1.1550nm External Modulation Laser Transmitter 2.With SNMP function 3.SBS adjustable 4.With CE and RoHS certificate 5.OEM
External Modulation Laser Transmitter EMTX1500
Description :
EMTX1500 series external modulated optical transmitter accords with current international industry technique. The wholeunit light source adopts narrow bandwidth, low noise, continuous wave DFB laser, which is propitious to reduce the influence of dispersion. The whole unit signal modulation adopts CATV special LiNbO3 external modulator of American company.
Features
1. The frequency of 1550nm broadband external modulation optical transmitter is 47 ~ 270MHz, 47 ~ 862M for cable TV, 950 ~ 2700MHz for micro-wave signal such as radio frequency, satellite and MMDS.
2. Mixed input and separate input for the user’s choice. Mix model means the cable TV and radio frequency share one input, separate means the two input separately.
3. Both the external modulator and laser are imported from the United States or Japan.
4. Perfect pre-distortion circuit ensures the best CTB and CSO when the CNR is in high standard.
5. Perfect SBS suppress circuit and adjustable SBS in 13, 16, 18, suitable for different types of CATV net.
5. Internal double power which can be switched automatically.
6. Internal microprocessor software has the function of laser monitoring, parameter display, fault warning, net management and so on. Once the working parameter of the laser goes out of the fixed value of the software, the machine will warn.
7. The transmitter provides RS232 standard interface for local management.
8. The transmitter provides RJ45 standard interface for remote management.
Parameters
Items | Parameters | Remarks | |
Optical Parameters | Wavelength(nm) | 1550±10 | |
Laser Type | DFB | ||
Modulation | External Modulation | ||
Output(dBm) | 2×7 | Or 1*5/1*6/1*7/1*8/1*9/2*5/2*6/2*7/2*8/2*9/2*10 | |
Modulation Depth | 3%±0.25 | ||
Optical Return Loss(dB) | ≥60 | ||
Fiber Connector | FC/APC | Or SC/APC | |
RF Parameters | Bandwidth(MHz) | 45-862 | |
Input Level(dBµV) | 80±5 | AGC | |
Flatness(dB) | ≤±0.75 | 45 ~ 862MHz | |
Return Loss (dB) | ≥16 | 45 ~ 862MHz | |
Input Impedance (Ω) | 75 | ||
Link Parameters | Channels | PAL-D/98ch | |
CNR(dB) | ≥52 | ||
CTB(dB) | ≥65 | ||
CSO(dB) | ≥65 | ||
SBS(dBm) | ≥16.0 | 13 / 16 / 18 Can chosen | |
General Parameters | Net Interface | RJ45 / RS232 | |
Power Supply(V) | 90 ~ 265VAC | Or -48VDC | |
Power Consumption(W) | ≤50 | ||
Working Temp(°C) | -20 ~ 85 | Automatically shell temp control. | |
Relative Humidity | 20% ~ 85% | ||
Size(″) | 19″* 11″* 1.75″ | 483(W)*381(L)*44(H) | |
Weight(Kg) | 5.0 | ||
Certificates :
External Modulation Laser Transmitter EMTX1500
