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Home » Product List » Optical Transmitter » 1550nm External Modulation CATV Optical Transmitter
Product Details
1550nm External Modulation CATV Optical Transmitter
| Model NO.: | SN1550B Series |
|---|
1550nm External Modulation CATV Optic Transmitter
SN1550B series external modulation CATV transmitter adopts low noise, narrow bandwidth, and continuous wave laser as its light source.
It uses high linearity LiNbO3 external modulator to modulate signal. It eliminates the Chirp Effect of 1550nm direct modulation laser.
Characteristics:
1. High index:Original system optimized control technology, offers excellent CNR, CTB, CSO & SBS index;
2. Flexibility:Original SBS critical value 13, 16, 18 is adjustable at spot, it can fit for different network;
3. Reliability:Built-in double power supplies, switch automatically. Machine case temperature control automatically;
4. High quality:Intuitionistic Optic Modulation Intensity(OMI)display. Advanced network management function (each machine has independent IP address );
| Optic Feature | Wavelength Range | (nm) | 1555±5 | ITU-TG.692 Standard wavelength |
| Line Width | (MHz) | ≤1 | FWHM | |
| Side Mode Suppression Ratio | (dB) | ≥45 | SMSR | |
| Equivalent Noise Intensity | (dB/Hz) | ≤-160 | RIN (20~1000MHz) | |
| Output Power | (dBm) | 2×7 | Optional 2×5, 2×6, 2×9, 2×10 | |
| Return Loss | (dB) | ≥50 | | |
| Optical Fiber Connector | | SC/APC | Optional FC/APC | |
| RF Feature | Work Bandwidth | (MHz) | 47-862 | |
| Input Level | (dBmV) | 18~28 | AGC | |
| Flatness | (dB) | ≤±0.75 | 45~862MHz | |
| Return Loss | (dB) | >16 | 45~750MHz | |
| Input Impedance | (Ω) | 75 | | |
| RF Connector | | British system F head | | |
| Link Feature | Transmit Channel | | PAL-D/60CH | NTSC/80CH |
| CNR1 | (dB) | ≥53 | Back to back | |
| CNR2 | (dB) | ≥52 | 65Km optical fiber, 0dBm receive | |
| CTB | (dBc) | ≤-65 | | |
| CSO | (dBc) | ≤-65 | | |
| SBS Restrain | (dBm) | 13, 16, 18 | Adjustable | |
| General Feature | Network Interface Port | | RJ45, RS232 | Support I.E. & SNMP |
| Supply Voltage | (V) | 110~220VAC | 48VDC optional | |
| Power Consumption | (W) | ≤50 | Single power works | |
| Operating Temperature | ( ºC ) | -5~+65 | Machine temp. control automatically | |
| Storage Temperature | ( ºC ) | -40~+85 | | |
| Operating Relative Humidity | (%) | 5~95 |
