SR812ST Bidirectional Outdoor 2-Output Fiber Optical Receiver
Nomoro ea Mohlala: SR812ST
Lebitso: Bonolo
MOQ: 1
Ts'ebetso e ntle ea AGC
Taolo ea Microprocessor, Pontšo ea Dijithale
SMT Process Optimize Photoelectric Signal Transmission
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Tlhaloso ea Sehlahisoa
Kakaretso e Khutšoanyane
SR812ST(R) ke seamoheli sa rona sa morao-rao sa maemo a holimo sa maemo a mabeli sa CATV sa marang-rang. Pre-amplifier e nka MMIC e felletseng ea GaAs, post-amplifier e amohela mojule oa GaAs. Moralo o ntlafalitsoeng oa potoloho hammoho le lilemo tsa rona tse 10 tsa boiphihlelo ba boqapi, li etsa hore lisebelisoa li fihlelle li-index tse ntle tsa ts'ebetso. Taolo ea Microprocessor, pontšo ea dijithale ea li-parameter, ho lokisa bothata ba boenjiniere ho bonolo haholo. Ke thepa ea mantlha ea ho aha marang-rang a CATV.
Litšobotsi tsa Ts'ebetso
- Karabelo e phahameng ea PIN ea phetoho ea lifoto tsa motlakase.
- Moralo o ntlafalitsoeng oa potoloho, tlhahiso ea ts'ebetso ea SMT, le tsela ea mats'oao e ntlafalitsoeng e etsa hore phetiso ea lets'oao la photoelectric e be bonolo haholoanyane.
- Chip e khethehileng ea RF attenuation, e nang le RF attenuation e ntle le equilibrium linear, ho nepahala ho phahameng.
- Sesebelisoa sa amplifier sa GaAs, tlhahiso ea matla habeli, e nang le phaello e phahameng le khopamiso e tlase.
- Sesebelisoa sa taolo ea Single Chip Microcomputer (SCM) se sebetsang, LCD e bonts'a li-parameter, bonolo le ts'ebetso e hlakileng, le ts'ebetso e tsitsitseng.
- Ts'ebetso e ntle haholo ea AGC, ha matla a optical a kentsoeng a le －9～＋2dBm, boemo ba tlhahiso bo lula bo sa fetohe, 'me CTB le CSO ha e le hantle ha li fetohe.
- Sehokelo sa puisano sa data se bolokiloeng, se ka hokahana le sehlopha sa Ⅱ se arabelang taolo ea marang-rang, le phihlello ea sistimi ea taolo ea marang-rang.
- Ho khutla ho ka khetha mokhoa oa ho phatloha ho fokotsa haholo khokahano ea lerata le ho fokotsa nomoro ea moamoheli.
Maemo a Teko a Khokahano
Litekanyetso tsa tekheniki tsa bukana ena ho latela mokhoa oa ho lekanya oa GY/T 194-2003
1. Forward optical receive part: with 10km standard optical fiber, passive optical attenuator, le standard optical transmitter e entse sehokelo sa teko. Beha lets'oao la 59 PAL-D la analog TV sebakeng sa 45/87MHz ~ 550MHz tlasa tahlehelo e boletsoeng ea khokahano. Fetisetsa lets'oao la ho feto-fetoha ha dijithale sebakeng sa 550MHz ~862/1003MHz, boemo ba lets'oao la modulo ea dijithale (ho bandwidth ea 8 MHz) ke 10dB e tlase ho feta boemo ba se tsamaisang mats'oao a analoge. Ha matla a optical a input a receiver optical e le -2dBm, RF output level ke 108dBμV, ka 9dB output tilt, metha C/CTB, C/CSO, le C/N.
2. Karolo e fetisang ka morao ea optical: Khokahano e bataletseng le mefuta e matla ea NPR ke li-index tsa lihokelo tse entsoeng ka transmitter ea morao-rao le seamoheli sa morao-rao sa optical.
Tlhokomeliso: Ha boemo ba tlhahiso e lekantsoeng e le tlhophiso e felletseng ea sistimi mme matla a optical a amohelang e le -2dBm, sesebelisoa se kopana le boemo bo phahameng ba tlhahiso ea index ea khokahanyo. Ha tlhophiso ea sistimi e fokotseha (ke hore, likanale tsa phetisetso li fokotseha), boemo ba tlhahiso ea lisebelisoa bo tla eketseha.
Tlhokomeliso ea Setsoalle: E fana ka tlhahiso ea hore u behe lets'oao la RF ho 6 ~ 9dB tilt tlhahiso ts'ebelisong e sebetsang ea boenjiniere ho ntlafatsa index ea nonlinear (tlas'a node) ea sistimi ea cable.
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| SR812ST Bidirectional Outdoor 2-Output Fiber Optical Receiver | |||||
| Ntho | Yuniti | Tekheniki Parameters | |||
| Fetela karolo ea ho amohela optical | |||||
| Mekhahlelo ea Optical | |||||
| Ho Fumana Matla a Optical | dBm | -9 ~ +2 | |||
| Tahlehelo ea ho Khutlisa Optical | dB | > 45 | |||
| Optical Receiving Wavelength | nm | 1100 ~ 1600 | |||
| Mofuta oa Sehokelo sa Optical |
| FC/APC, SC/APC kapa e boletsoeng ke mosebelisi | |||
| Mofuta oa Fiber |
| Mokhoa o le Mong | |||
| SehokeloTshebetso | |||||
| C/N | dB | ≥ 51(-2dBm input) | |||
| C/CTB | dB | ≥65 | Boemo ba Sephetho 108 dBμV E leka-lekaneng 6dB | ||
| C/CSO | dB | ≥60 | |||
| RF Parameters | |||||
| Maqhubu a Range | MHz | 45 ~ 862 | 45 ~ 1003 | ||
| Flatness in Band | dB | ± 0.75 | ± 0.75 | ||
| Lebelo la Sephetho | dBμV | ≥ 108 | ≥ 108 | ||
| Boemo bo Phahameng ba Sephetho | dBμV | ≥ 114 | ≥ 112 | ||
| Sephetho sa ho Khutlisa Tahlehelo | dB | （45 ~550MHz）≥16/(550~1000MHz)≥14 | |||
| Sephetho se Impedans | Ω | 75 | 75 | ||
| Electronic Control EQ Range | dB | 0~10 | 0~10 | ||
| Taolo ea Elektronike ATT Range | dBμV | 0 ~ 20 | 0 ~ 20 | ||
| Khutlela OpticalEthomoPbonono | |||||
| Mekhahlelo ea Optical | |||||
| Optical Transmit Wavelength | nm | 1310±10, 1550±10 kapa e boletsoeng ke mosebelisi | |||
| Matla a Output Optical | mW | 0.5, 1, 2 | |||
| Mofuta oa Sehokelo sa Optical |
| FC/APC, SC/APC kapa e boletsoeng ke mosebelisi | |||
| RF Parameters | |||||
| Maqhubu a Range | MHz | 5 ~ 65 (kapa e boletsoeng ke mosebelisi) | |||
| Flatness in Band | dB | ±1 | |||
| Boemo ba ho Kena | dBμV | Lilemo tse 72-85 | |||
| Sephetho se Impedans | Ω | 75 | |||
| Mefuta e fapa-fapaneng ea NPR | dB | ≥15(NPR≥30 dB) Sebelisa laser ea DFB | ≥10(NPR≥30 dB) Sebelisa laser ea FP | ||
| Kakaretso ya Tshebetso | |||||
| Ho fana ka Voltage | V | A: AC (150 ~ 265) V; B: AC (35 ~ 90) V | |||
| Mocheso oa ho sebetsa | ℃ | - 40-60 | |||
| Mocheso oa polokelo | ℃ | - 40-65 | |||
| Mongobo o Batlang | % | Max 95% ha ho condensation | |||
| Tshebediso | VA | ≤30 | |||
| Boemo | mm | 260 (L) ╳ 200 (W) ╳ 130 (H) | |||
Leqephe le Khethehileng la SR812ST Bidirectional Outdoor 2-Output Fiber Optical Receiver.pdf
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