
The VT-15XX series of externally modulated optical transmitter products is a new high performance 1550nm externally modulated CATV optical transmitter. The transmitter is 1U high and can be easily mounted on a 19" rack.


Frequency Range: 45~862MHz.
RF input level: 75dB~85dB.
With AGC/MGC function, on-line RF control.
Pre-distortion circuit makes excellent non-linear index.
ATC/APC circuit ensure stability of every index.
CPU status control, VFD display, user can test every work Parameters at any time.
Use big area fast-heating make out nature cold wind, mprove Reliability.
RF-input point and power supply with lighting proof
Waterproof design, suitable for every bad environment
Use high efficient SMPS, power supply: AC60V/220V/DC48V

Technical Parameters
Electric Parameter:
| Bandwidth | 45~750/862MHz |
| Flatness | ±0.75dB |
| Input Return Loss | >16dB(45~750/862MHz) |
| Input Impedance | 75Ω |
| RF Gain Adjustment Range | 0~10dB(AGC/MGC) |
| RF Input Signal Level Range | 75dBμV~85dBμV |
| RF Connector Model | F-connector(mm/inch) |
| Power Supply | 220V(110 ~265V/50Hz) |
Optical Parameter:
| Laser Type | DFB |
| Optical wavelength | 1550±20nm |
| Optical Power(Optical Path Loss) | 4、6、8、~24mW |
| Optical Fibre Type | SM(9/125μm) |
| Optical Connector | FC/APC,SC/APC |
Path Parameter:
| CNR | ≥51dB |
| C/CSO | ≤-60dB |
| C/CTB | ≤-65dB |
Environment Parameter:
| Storage Temperature | -10℃~+55℃ |
| Humidity | ≤80% |
| Op.T.,Humidity | 5℃~40℃,5%~70% -10℃~+55℃≤80% Non-acidity |
| Dimension | L350mm×B195mm×H160mm |
| Weight | 4.5kgs(Max.) |