Fiber Optic Cellular Repeaters (FOR) sisitimu yakagadzirirwa kugadzirisa matambudziko eiyo isina simba nharembozha siginecha munzvimbo iri kure neBTS (Base Transceiver Station) uye ine fiber optic tambo network pasi pevhu.
Gadzirisa chero nzvimbo dzakaoma-kusvika-kusvika!
Iyo yese FOR system ine zvikamu zviviri: Donor Unit uye Remote Unit.Ivo vanoendesa pachena uye nekukudza iyo isina waya siginecha pakati peBTS (Base Transceiver Station) uye nharembozha kuburikidza nefiber optic tambo.
Iyo Donor unit inobata iyo BTS siginecha kuburikidza yakananga coupler yakavharwa kuBTS (kana kuburikidza nemhepo yakavhurika RF kutapurirana kuburikidza neDonor Antenna), yozoishandura kuita optic chiratidzo uye yoendesa chiratidzo chakasimudzirwa kuRemote Unit kuburikidza nefiber optic tambo.Iyo Remote Unit inodzoreredza iyo optic siginecha kuita chiratidzo cheRF uye ichipa chiratidzo kunzvimbo dzisina kuvharwa netiweki.Uye iyo nharembozha inokwidziridzwa uye inotumirwa kuBTS kuburikidza neyakapesana.
KingtoneFiber Optic Repeaters system yakagadzirirwa kugadzirisa matambudziko eiyo isina simba nharembozha, iyo yakachipa zvakanyanya pane kuseta Base Station nyowani (BTS).Kushanda kukuru kweRF Repeaters system: Kune iyo yepasi link, masiginecha kubva kuBTS anopihwa kuDonor Unit (DOU), iyo DOU yobva yashandura RF siginecha kuita laser siginecha yobva yadyisa kune fiber kuendesa kuRemote Unit (ROU).RU yobva yashandura siginecha yelaser kuita chiratidzo cheRF, uye shandisa Power Amplifier kukwidziridza kune yakakwirira simba kuIBS kana yekuvhara antenna.Kune iyo kumusoro link, Iri reverse process, masaini kubva kumushandisi nhare anopihwa kuDOU's MS port.Via duplexer, chiratidzo chinokwidziridzwa neakadzika ruzha amplifier kuvandudza simba rechiratidzo.Ipapo masaini anopihwa kuRF fiber optical module yobva yashandurwa kuita masaini emalaser, ipapo iyo laser siginecha inotumirwa kuDOU, iyo laser siginecha kubva ROU inoshandurwa kuita RF chiratidzo neRF optical transceiver.Ipapo masaini eRF anokwidziridzwa kune mamwe masaini esimba anopihwa kuBTS.
Features
- Aluminium-alloy casing ine yakakwirira kuramba guruva, mvura uye corroding;
- Omni-directional yekuvhara antenna inogona kugamuchirwa kuwedzera kuwedzera kufukidzwa;
- Kutora WDM (Wavelength Division Multiplexing) module yekuona kureba-kure kutapurirana;
- Yakagadzikana uye yakagadziridzwa chiratidzo chekufambisa kwemhando;
- Imwe Donor Unit inogona kutsigira kusvika ku4 Remote Units kuti iwedzere kushandiswa kwefiber optic cable;
- RS-232 ports inopa zvinongedzo kubhuku rekutarisa remunharaunda uye kune yakavakirwa-mukati isina waya modem kutaurirana neNMS (Network Management System) iyo inogona kutarisa kure kure mamiriro ekushanda kweanodzokorora uye kudhawunirodha maparamita ekushanda kune anodzokorora.
| Pro | Con |
|---|---|
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DOU+ROU Yese Sistimu Yehunyanzvi Kutsanangurwa
| Items | Testing Condition | Kutsanangurwa Kwehunyanzvi | Memo | |
| uplink | downlink | |||
| Frequency Range | Kushanda mubhendi | 824MHz-849MHz | 869MHz-894MHz |
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| Max Bandwidth | Kushanda mubhendi | 25MHz |
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| Simba reKubuda (Max.) | Kushanda mubhendi | 37±2dBm | 43±2dBm | Customized |
| ALC (dB) | Nyora wedzera 10dB | △Po≤±2 |
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| Max Gain | Kushanda mubhendi | 90±3dB | 90±3dB | ine 6dB optic nzira kurasikirwa |
| Gain Adjustable Range (dB) | Kushanda mubhendi | ≥30 |
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Gain Adjustable Linear (dB) | 10dB | ±1.0 |
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| 20dB | ±1.0 |
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| 30dB | ±1.5 |
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| Ripple mubhendi(dB) | Inoshanda Bandwidth | ≤3 |
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| Max.input level | Ramba 1min | -10 dBm |
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| Transmission Kunonoka (isu) | Kushanda mubhendi | ≤5 |
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| Noise Figure (dB) | Kushanda mubhendi | ≤5 (Max.gain) |
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| Intermodulation Attenuation | 9kHz～1GHz | ≤-36dBm/100kHz |
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| 1GHz ~12.75GHz | ≤-30dBm/1MHz |
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| Port VSWR | BS Port | ≤1.5 |
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| MS Port | ≤1.5 | |||
