With the development of data communication and telecommunications technology, a metropolitan area network is a full-service network that integrates voice, data, and images. Since the transmission distance of the metropolitan area network is usually no more than 100km, the system does not require high transmission attenuation of single-mode fiber, and does not require the use of fiber amplifiers. In order to use the bandwidth window of 1270~1610nm and set the interval between adjacent wavelengths to 20nm, a multiplexing system of 18 wavelengths can be formed, which is a coarse wavelength division multiplexing system. Therefore, the coarse wavelength division multiplexer CWDM (CWDM: Coarse Wavelength Division Multiplexing) is one of the most important components in the coarse wavelength division multiplexing system. CWDM has the characteristics of low cost, low power consumption, small size, flexible networking mode, etc., which makes the current CWDM system widely used. All CWDM devices provided by Kehai have undergone 24-hour high and low temperature cycling and drop tests, and the product quality is reliable and stable.
Color:
Kev piav qhia
1. Nta
- Tsawg Tsis Poob Ntxig
- Siab Cais
- Tsawg PDL
- Kev Tsim Txom
- Kev Siv Dav Dav Wavelength: 1260nm ~ 1620nm
- Kev Ua Haujlwm Kub Dav: -4 5℃ ~ 85 ℃
- Muaj Kev Ntseeg Siab thiab Kev Ruaj Ntseg
2. Cov ntawv thov
C WDM Txheej Txheem
PON Kev Ua Haujlwm
CATV Txuas Rau
3. Kev Ua Raws Cai
Telcordia GR-1209- NTXHUAB -2001
Telcordia GR-1221- NTXHUAB -1999
ITU-T G.694.1
RoHS
4. Cov Lus Qhia Tshwj Xeeb
Cov tsis | ||
Qhov Nruab Nrab Wavelength (nm) | ITU , ITU + 1 | |
Passband (nm) | ITU ± 6.5 | |
Kev Siv Nyiaj Wavelength (nm) | 1260-1620 | |
Channel Chaw (nm) | 20 | |
Hom Fiber | SMF-28e lossis tus neeg siv khoom teev | |
IL (dB) | Kis band | ≤ 0. 6 |
Thiaj yuav band | ≤ 0. 4 | |
Kev rho tawm (dB) | Kis band | ≥ 30 |
Thiaj yuav band | ≥ 12 | |
Ripple (dB) | ≤ 0.3 | |
Kev saib tsis taus cov neeg ploj (dB) | ≤ 0.1 | |
Hom kev rho tawm hom (ps) | ≤ 0.1 | |
RL (dB) | ≥ 45 | |
Kev Muaj Peev Xwm (dB) | ≥ 50 | |
Qhov ntau tshaj plaws kho qhov muag (mw) | 500 | |
Kev Ua Haujlwm Kub ( ℃ ) | -5~ ~75lossis -45~ ~85 | |
Cia Kub ( ℃ ) | -40 ~ ~85 | |
Pob Qhov Loj (hli) ( Φ *L ) | 5.5 * 34 ( 250um ) | |
Pob Qhov Loj (hli) ( Φ *L ) | 5.5 * 3 8( 0.9 hli) |
Cov Lus Cim:
1. Qhia tshwj xeeb uas tsis txuas.
2. Ntxiv ib qho ntxiv 0.2dB poob rau ib qhov txuas.
5.Neeg kho tshuab qhov ntev
6. Kev Xaj Ntaub Ntawv
QWD | - | XX | X | XX | X | XX | - | X | X | X |
Hloov Chaw Nres Nkoj | WDM Hom | Qhov chaw Wavelength | Hom Fiber | Tso zis Fiber Ntau Ntev | COM Chaw nres nkoj | Kev Txuas Chaw Nkag Hla | Thiaj Li Chaw Txuas Chaw Txuas Khoom | |||
QQ ualfiber | 01 = 1 * 1 | C = CWDM 1460-1620 | 47 = 1470/1471 | B = 250um liab qab fiber ntau | 10 = 1.0m | 0 = Tsis muaj | 0 = Tsis muaj | 0 = Tsis muaj | ||
W = WDM | 02 = 1 * 2 | Q = CWDM 1260-1620 | ……. | L = 900um cov leeg xoob | 12 = 1.2m | 1 = FC / UPC | 1 = FC / UPC | 1 = FC / UPC | ||
D = Ntaus Ntawv | 61 = 1610/1611 | T = 900um nruj tsis | 15 = 1.5m | 2 = FC / APC | 2 = FC / APC | 2 = FC / APC | ||||
…… | 3 = SC / UPC | 3 = SC / UPC | 3 = SC / UPC | |||||||
XX = Mekas | 4 = SC / APC | 4 = SC / APC | 4 = SC / APC | |||||||
5 = LC / UPC | 5 = LC / UPC | 5 = LC / UPC | ||||||||
6 = LC / APC | 6 = LC / APC | 6 = LC / APC | ||||||||
X = Mekas | X = Mekas | X = Mekas |
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