koma zuwa sashin Shigar Driver USB).

Yanzu an kunna kayan aikin kuma an haɗa ta ta adireshin IP na dama. Na gaba, kuna buƙatar saita siginar da aka samar.

GUI Overview

A cikin GUI na kayan aikin ku, akwai filayen sarrafawa da yawa waɗanda kowanne ya bayyana a ƙasa.

Filin Haɗin Kayan Aiki

Abu na farko da kake son yi shine tabbatar da cewa an haɗa ka da kayan aiki. Idan kun kasance, maɓallin haɗin haɗin zai karanta Cire haɗin kuma koren LED yana haskakawa.

Kulle PLL da Filin Matsayin Zazzabi

Kula da LEDs da karatun zafin jiki a wannan filin. Kulle TX yana nufin cewa an kulle PLL na PPG. Kulle RX yana tafiya kore ne kawai idan an gano sigina na daidaitaccen polarity da nau'in PRBS akan mai gano kuskure.
Idan zafin jiki ya kai 65 ͦC, na'urar lantarki za ta kashe ta atomatik.

Karatun Revision Firmware da aka shigar
Ana nuna sigar firmware da aka shigar a saman kusurwar dama ta GUI.

Kanfigareshan Rate Na Layi (Ya shafi duk tashoshi lokaci ɗaya)

Wannan shine inda kuka saita bitrate don duk tashoshi 4. Hakanan zaka iya zaɓar shigarwar agogo. Agogon na ciki ta tsohuwa. Ya kamata ku canza zuwa ciyarwar agogon waje a cikin lokacin da kuke buƙatar daidaitawa biyu ko fiye da AT4039E ga juna a cikin salon maigidan bawa; Ana samun wannan ta hanyar saita daidaitaccen tsarin jumper akan jirgin baya na AT4000. Bayan canza daga agogo na ciki zuwa waje kuma akasin haka, dole ne ka danna neman canje-canje don aiwatarwa (wannan yana ɗaukar 'yan daƙiƙa kaɗan).

Yanayin & Saitunan Ƙarewa (Aika zuwa duk tashoshi lokaci ɗaya)

Bayani
"Ref" yana nuna yawan fitowar agogo. Wannan aiki ne na bitrate kuma zai bambanta bisa ga saitunan agogon ku a ƙarƙashin menu na "Yanayin". Sanin mitar agogo da ake fitarwa ta BERT yana taimakawa lokacin da kake son kunna oscilloscope. Wasu oscilloscopes suna buƙatar mitar agogo sama da 2 GHz. Don samun AT4039E don fitar da waccan, je ƙarƙashin saitunan yanayin kuma zaɓi agogon don zama “Duba”. Zaɓi ma'aunin ƙima domin sakamakon ya kasance cikin kewayon iyaka. A cikin yanayin AT4025, ana amfani da Ref Clk don samar da agogo daga gefen AT4039E.

Don canzawa tsakanin NRZ da PAM-4 codeing, yi amfani da saitin Yanayin TX, sannan danna Aiwatar. Zaɓuɓɓukan Grey Mapping da DFE pre-coding ana samun su a yanayin PAM4 kawai. DFE Pre-coding yana aika pre-amble don mai karɓar DFE don daidaitawa zuwa kafin a aika da ainihin tsarin PRBS, don guje wa yaduwar kuskuren DFE. Mai ƙididdigewa yana aiwatar da tsarin 1+D don amsawa ga ?=???+? shigar da bayanai. A halin yanzu ƙaddamarwar DFE ta atomatik ne kuma ba zaɓaɓɓen mai amfani ba. Taswirar launin toka yana ba da damar amfani da PRBSxxQ da aka ayyana a cikin IEEE802.3bs. Lokacin da aka kunna taswirar Grey, PRBS13 da PRBS31 a ƙarƙashin tsarin zaɓin menu suna juya zuwa PRBS13Q da PRBS31Q bi da bi. Taswirar launin toka yana sake tsara taswirar alamar zuwa masu zuwa: 00 → 0 01 → 1 11 → 2 10 → 3

Saitunan Pre-Channel

Kuna iya daidaita waɗannan saitunan akan kowane tashoshi. Wadannan su ne:

Bayani
AT4039E na iya fitar da kewayon samfuran da aka riga aka tsara. Baya ga tsarin PRBS, akwai layin gwaji da jitter. Har ila yau, a saman tsarin da aka riga aka tsara mai amfani yana da damar yin la'akari da nasa tsarin - ƙari akan wannan gaba a ƙasa.

Lura: Gano kuskure yana aiki ne kawai akan tsarin PRBS da ke cikin jerin faɗuwar ƙirar RX. Ba zai yiwu a yi gano kurakurai akan ƙayyadaddun alamu na al'ada ba.

Tsarin al'ada ya ƙunshi filaye 2 tare da haruffa hexadecimal 16 kowanne. Dole ne mutum ya cika filayen biyu tare da duk haruffa hex 32. Kowane hali hex yana da faɗin 4 bits, yana yin alamomin PAM2 guda 4; misaliample 0xF shine 1111 don haka a cikin Grey-coded PAM yankin wannan yana haifar da 22, yana zaton matakan PAM ana nuna su 0, 1, 2 da 3 Ex.ample 2: don aika siginar matakala 0123, cika filayen tare da maimaitawa na 1E A cikin RX Pattern menu, mutum zai iya bincika duk alamu waɗanda zasu iya gano kuskure. Lura cewa ƙirar TX da RX dole ne su kasance iri ɗaya don samun makullin RX kuma saboda haka sami damar yin ma'auni. Hakanan polarity na ƙirar yana da mahimmanci sosai kuma yana yin duk bambanci tsakanin samun kulle RX PLL ko babu kulle kwata-kwata. Kuna iya tabbatar da daidaiton polarity ta haɗa gefen TX-P na kebul zuwa RX-P da TX-N zuwa RX-N. idan baku mutunta wannan doka ba, zaku iya juyar da polarity daga GUI akan gefen RX kawai.

Matakan ido na ciki da na waje suna sarrafa manyan ƙima da ƙananan ƙimar idon PAM na tsakiya. Ƙimar sarrafawa masu yuwuwa suna daga 500 zuwa 1500 don kula da ido na ciki da kuma daga 1500 zuwa 2000 don ido na waje. Mafi kyawun ƙimar yawanci suna tsakiyar kewayon. Example na tweaking da Outer ido saituna aka nuna a kasa

Tsohuwar ampAn daidaita ikon litude a cikin ƙimar millivolt amma baya ƙyale ku canza saitunan daidaitawa. Idan kana buƙatar canza saitunan taɓa FFE, da fatan za a je zuwa sannan kunna 'Advanced Settings'. Wannan yana ba ku damar sarrafa ƙimar gaba da gaba ga kowane tashoshi, amma ampBa za a nuna ƙimar litude a millivolt ba. Ta tsohuwa, ana nuna taps guda uku kuma ana iya gyara su. Ka yi tunanin amplitude a matsayin mai daidaita dijital tare da babban famfo, pre-cursor (pre-mphasis) da kuma bayan siginan kwamfuta (bayan-mahimmanci). A cikin al'ada na yau da kullun, pre- da post-cursors an saita su zuwa sifili; da ampAna sarrafa litude ta amfani da babban famfo. Babban, pre- da bayan-taps suna amfani da ƙimar dijital tsakanin -1000 da +1000. Ƙarawa da rage siginan kwamfuta na gaba da na baya shima zai shafi amplitude. Da fatan za a tabbatar cewa jimlar pre-, post da manyan siginan kwamfuta sune ≤ 1000 don samun kyakkyawan aiki. Idan adadin famfo ya wuce 1000, ba za a iya kiyaye layin siginar TX ba.

Tasirin pre-cursor akan bugun jini

Tasirin bayan siginan kwamfuta akan bugun jini

Hakanan mai amfani zai iya gyara ma'aunin taps 7 maimakon kawai taps 3 ta danna ƙarin saiti sannan duba akwatin na tep 7.

Bayan amfani da saitunan, ikon taɓawa bakwai zai kasance don yin gyara a ƙarƙashin ampmenu na litude. Ana iya ayyana kowane ɗayan famfo 7 azaman babban famfo; a wannan yanayin, taps da suka gabace shi zai zama pre-cursors. Hakanan, famfo masu bin babban famfo zasu zama masu siginan kwamfuta.

Yanke shi ne yanayin tsoho. Mai kashe tunani yana cin ƙarin ƙarfi amma yana da amfani ga tashoshi masu ƙarfi waɗanda ke ɗauke da sauye-sauye na impedanceKuskuren shigar da ake aiwatarwa akan toshe ta hanyar toshewa. Kowane toshe yana 64 bits, an raba shi zuwa 32 MSBs da 32 LSBs.

ExampTasirin Saitunan Ciki da Waje:

Ɗaukar Ma'auni

Karatun Rabo Kuskure
Don samun damar fara ma'aunin BER, tashoshin kayan aikin yakamata su kasance cikin yanayin madauki, wanda ke nufin tashar TX yakamata a haɗa ta tashar RX kuma tsarin PPG da ED yakamata suyi daidai. Ba lallai ba ne mutum ya buƙaci samar da PRBS daga kayan aikin jiki guda ɗaya - tushen na iya zama kayan aiki daban-daban kuma mai gano kuskure na AT4039E zai iya samun agogon kansa daga bayanan da aka karɓa (babu buƙatar hanyar haɗin agogo daban). Koyaya, idan ana amfani da lambar Grey a cikin tushen, yakamata mutum ya gaya wa mai karɓa ya yi tsammanin lambar Grey shima. Idan akwai wasa a cikin tsari, polarity, da coding amma har yanzu babu kulle, za a iya samun musanyar MSB/LSB a gefe ɗaya.

Sarrafa BER

Ma'aunin BER na iya gudana a cikin ci gaba da yanayin kuma ba zai tsaya ba har sai mai amfani ya shiga tsakani kuma ya danna maɓallin tsayawa. Hakanan za'a iya saita BER don gudana har sai an kai ƙimar manufa ko har sai an watsa takamaiman adadin ragowa (raka'a 10 gigabits). Mai ƙidayar lokaci yana ƙyale mai amfani saita lokaci don BER ya tsaya.

Teburin Sakamako na BER
Ana nuna taƙaitaccen ma'auni na BER a cikin fare mai zuwa:

BER Graph

Ƙimar BER da aka tattara akan jadawali

Binciken Histogram
Histogram shine kayan aikin zaɓi don magance hanyar haɗin yanar gizo. Kuna iya la'akari da shi a matsayin iyakar da aka gina a cikin mai karɓa kuma yana aiki ko da ba ku da kulle ƙirar ƙira. Don duka alamun NRZ da PAM, ana nuna jadawali na histogram kamar haka:

• Mafi ƙarancin kololuwar mafi kyawun aikin siginar PAM kuma ƙarancin jitter. Ana iya haɓaka waɗannan kololuwar ta amfani da abubuwan da aka riga aka ambata.
• Kwatanta iri ɗaya tana aiki kamar na PAM histogram.

Sigina zuwa Binciken Rabon Hayaniya

SNR hanya ce mai ƙididdigewa don auna ƙarfin siginar da aka karɓa - an ba da ita a cikin dB.

 

Shiga file Tsari
A cikin AT4039E BERT akwai log file tsarin, inda kowane keɓanta da GUI ke sarrafawa ko wanda ba a kula dashi ba zai sami ceto. Bayan gudu na farko, GUI yana ƙirƙirar a file a cikin babban kundin adireshi/bangaren log, kuma yana adana duk keɓantacce. Idan mai amfani ya sami matsala da software, zai iya aika banda file zuwa ga tawagarmu.

Lura: ban da file za a share ta atomatik bayan kowane mako 1 na aiki.

Ajiye da Load da Saituna
Kayan aiki koyaushe yana adana saitunan da aka yi amfani da su na ƙarshe a cikin ƙwaƙwalwar mara mara ƙarfi. Ana dawo da waɗannan saitunan ta atomatik lokaci na gaba da kuka haɗa zuwa BERT. Bugu da kari, zaku iya ƙirƙira da adana saitin saitin ku files kuma zai iya komawa zuwa gare su lokacin da ake bukata. Nemo menu na Ajiye/Load a cikin mashaya menu na GUI.

Yadda ake Canja Adireshin IP da Sabunta Firmware

Don bayani game da canza adireshin IP da sabunta firmware na AT4039E, da kyau zazzage babban fayil "Maintenance" daga https://multilaneinc.com/products/at4039e/. Babban fayil ɗin ya ƙunshi abubuwa masu zuwa:

• ML Maintenance GUI
• Kebul Driver
• Jagorar Mai Amfani

multilaneinc.com

Takardu / Albarkatu

MultiLane AT4039E GUI Bit Mai Gwajin Kuskuren Ratio [pdf] Manual mai amfani 4-Lane, 23-29 46-58 GBaud, Bit Error Ratio Tester 400G, AT4039E GUI, AT4039E GUI Bit Ratio Tester

Magana

• Manual mai amfani