1. Kakaretso ea Sehlahisoa
SR812S ke seamoheli sa rona sa bokahohle sa CATV sa marang-rang se nang le transponder ea taolo ea marang-rang. Pre-amp e amohela all-GaAs MMIC amplify le post-amp e nka GaAs power double amplify module. Moralo o ntlafalitsoeng oa potoloho, hammoho le boiphihlelo ba meralo ea RF ea lilemo, lisebelisoa li fihlella index ea ts'ebetso e phahameng. Ke mohlala o loketseng bakeng sa marang-rang a CATV.
2. Tšobotsi
- Karabelo e phahameng ea PIN ea phetoho ea lifoto tsa motlakase, moralo oa bandwidth oa 1G.
- Attenuation le ho leka-lekanya e ka ba mofuta o tsoelang pele o fetolehangkapa kenya mofuta.(Ho ikhethela)
- Phallo e habeli ea matla, phaello e phahameng le khopamiso e tlase.
- Taolo ea Optical AGC, ha matla a ho kenya a le -7~+2dBm, boemo ba tlhahiso ha bo fetohe.
- Transponder ea marang-rang ea boikhethelo, ts'ehetso ea tsamaiso ea marang-rang ea NMS.
Ntho | Yuniti | Ke Tlanya | Mofuta oa II | Mofuta oa III | Ⅳ Mofuta |
Mekhahlelo ea Optical | |||||
Sebaka sa Optical AGC | dBm | -7 ~ +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 | ||||
RF Parameters | |||||
Maqhubu a Range | MHz | 45~862/1003 | |||
Flatness in Band | dB | ± 0.75 | |||
Sephetho sa ho Khutlisa Tahlehelo | dB | ≥14 | |||
Lebelo la Sephetho | dBμV | ≥102 | ≥102 | ≥104 | ≥108 |
Boemo bo Phahameng ba Sephetho | dBμV | ≥102 | ≥102 | ≥104 | ≥118 |
EQ | dB | 0~15 e ka fetolehang | EQ e kentsoeng e tsitsitseng | ||
ATT | dB | 0~15 e ka fetolehang | Sesenyi se tsitsitseng sa ATT | ||
C/N | dB | ≥ 51 | 84 kanale PAL-D lets'oao la analoge-2dBm ho fumana matla a opticaltekanyo ea tlhahiso, 8dBequalization | ||
C/CTB | dB | ≥65 | |||
C/CSO | dB | ≥60 | |||
Sebopeho sa generic | |||||
Matla a matla | V | AC (110~240) V kapa AC(35~90)V | |||
Boiphetetso ba sephetho | Ω | 75 | |||
Mocheso oa ho sebetsa | ℃ | - 40-60 | |||
Tšebeliso ea matla | VA | ≤ 15 | |||
Boemo | mm | 185 (L) ╳ 140 (W) ╳ 91 (H) |
SR812S Optical Receiver |
1. Optical Fiber Input |
2. Fiber ea OpticalFlange |
3. EQ e ka fetoloang |
4. ATT e ka fetoloang |
5. -20dB RF Test Port |
6. Output Tap kapa Splitter |
7. Sephetho sa RF 1 |
8. RF Output 2 |
9. Power-pass Inserter 1 |
10. Power-pass Inserter 2 |
11. Main Board Power Interface |
12. Letšoao la Matla |
13. Letšoao la matla a optical |
14. AC60V le AC220V phetohoinserter |
15. Motlakase oa AC60V |
16. Sehokelo sa data |
SR812S CATV Network RF Optical Receiver e nang le AGC Datasheet.pdf