The 5G fronthaul semi-active WDM system launched by 3C-LINK OPTO is mainly used to solve the problem of the lack of fiber optic cable resources between DU-AAU in the C-RAN architecture and realize the management and protection of the fronthaul bearer network.
Semi-active WDM: Passive colored optical modules and multiplexer/demultiplexer units are deployed on the AAU side, and active WDM devices are deployed on the BBU side.
| C/M MUX parameter | CWDM | MWDM | |||
| channel number | 6 | 12 | 18 | 6 | 12 |
| central wavelength(nm) | 1271~1371 | 1271~1491、 1271~1371 &1471~1571 |
1271~1611 | 1267.5~1314.5 | 1267.5~1374.5 |
| Paired channel insertion loss (dB) (not including protection）A |
≤3.0 | ≤4.0 | ≤4.4 | ≤3.0 | ≤4.0 |
| Central wavelength deviation(nm) | ±1.5 | ±1.0 | |||
| 1dB channel bandwith(nm) | ≥13 | ≥5 | |||
| Banding flatness(dB) | ≤0.5 | ||||
| Adjacent channel isolation(dB) | ≥30 | ||||
| Non-adjacent channel isolation(dB) | ≥40 | ||||
| Wavelength Heat stability(nm) | ≤0.005 | ||||
| Insertion loss heat stability(dB) | ≤0.007 | ||||
| Polarization-related losses(dB) | ≤0.15 | ||||
| return loss(dB) | ≥40 | ||||
| protection switch time | <50ms | ||||
| working temperature(°C) | 0~+70 | ||||
| storage temperature(°C) | -40 ~+85 | ||||
| WDM module parameter | CWDM | MWDM | |
|---|---|---|---|
| transmission rate | 10G | 25G | 25G |
| working wavelength(nm) | 1271 ~ 1611 | 1271 ~ 1371&1471 ~ 1571 | 1267.5 ~ 1374.5 |
| distance(km) | 10 | 10 | 10 |
| Tx optical power range (dBm) | 1 ~ 7 | 1.5 ~ 7 | 2 ~ 7 |
| Rx optical power range (dBm) | -13.5 ~ 2(PIN) -18.5 ~ -4(APD) |
-13 ~ 2(PIN) -18 ~ -4(APD) |
-13 ~ 2(PIN) -18 ~ -4(APD) |
3CF-SFP+-SRP
3CPG-434S1OM-LX
3CW-QSFP28-23-LR& 3CW-QSFP28-32-LR
3C-56GB-CU1M
3CI-SFP0204G
3C-OTNS8600V OTN System
3C-ONTS8600I-OLS
3C-HDMI-M4K60-T10
3C-ONU-X100W
3C-XM100DG
3C-AD-SCU
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