SR812ST Laba jiho Bannaanka 2-wax soo saarka Fiber Optical Receiver
Nambarka Qaabka: SR812ST
Summada: Jilicsan
MOQ: 1
Waxqabadka AGC heer sare ah
Xakamaynta Microprocessor, Bandhig Dijital ah
Habka SMT waxa ay wanaajisaa gudbinta ishaarada sawirka
01
Sharaxaada Alaabta
Dulmar Kooban
SR812ST(R) waa heerkeenii ugu dambeeyay ee heerka sare ee laba-soo-saarka CATV soo-dhoweeyaha indhaha. Cod-weyneeye ka hor wuxuu qaataa-GaAs MMIC oo buuxa, cod-sameeyaha dambe wuxuu qaataa moduleka GaAs. Naqshad wareeg ah oo la hagaajiyay oo ay weheliso 10 sano ee waayo-aragnimada naqshadeynta xirfadeed, ka dhig qalabku inuu gaaro tusmooyinka waxqabadka wanaagsan. Xakamaynta Microprocessor, soo bandhigida dhijitaalka ah ee cabirrada, khaladka injineernimada ayaa si gaar ah u fudud. Waa qalabka ugu muhiimsan ee lagu dhisayo shabakada CATV.
Tilmaamaha Waxqabadka
- Jawaab sare tuubada beddelka sawir-qaadaha PIN.
- Naqshad wareeg ah oo la wanaajiyey, wax soo saarka habka SMT, iyo dariiqa calaamadaha la hagaajiyay ayaa ka dhigaya gudbinta signalka sawir-qaadista mid siman.
- Chip attenuation RF gaar ah, oo leh feejignaan RF wanaagsan iyo toosan siman, saxsanaan sare.
- Qalabka cod-weyneeye ee GaAs, koronto laba jibaaran, oo leh faa'iido sare iyo qallooc hoose.
- Hal Chip Microcomputer (SCM) qalabka xakamaynta ee shaqeynaya, LCD wuxuu soo bandhigayaa xuduudaha, ku habboonaanta iyo hawlgalka dareenka leh, iyo waxqabadka xasilloon.
- Waxqabadka AGC heer sare ah, marka cabbirka awoodda indhaha ee wax gelinta uu yahay -9 ～＋2dBm, heerka wax soo saarku isma beddelo, iyo CTB iyo CSO asal ahaan isma beddelaan.
- Xidhiidhka isgaadhsiinta xogta ee kaydsan, wuxuu ku xidhi karaa fasalka Ⅱ maamulka shabakada jawaabta, iyo marin u helka nidaamka maaraynta shabakada.
Soo-celinta soo-celinta waxay dooran kartaa qaabka dillaaca si uu si xooggan u yareeyo isku-dhafka dhawaaqa oo loo yareeyo lambarka hore ee qaataha.
Shuruudaha Tijaabada Linkiga
Halbeegyada farsamo ee buug-gacmeedkan sida waafaqsan habka cabbirka ee GY/T 194-2003
1. Qaybta hore ee indhaha ka hel qayb: oo leh 10km fibre aragga caadiga ah, attenuator indhaha aan fiicneyn, iyo gudbiyaha indhaha ee caadiga ah ayaa ka kooban isku xirka tijaabada. Deji 59 PAL-D calaamada kanaalka TV-ga analoogga ah ee u dhexeeya 45/87MHz～550Mhz hoostiisa luminta xiriirka la cayimay. Gudbi signalka habaynta dhijitaalka ah ee u dhexeeya 550Mhz～862/1003MHz, heerka signalka habaynta dhijitaalka ah (8 MHz bandwidth) waxa uu ka hooseeyaa 10dB marka loo eego heerka signalka analooga. Marka awoodda wax-soo-saarka ee soo-dhoweeyaha indhaha ay tahay -2dBm, heerka wax-soo-saarka RF waa 108dBμV, oo leh 9dB wax soo saarka, cabbir C/CTB, C/CSO, iyo C/N.
2. Qaybta gudbinta indhaha ee gadaale: Isku xidhka fidsan iyo kala duwanaanta firfircoonida NPR waa tusmooyinka isku xirka kuwaas oo ka kooban gudbiyaha indhaha ee gadaale ah iyo qaataha indhaha ee gadaale.
Fiiro gaar ah: Marka heerka wax soo saarka ee la qiimeeyay uu yahay qaabeynta buuxda ee nidaamka iyo helitaanka awoodda indhaha waa -2dBm, qalabku wuxuu la kulmaa heerka ugu sarreeya ee wax soo saarka index index. Marka qaabeynta nidaamku hoos u dhaco (taas oo ah, kanaalada gudbinta dhabta ah waxay yareeyaan), heerka wax soo saarka qalabka waa la kordhin doonaa.
Ogeysiis Saaxiibtinimo: Soo jeedi in aad calaamadda RF u dejiso 6 ~ 9dB soo-saarka foorarsiga ee arjiga injineernimada si loo hagaajiyo tusaha aan tooska ahayn (hoosta noode) ee nidaamka fiilada.
| SR812ST Laba jiho Bannaanka 2-wax soo saarka Fiber Optical Receiver | |||||
| Shayga | Unug | Qiyaasaha Farsamada | |||
| Qaybta qaabilaadda indho-indheynta hore | |||||
| Qiyaasaha indhaha | |||||
| Helitaanka awoodda indhaha | dBm | -9 ~ +2 | |||
| Waayida Soo noqoshada indhaha | dB | >45 | |||
| Dhererka Mowjadda Aragga | nm | 1100 ~ 1600 | |||
| Nooca Xidhiidhiyaha indhaha |
| FC/APC, SC/APC ama uu cayimay isticmaaluhu | |||
| Nooca Fiber |
| Qaab kali ah | |||
| XiriirintaWaxqabadka | |||||
| C/N | dB | ≥ 51 (-2dBm gelinta) | |||
| C/CTB | dB | ≥ 65 | Heerka soosaarka 108 dBμV 6dB oo dheellitiran | ||
| C/CSO | dB | ≥ 60 | |||
| Halbeegyada RF | |||||
| Xaddiga Soo noqnoqda | MHz | 45 ~ 862 | 45 ~ 1003 | ||
| Flatness in Band | dB | ±0.75 | ±0.75 | ||
| Heerka Soo saarista | dBμV | ≥ 108 | ≥ 108 | ||
| Heerka ugu badan ee soo saarida | dBμV | ≥ 114 | ≥ 112 | ||
| Waxsoosaarka Soo-noqoshada Khasaaraha | dB | (45 ~ 550MHz）≥16/(550~1000MHz)≥14 | |||
| Wax-soo-saarka Wax-soo-saarka | Ω | 75 | 75 | ||
| Xakamaynta Elektarooniga ah ee EQ Range | dB | 0～10 | 0～10 | ||
| Xakamaynta Elektarooniga ah ee ATT Range | dBμV | 0～20 | 0～20 | ||
| Soo celi OpticalEhadafPfanka | |||||
| Qiyaasaha indhaha | |||||
| Mawjada Gudbinta indhaha | nm | 1310 ± 10, 1550 ± 10 ama uu qeexay isticmaaluhu | |||
| Soo saarida Awoodda indhaha | mW | 0.5, 1, 2 | |||
| Nooca Xidhiidhiyaha indhaha |
| FC/APC, SC/APC ama uu cayimay isticmaaluhu | |||
| Halbeegyada RF | |||||
| Xaddiga Soo noqnoqda | MHz | 5 ~ 65 (ama uu qeexay isticmaaluhu) | |||
| Flatness in Band | dB | ±1 | |||
| Heerka galitaanka | dBμV | 72 ~ 85 | |||
| Wax-soo-saarka Wax-soo-saarka | Ω | 75 | |||
| Kala duwanaanshaha firfircoon ee NPR | dB | ≥15 (NPR≥30 dB) Isticmaal laser DFB | ≥10 (NPR≥30 dB) Isticmaal FP laser | ||
| Waxqabadka Guud | |||||
| Supply Voltage | V | A: AC (150 ~ 265) V; B: AC (35 ~ 90) V | |||
| Heerkulka shaqada | ℃ | -40 ~ 60 | |||
| Heerkulka Kaydinta | ℃ | -40 ~ 65 | |||
| Qoyaanka Qaraabada | % | Ugu badnaan 95% ma jiro uumi | |||
| Isticmaalka | VA | ≤ 30 | |||
| Cabirka | mm | 260 (L) ╳ 200 (W) ╳ 130 (H) | |||
SR812ST Laba jiho Banaanka 2-Wax soo saarka Fiber Optical Speciver Speciver Sheet.pdf
