1. Habka hawlgelinta BOB:
1. Habka hawlgelinta BOB ee HDV Phoelectron Technology LTD:
Inta badan waa in la tirtiro awoodda indhaha iyo khariidadda indhaha ee dabar goynta dhamaadka gudbinta, iyo qaataha waxa uu u baahan yahay in uu cabbiro dareenkiisa iyo la socodka RSSI.
Tilmaanta hawlgelinta BOB:
| imtixaan | halbeegga | tilmaamo | unug | hadallo | |||
| shaqayn | sifo | sharaxaad | Min. | Nooca | Max | ||
| Qayb ka saarida | TxPower | Tx gudbinta awooda | 1.2 | 1.5 | 1.8 | dBm | Qiyaasta gaarka ah, tusmada waa la wanaajin karaa iyadoo loo eegayo waxqabadka BOSA |
| Xaddiga Dheeraadka ah | saamiga baabi'inta | 9.5 | 12 | 14 | dB | ||
| Indhaha Cross | jaantuska isha isgoyska | 45 | 50 | 55 | ％ | ||
| RxPoCalPoint_0 | Qalabaynta Rx xaaladda halbeegga koowaad | -10 | -10 | -10 | dB | ||
| RxPoCalPoint_1 | Qalabaynta Rx xaaladda cabbirka labaad | -20 | -20 | -20 | dB | ||
| RxPoCalPoint_2 | Qalabaynta Rx xaaladda halbeegga saddexaad | -30 | -30 | -30 | dB | ||
| Qaybta tijaabada | TxPower | Tx gudbinta awooda | 0.5 | 2.5 | 4 | dBm | Qiyaasta gaarka ah, tusmada waa la wanaajin karaa iyadoo loo eegayo waxqabadka BOSA |
| TxPo_DDM | Gudbinta awoodda la socodka indhaha | 0.5 | 2.5 | 4 | dB | ||
| DiffTxPower | Gudbinta la socodka kala duwanaanshaha awoodda indhaha | -1 | 0 | 1 | ％ | ||
| Xaddiga Dheeraadka ah | Saamiga dabar goynta | 9 | 11 | 14 | dB | Qiyaasta gaarka ah, tusmada waa la wanaajin karaa iyadoo loo eegayo waxqabadka BOSA | |
| Indhaha Cross | jaantuska isha isgoyska | 45 | 50 | 55 | dB | ||
| Indhaha Margin | Sawirka indhaha Magin | 10 | 10 | 10 | dB | ||
| TxCurrent | qiiqa hadda jira | 180 | |||||
| TotalCurrent | wadarta hadda | 100 | 250 | 300 | |||
| Dareenka | dareen | -27 | -27 | ||||
2. Jaantuska xidhiidhka BOB ee HDV Phoelectron Technology LTD.:
Jaantuska isku xirka tijaabada BOB ee caadiga ah, tijaabada hal-jidka ah, isku xirka dibadda ee adag, attenuator, mitirka qaladka, mitirka korontada, CDR iyo qalabka kale ayaa u baahan in si gaar ah loo iibsado.Goob kastaa waxay u baahan tahay kombuyuutar si uu u taageero imtixaanka.
1. Hordhaca ES-BOBT8 taxanaha qalabka tijaabada BOB:
2. Waxay taageeri kartaa ilaa kanaalka 8 ee tijaabada BOB, mitirka korantada isku dhafan ee gudaha iyo attenuator, waxay dhamaystiri kartaa diritaanka iyo helitaanka qaladka iyo tijaabinta isku mar;
3. Shaqada BERT ee isku-dhafan iyo 2xSFP + isha iftiinka iftiinka, waxay taageeri kartaa 1.25G ~ 10G soo saarida calaamadaha indhaha, si ay u bixiso isha iftiinka ee tijaabada dareenka BOB;
4. Isku-dhafan CDR Kiciyeyaasha, gudaha gudaha is-dhisay ee soo kabashada calaamada saacada, waxay bixin kartaa calaamada saacada ee looga baahan yahay tijaabada jaantuska indhaha indhaha;
5. Mitirka korantada ee is-xakamaynta ayaa bixin karta ogaanshaha cabbirka awoodda indhaha ee caadiga ah.
Nidaamka tijaabada ee taxanaha ES-BOBT8 wuxuu bixiyaa xalal qalab oo dhamaystiran oo tijaabo ah, kaas oo bixin kara ugu badnaan kanaalka 8 ee imtixaanka ONU BOB.Tijaabada BER iyo isha iftiinka, attenuator, mitirka korantada, qaybta mawjadda dhererka, beddelka indhaha iyo qalabyada kale ayaa lagu dhex daray hal qalab, oo leh xirfadle tijaabinta BOB software otomatiga, waxay bixin kartaa go'an dhammaystiran oo ah xalalka tijaabada BOB.
2,Mabda'a shaqada hardware:
Doorka taxanaha ES-BOBT8 ee nidaamyada qalabka BOB:
1.In geeddi-socodka wax-soo-saarka, hubi in awoodda iftiinka dekedda ee ONU ay tahay mid caadi ah waqtiga dhabta ah
2. Hubi in qiimaha awoodda indhaha ee la helay ee ay akhriday dekedda indhaha ee ONU ay sax tahay.
Mabda'a shaqada ee nidaamka qalabka:
1. Software-ka kombuyuutarka sare ee nidaamka qalliinka wuxuu ku xiran yahay interface USB ee SCM U1 (model C8051F340) iyada oo loo marayo interface USB ee nidaamka tijaabada si loo xaqiijiyo isku xirka man-mashiinka;
2. SCM U1 (model C8051F340) waxay maamushaa U3 (bit qalad detector chip VSC8228, signal generator), module OLT (PON SFP), ADC (oo ay hirgelisay ADL5303 iyo AD5593), iyo DAC (oo ay hirgeliyeen MAX4230 iyo AD5593) iyada oo loo marayo IPS. baska
3. Chip-ka qaladka yaraa ee VSC8228 waxa uu soo diraa calaamada nooca koodka la cayimay iyo heerka sida ku cad tilmaamaha, oo waxa uu wadaa moduleka OLT si uu u soo diro calaamada indhaha ee nooca code ee u dhigma iyo heerka iyada oo loo marayo interface SerDES.Dhererka hirarka OLT ee la diray waa 1490nm, iftiinkuna wuxuu u qaybsan yahay siddeed iyada oo loo marayo kala qaybiyaha.Ka dib markii DAC kantaroolka attenuator-ka VOA ay hoos u dhigto awoodda indhaha ee la cayimay, waxay ku xidhan tahay dekedda indhaha ee ONU.ONU waxay akhridaa awoodda indhaha ee u dhiganta oo waxay la barbardhigtaa qiimaha dhabta ah.
4. Habka fulinta DAC: SCM U1 (model C8051F340) waxay u dirtaa xogta DAC AD5593 iyada oo loo marayo baska I2C, dekedda I/O ee AD5593 waxay soo saartaa signalka korantada, iyo signalka korantada waxaa laga soo saaraa cod-weyneeye MAX4230, kaas oo lagu dabaqo pin-ka soo gelida danab ee attenuator-ka VOA, si iftiinka ka soo baxaya moduleka PON OLT loo dhimo awoodda indhaha ee la cayimay, ka dibna lagu xiro dekedda indhaha ee ONU.
5. Habka hirgelinta ADC: Ka dib marka iftiinka uu soo saaro ONU uu ogaado PD (sawir-qaade), PD waxay soo saartaa qulqulka calaamadaha ee cabbirka kala duwan iyadoo loo eegayo xoogga ishaarka indhaha, waxaana loo beddelaa koronto leh cabbir tiro ballaaran. iyo saxnaanta sare iyada oo loo marayo beddelaha logarithmic ADL5303.Qiimaha waxaa aqoonsaday AD5593 waxaana loo beddelaa calaamad dhijitaal ah iyada oo loo marayo baska I2C iyada oo loo marayo SCM U1 (model C8051F340) oo ugu dambeyntii lagu soo bandhigay kumbuyuutarka martida loo yahay.