Hiundo‘s’ compact coarse wave divider (CDWDM) has a small package size and lower insertion loss compared to conventional DWDMs, and it also solves the problems of fiber shortage and multi-service transparent transmission, mainly in metro network aggregation and access layers, which can be built and operated in a short time. Because of its low cost, low power consumption, small volume and many other advantages, is a low-cost, high-performance transmission solution, has been widely used in metro transmission.
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| Parameter | Specification |
| 4 | 8 | 12 | 16 | 18 |
| Channel Wavelength（nm） | 1260～1620 |
| Channel Spacing（nm） | 20 |
| Passband（nm） | Channels | ±6.5 |
| Upgrade port | 1310±50 | 1260~1458 |
| Insertion loss（dB） | Channels | 1.0 | 1.5 | 1.5 | 2.0 | 3.0 |
| Upgrade port | 1.5 | 1.5 |
| Isolation（dB) | Adjacent Isolation | ≥30 |
| Non-Adjacent Isolation | ≥40 |
| Upgrade port | ≥15 |
| Fiber type | SMF-28e，900um losse Tube |
| Polarization-related losses（dB） | ≤0.2 |
| Polarization Mode Dispersion（PS） | ≤0.1 |
| Directivity（dB） | ≥50 |
| Return Loss(dB) | ≥45 |
| Max Optical Power（mW） | 500 |
| Operating Temperature（℃） | -10～75 |
| Storage Temperature（℃） | -40～85 |
| Dimensinons（mm） | 8+1CH：L44×W28×H6.2 或 L44×W25×H6.2 或 L54×W32×H7.4 |
| 18CH：L50×W50×H6 |
Typical WDM-PON system
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