Mofani oa lithapo tsa 3 tse kaholimo ho 3 tse bululetsoeng ke moea, GL e na le boiphihlelo ba lilemo tse fetang 17, Kajeno, re tla hlahisa thapo e khethehileng ea fiber optic SFU (Smooth Fiber Unit ).
The Smooth Fiber Unit (SFU) e na le bongata ba radius e tlaase e kobehileng, ha ho na likhoele tsa metsi tsa G.657.A1, tse kenngoeng ke lera le omeletseng la acrylate 'me le sirelelitsoe ke karolo e ka ntle ea polyethylene e boreleli, e nyenyane, bakeng sa ho sebelisoa marang-rang a ho fihlella. Ho kenya: ho foka ka har'a li-microducts tsa 3.5mm. kapa 4.0mm. (ka hare ho bophara).
1. Kakaretso
1.1 Tlhaloso ena e akaretsa litlhoko tsa phepelo ea likhoele tsa fiber ea optical mode e le 'ngoe.
1.2 Mode o le mong optical fiber cable e lumellana le litlhoko tsa tlhaloso ena 'me ka kakaretso e kopana le Keletso efe kapa efe ea morao-rao ea ITU-T ea G.657A1
2. Litšobotsi tsa fiber
2.1 G.657A
2.1.1 Litšobotsi tsa thutatekanyo
Lintlha tsa Tekheniki:
| Ho fokotseha (dB/km) | @1310nm | ≤0.34dB/km |
|
| @1383nm | ≤0.32dB/km |
|
| @1550nm | ≤0.20dB/km |
|
| @1625nm | ≤0.24dB/km |
| Phasano | @1550nm | ≤18ps/(nm.km) |
| @1625nm | ≤22ps/(nm.km) | |
| Zero-Dispersion wavelength | 1302-1322nm | |
| Letsoapo la Zero-Dispersion | 0.089ps(nm2.km) | |
| Mokhoa oa sebaka sa bophara @1310nm | 8.6±0.4um | |
| Mokhoa oa sebaka sa bophara @1550nm | 9.8±0.8um | |
| PMD Max.boleng ba fiber ho reelMax.designed value bakeng sa sehokelo | 0.2ps/km 1/20.08ps/km 1/2 | |
| Cable cutoff wavelength, λcc | ≤1260nm | |
| Litšobotsi tsa Geometrical | ||
| Bophara ba ho roala | 124.8±0.7 um | |
| Ho koahela ho se pota-potile | ≤0.7% | |
| Phoso ea Core/Cladding Concentricity | ≤0.5um | |
| Bophara ba fiber e nang le kobo (e se nang mebala) | 245±5um | |
| Phoso ea concentricity/Cladding | ≤12.0um | |
| Mokokotlo | ≥4m | |
| Litšobotsi tsa mochini | ||
| Tlhahlobo ea bopaki | ≥0.69Gpa | |
| Tahlehelo ea macro-bend ho 1550nm Ø20mm, 1 e fetoha | ≤0.25dB | |
| Ø30mm, 10 mothinya | ≤0.75dB | |
| Ho lahleheloa ke macro-bend ho 1625nm Ø20mm, 1 turn | ≤1.5 dB | |
| Ø30mm,10turn | ≤1.0dB | |
| Litšobotsi tsa tikoloho @1310nm le 1550nm | ||
| Phokotso e bakoang ke mocheso (-60 ℃~+85 ℃) | ≤0.05dB | |
| Mocheso o omileng o indeced attenuation (85 ℃ ± 2 ℃, RH85%, matsatsi a 30) | ≤0.05dB | |
| Ho qoelisoa ka metsing ho indeced attenuation (23 ℃ ± 2 ℃, matsatsi a 30) | ≤0.05dB | |
| Mocheso o mongobo o fokotsehile (85 ℃ ± 2 ℃, RH85%,30dyas) | ≤0.05dB/km | |
3 Optical Fiber Cable
3.1 Karolo ea sefapano
| Fiber optic | Mofuta | Mokhoa o le mong G657A1 2-12 |
| Diameter ea cable | mm | 1.1-1.2 |
| Boima ba thapo | (kg/km) | 2.2±20% |
| Bophelong | lilemo | ≥25 |
| Lumella Matla a Tensile | Nako e telele: | 20N |
| Matla a pshatla | Nako e khutšoane: | 100N/100mm |
| Min Bending raduis | Tshebetso | 20 OD |
| Ho beha | 15 OD | |
| Boemo ba mocheso | Ho beha | -10+60 ℃ |
| Phetoho le ts'ebetso | -20+70 ℃ |
3.3 Tshebetso
| NO | ITEM | TEKO MOKHOA | TS'ELISO |
| 1 | Ts'ebetso e tsitsitseng IEC60794-1-21-E1 | -Moroalo oa nakoana:20N - Nako: metsotso e 5 | Phetoho ea tahlehelo £ 0.10 dB@1550 nm(kamora tlhahlobo)- Fiber strain £ 0.60%- Ha ho tšenyo ea sheath |
| 2 | Teko ea silakanya IEC60794-1-21-E3 | - Mojaro: 100 N / 100mm- Nako: metsotso e 5- Bolelele: 100 mm | Phetoho ea tahlehelo £ 0.10 dB@1550 nm(nakong ea teko)- Ha ho tšenyo ea sheath |
| 3 | Ho kobeha khafetsa IEC60794-1-21-E6 | - Radius e kobehang.: 20 × D- Mojaro: 25N- Sekhahla sa ho fetoha: 2sec/cycle- Nomoro ea potoloho: 25 | - Ha ho na fiber e robehileng- Ha ho tšenyo ea sheath |
| 4 | Ho kenella ka metsi IEC60794-1-22-F5 | - Bophahamo ba metsi: 1m- Bolelele ba mohlala: 3 m- Nako: 24 hr | - Ha ho rothele ka har'a kopano ea mantlha ea cable |
| 5 | Sotha IEC60794-1-21-E7 | - Bolelele: 1 m- Mojaro: 40N- Sekhahla sa ho sotha: ≤60sec/cycle- Ho sotha angle: ± 180 °- Nomoro ea potoloho: 5 | Phetoho ea tahlehelo £ 0.10 dB@1550 nm(nakong ea teko)- Ha ho tšenyo ea sheath |
| 6 | Mocheso Ho palama baesekele IEC60794-1-22-F1 | - Mohato oa mocheso:+20oC→-20oC→+70oC→+20oC- Palo ea potoloho: 2 reteleha- Nako ka mohato o mong le o mong: lihora tse 12 | - Phetoho ea tahlehelo £ 0.15dB/km@1550 nm(nakong ea teko)- Phetoho ea tahlehelo £ 0.05dB/km@1550 nm(kamora tlhahlobo)- Ha ho tšenyo ea sheath |
4. Letšoao la sheath
5,Sephutheloana Le Moropa
Lithapo li kentsoe ka har'a mabokose, a khotliloeng holim'a moqomo oa lehong oa Bakelite & Fumigated. Nakong ea lipalangoang, lisebelisoa tse nepahetseng li lokela ho sebelisoa ho qoba ho senya sephutheloana le ho sebetsana habonolo. Lithapo li lokela ho sireletsoa mongobo; ho behoa hole le mocheso o phahameng le litlhase tsa mollo; sireletsoa ho feta ho kobeha le ho pshatla; sireletsoa khatellong ea mochini le tšenyo.
Bolelele ba ho paka: 2000-5000m / reel.
