Product Description
WT-1550-DM intelligent directly modulated optical transmitter is mainly used in 1550nm optical fiber transmission system. Adopt advanced electronic dispersion compensation technology, accurately compensate according to the actual transmission distance by 1km stepping. The maximum compensated distance up to 50km.
WT-1550-DM intelligent directly modulated optical transmitter is the most important equipment to construct the CATV network. It mainly used for the value-
Added services of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. By built-in WDM, multiplex the inter-cut optical signal and the main optical signal then output. After setting required optical difference, the perfect adjustable optical attenuation function can automatic control the inserted optical signal according to the main optical signal, realize inter-cut system full automatic adjustment. Provide high quality low cost solution for all-optical relay 1550 optical fiber CATV system, and local value-added services inter-cut.
Characteristics:
1. Patent pre-distortion circuit.
2. The optical fiber distance is adjustable according to the actual use condition by 1km stepping
3. WT-1550-DMII: Built-in WDM, multiplex the inserted optical signal and the main optical signal then output.
4. WT-1550-DM III: Built-in WDM and adjustable ATT.| Item | Unit | Technique Parameters |
| Output optical power | mW | 10 |
| Optical wavelength | nm | 1550±10 (have to be ITU wavelength when with inter-cut function) |
| Dispersion compensation distance | Km | ≤50 |
| Laser type |
| DFB laser |
| Optical modulation mode |
| Direct optical intensity modulation |
| Optical connector type |
| FC/APC or SC/APC |
| Frequency range | MHz | 47-862/1003 |
| RF input level | dBuV | 75-85 |
| Flatness in band | dB | ±0.75 |
| RF input impedance | Ω | 75 |
| Input return loss | dB | ≥ 16 |
| C/CSO | dB | ≥ 60 | 25Km optical fiber, 0dB received |
| C/CTB | dB | ≥ 65 |
| C/N | dB | ≥ 51 |
| AGC control range | dB | ±5 |
| MGC control range | dB | 0-20 |
| Supply voltage | V | AC 110V-250V (50Hz) |
| Consumption | W | 30 |
| Operating temperature | º C | 0 -- 45 |
| Storage temperature | º C | -20 -- +65 |
| Relative humidity | % | Max 95% no condensation |
| Dimension | mm | 483(L)×380(W)×44(H) |