Emebere usoro Fiber Optic Cellular Repeaters (FOR) iji dozie nsogbu nke akara ekwentị mkpanaka na-adịghị ike n'ebe dị anya na BTS (Base Transceiver Station) ma nwee netwọọdụ eriri fiber optic n'okpuru ala.
Dozie mpaghara ọ bụla siri ike iru!
Usoro FOR niile nwere akụkụ abụọ: Ngalaba inye onyinye na ngalaba dịpụrụ adịpụ.Ha na-ebufe ma na-amụba akara ngosi ikuku n'etiti BTS (Base Transceiver Station) na mobiles site na eriri fiber optic.
Ngalaba inye onyinye na-ejide akara BTS site na njikọ njikọ emechi emechi na BTS (ma ọ bụ site na mgbasa ozi RF mepere emepe site na Antenna Donor), wee gbanwee ya ka ọ bụrụ akara ngosi anya wee bufee mgbama a na-abawanye na mpaghara Remote site na eriri fiber optic.Ngalaba dịpụrụ adịpụ ga-atụgharị akara ngosi anya na mgbama RF ma nye akara ngosi na mpaghara ebe mkpuchi netwọk na-ezughị oke.A na-ebuwanyekwa mgbama mkpanaka ma bufee ya na BTS site na nke ọzọ.
KingtoneFiber Optic Repeaters usoro e mere iji dozie nsogbu nke na-adịghị ike mobile mgbaàmà, nke dị ọnụ ala karịa ịtọ ọhụrụ Base Station (BTS).Isi ọrụ nke sistemu RF Repeaters: Maka njikọ ala, akara sitere na BTS na-enye onyinye inye onyinye (DOU), DOU wee gbanwee akara ngosi RF ka ọ bụrụ akara laser wee nye nri na eriri iji bufee na Remote Unit (ROU).RU wee gbanwee akara laser ka ọ bụrụ akara RF, wee jiri Power Amplifier mee ka ike dị elu na IBS ma ọ bụ antenna mkpuchi.Maka njikọ elu, Bụ usoro ntụgharị, a na-enye akara sitere na ekwentị mkpanaaka na ọdụ ụgbọ mmiri DOU's MS.Site na duplexer, mgbama na-abawanye site na ụda mkpọtụ dị ala iji kwalite ike mgbaama.Mgbe ahụ, a na-enyefe akara ngosi na RF fiber optical module wee gbanwee gaa na akara laser, mgbe ahụ, a na-ebufe akara ngosi laser na DOU, akara ngosi laser sitere na ROU na-atụgharị gaa na mgbaàmà RF site na transceiver RF.Mgbe ahụ, a na-ebuli akara ngosi RF ka ọ bụrụ akara ike ọzọ enyere na BTS.
Atụmatụ
- Aluminom-alloy casing nwere nnukwu iguzogide uzuzu, mmiri na corroding;
- Enwere ike ịnakwere antenna mkpuchi ụzọ Omni iji gbasaa mkpuchi ọzọ;
- Ịnabata WDM (Wavelength Division Multiplexing) modul iji ghọta nnyefe dị anya;
- Ịdị mma na mma nnyefe mgbaàmà;
- Otu onye inyeaka nwere ike ịkwado ihe ruru nkeji 4 dịpụrụ adịpụ iji mekwuo ojiji nke eriri fiber optic;
- Ọdụ ụgbọ mmiri RS-232 na-enye njikọ na akwụkwọ ndetu maka nleba anya mpaghara yana modem ikuku arụnyere n'ime ya iji kparịtara NMS (Sistemụ Njikwa Network) nke nwere ike na-ahụ maka ọnọdụ ọrụ nke onye na-emegharị ihe na budata paramita arụmọrụ na onye na-emegharị ya.
| Pro | Con |
|---|---|
|
|
DOU+ROU Nkọwapụta nka na ụzụ sistemụ niile
| Ihe | Ọnọdụ ule | Nkọwa nka nka | Memo | |
| elulink | downlink | |||
| Oke ugboro ugboro | Na-arụ ọrụ na band | 824MHz-849MHz | 869MHz-894MHz |
|
| Oke bandwit | Na-arụ ọrụ na band | 25MHz |
| |
| Ike mmepụta (Max.) | Na-arụ ọrụ na band | 37 ± 2dBm | 43 ± 2dBm | ahaziri |
| ALC (dB) | Ntinye tinye 10dB | △Po≤±2 |
| |
| Ọnụ ego kacha mma | Na-arụ ọrụ na band | 90±3dB | 90±3dB | na 6dB optic ụzọ ọnwụ |
| Nweta oke ngbanwe (dB) | Na-arụ ọrụ na band | ≥30 |
| |
|
Nweta Linear na-agbanwe agbanwe (dB) | 10dB | ±1.0 |
| |
| 20dB | ±1.0 |
| ||
| 30dB | ±1.5 |
| ||
| Ripple na Band (dB) | Bandwit dị irè | ≤3 |
| |
| Ọkwa ntinye kacha | Gaa n'ihu 1min | -10 dBm |
| |
| Ogbu oge nnyefe(anyị) | Na-arụ ọrụ na band | ≤5 |
| |
| Ọnụ ọgụgụ mkpọtụ (dB) | Na-arụ ọrụ na band | ≤5 (Max.gain) |
| |
| Intermodulation Attenuation | 9kHz ruo 1 GHz | ≤-36dBm/100kHz |
| |
| 1GHz ruo 12.75GHz | ≤-30dBm/1MHz |
| ||
| Port VSWR | Ọdụ ụgbọ mmiri BS | ≤1.5 |
| |
| MS Port | ≤1.5 | |||
