Key Features
✔ High performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz in-band. ✔ Narrow bandwidth (Typ.=1MHz), lower noise, DFB continuous wave laser. ✔ The operating bandwidth is up to 47~1080MHz. ✔ Perfect index: Unique innovation technology, provide excellent CNR, CTB, CSO & SBS. ✔ ITU standard wavelength adjustable, the user can adjust and set the laser wavelength on the front-panel with ±0.05nm stepping in the range of ±200GHz (±1.6nm), used in the network upgrading and expansion of WDM system. ✔ AGC/MGC mode is optional at spot. OMI can be optimized at spot. ✔ Perfect RS232 communication interface. ✔ SNMP network management function optional. ✔ 1+1 backup power supply optional. ✔ Casing temperature auto-control. ✔ Excellent P/P ratTechnical specification
| Performance | Index | Supplement | |||
| Optic feature | Operating wavelength | (nm) | 1540~1563 | WT8500AC | |
| ITU-TG.692 | WT8500AU | ||||
| Wavelength ADJ. range | (nm) | ±1.6 (±200GHz) | WT8500AU | ||
| Wavelength ADJ. mode | ±0.05nm stepping | WT8500AU | |||
| Line width | (MHz) | ≤1.0 | FWHM(Δλ) | ||
| Side mode suppression ratio | (dB) | ≥45 | SMSR | ||
| Equivalent noise intensity | (dB/Hz) | ≤-160 | RIN (20~1000MHz) | ||
| Output power | (dBm) | 2×5 | Optional 2×3, 2×6, 2×7, 2×9 | ||
| Return loss | (dB) | ≥60 | |||
| optical fiber connector | SC/APC | Optional LC/APC,FC/APC | |||
| RF feature | Work bandwidth | (MHz) | 47-862 | 47~1000,47~1080 optional | |
| Input level | (dBmV) | 18~28 | AGC | ||
| Flatness | (dB) | ≤±0.75 | 47~862MHz | ||
| ≤±1.5 | 862~1000MHz (Optional) | ||||
| Return loss | (dB) | >16 | |||
| Input impedance | (Ω) | 75 | |||
| RF port | F-Female | ||||
| Link feature | Transmit channel | PAL-D/60CH | PAL-D/99CH | ||
| CNR1 | (dB) | ≥53.0 | ≥51.5 | Back to back | |
| CNR2 | (dB) | ≥51.5 | ≥50.0 | 65Km optical fiber, 0dBm receive | |
| CTB | (dB) | ≤-65 | ≤-65 | ||
| CSO | (dB) | ≤-65 | ≤-65 | ||
| SBS restrain | (dBm) | 13, 16, 181 | Adjustable | ||
| General feature | SNMP network management interface | RJ45 | |||
| Communication interface | RS232 | ||||
| Power supply | (VAC) | 90~265VAC | 50/60Hz | ||
| (VDC) | -48 | 30~72 | |||
| Power Consume | (W) | ≤50 | Single power works | ||
| Work temp. | (°C) | 0~50 | Machine temp. control automatically | ||
| Storage temp. | (°C) | -40~85 | |||
| Operating relative humidity | (%) | 5~95 | |||
| Size | (") | 19×14.5×1.75 | (W)x(D)x(H) | ||
Application
A.Used in middle and small CATV center head end, solve the transmission of trunk and distributive network with high quality and low cost. B.Used in second-grade service area of sub-station. With excellent P/P ratio, provide second-grade users with high quality and high reliability value added service such as RFTV, IPTV, VOD and so on. It can avoid the limitation on transmission bandwidth and distance as well as system CSO deterioration caused by laser chirp for adopting 1550nm direction modulated optical transmitterProduct series
| Model | Output Power(dBm) | Operating wavelength (nm) | SBS Restrain(dBm) | System index(59 routes PAL-D) | |||
| CNR1 | CNR2 | CTB | CSO | ||||
| 1550-2*3 | Dual fiber 2×3 | 1540~1563 | 13, 16, 18 Adjustable | ≥53 | ≥50.5 | ≤-65 | ≤-65 |
| 1550-2*5 | Dual fiber 2×5 | ≥53 | ≥51 | ≤-65 | ≤-65 | ||
| 1550-2*6 | Dual fiber 2×6 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||
| 1550-2*7 | Dual fiber 2×7 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||
| 1550-2*8.5 | Dual fiber 2×8.5 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||
| 1550-2*3 | Dual fiber 2×3 | 1528~1563nm ITU wavelength ADJ. | ≥53 | ≥50.5 | ≤-65 | ≤-65 | |
| 1550-2*5 | Dual fiber 2×5 | ≥53 | ≥51 | ≤-65 | ≤-65 | ||
| 1550-2*6 | Dual fiber 2×6 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||
| 1550-2*7 | Dual fiber 2×7 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||
| 1550-2*8.5 | Dual fiber 2×8.5 | ≥53 | ≥51.5 | ≤-65 | ≤-65 | ||