optical transmitter adopts low noise,narrow bandwidth,continuous wave laser as its light source,uses LiNbO3 external modulator
optical external transmitter TO-1550E
Summary
TO-8500 1550 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. Due to adopting owned system optimized control technology & using top grade key parts , the machines technique performance index achieves the standard of same advanced products in the world totally.
Characteristic:
1 High indexOriginal system optimized control technology, offers excellent CNR, CTB, CSO & SBS index.
2 FlexibilityOriginal SBS critical value 13, 16, 18 adjustable at spot, it can fit for different network.
3 ReliabilityImbedded double power supplies, switch automatically. Machine case temperature control automatically(ATC)
4 High qualityIntuitionistic Optic Modulation IntensityOMIdisplay.
Parameters
Performance | Index | Supplement | ||
Optic feature | Laser wavelength | (nm) | 1550±10 | Accordable with ITU-TG.692 Standard wavelength |
Linearity width | (MHz) | ≤1 | (λ) | |
Equivalent noise intensity | (dB/Hz) | ≤-160 | RIN (20~1000MHz) | |
Output power | (dBm) | 2×7 | 2×52×91×71×5 | |
Return loss | (dB) | ≥60 |
| |
Optic fiber connector |
| FC/APC | SC/APC or E-2000 | |
RF feature | Work bandwidth | (MHz) | 45-862 |
|
Input level | (dBmV) | 18~28 | AGC | |
Flatness | (dB) | ≤±0.75 | 45~862MHz | |
Return loss | (dB) | >16 | 45~750MHz | |
Input impedance | (Ω) | 75 |
| |
Link feature | Transmit channel |
| PAL-D/60ch |
|
CNR1 | (dB) | ≥53.5 |
| |
CNR2 | (dB) | ≥52 | 65Km optic fiber,0dBm receive | |
CTB | (dB) | ≤-65 |
| |
CSO | (dB) | ≤-65 |
| |
SBS restrain | (dBm) | ≥16.0 | 131618 fixed or adjustable optional | |
General feature | Network interface port |
| RJ45,R232 | Support I.E. & SNMP |
Power supply | (V) | 90~265 city power | -48VDC optional | |
Power Consume | (W) | ≤50 | Single power works | |
Work temp. | () | -5~65 | Machine temp. control automatically | |
Storage temp. | () | -40~85 |
| |
Work relative temp. | (%) | 5~95 |
| |
Size | (") | 19×14.5×1.75 | (W)x(D)x(H) | |
