1550nm internally modulated optical transmitter for long distance transmission 30KM adopts advanced electric dispersion compensation technology based on the standard model. The standard model will create serious chirp distortion (the bias current of the laser is modulated by the sigh and optical frequency is shifted and jittered). The distortion becomes more and more serious with the increase of transmission distance, transmission bandwidth and the number of channels. The device adopts the advanced technology of EMD compensation.
According to the actual transmission distance, it can be accurately compensate in 1km step. The max compensation distance can reach 50km. It is mainly used in large area coverage and long-distance point-to-point transmission of secondary optical fiber network. It provides high-quality but low-cost solution to realize triple play and FTTx transmission system.
It adopts advanced electric dispersion compensation technology. According to the actual transmission distance, it can be accurately compensate in 1km step. The max compensation distance can reach 50km.
It adopts original low chirp and high linearity DFB laser as signal source.
The perfect pre-distortion circuit ensures the perfect performance of CTB and
CSO in high standard CNR value.
Automatic gain (AGC) control enables stable output in different RF input level.
Different networks can be optimized by OMI adjustment.
Fully automatic case temperature control, intelligent fans, the fans starts to work when case temperature reaches 30℃.
Built -in dual backup power supply, hot plug and automatic switch supported.
The working parameters of the whole machine are controlled by microprocessor
and the LCD status display on the front panel has many functions such as laser status monitoring, parameter display, fault alarm, network management, etc.; once the working parameters of the laser deviate from the allowed range set by the software, the system will alarm promptly.
Standard RJ45 interface provided, supporting remote network management of
SNMP and WEB.
2.1 Preparation before Installation
2.1.1 Please examine the machine to see if there is distinct.
2.1.2 Please examine if the accessories is complete and the quality cards is here.
If not, please contact sales or dealer.
2.2 Installation
2.2.1 Please keep a space about 4.5cm between machines for ventilation.
2.2.2 Please make sure: the socket works very well and well grounded; The
impedance ≤4Ω; 220V power with three cables, the middle one should connected to the
ground. Incorrect grounding may hurt the device or influence the quality of signal.
2.2.3 Please make sure the key is turned to OFF before the power supply
connected.
2.2.4 Please keep the interface of the fiber clean before connecting the fiber. The
connector could choose FC/APC or SC/APC.
3. 2 Main Technical Parameters
Category | Items | Unit | Index | Remarks | ||||
Min. | Typ. | Max. | ||||||
Optical Index | Operating Wavelength Range | nm | 1528.77 | 1563.86 | Compatible with ITU wavelength | |||
No. of Output Ports | No | 1 | 2 | |||||
Output Power per Port | dBm | 3 | 10 | 1dBm interval | ||||
Laser Linewidth | MHz | 0.65 | 1.0 | |||||
SMSR | dB | 45 | 50 | |||||
XP | dB | 20 | ||||||
RIN | dB/Hz | -160 | RIN(20~1002MHz) | |||||
Optical Return Loss | dB | 50 | ||||||
Fiber Connector | SC/APC | FC/APC、LC/APC | ||||||
RF Index | Operating Bandwidth | MHz | 47 | 1002 | ||||
Input Level | dBμV | 75 | 80 | 85 | AGC | |||
Flatness | dB | -0.75 | +0.75 | 47~1002MHz | ||||
Return Loss | dB | 16 | 47~1002MHz | |||||
Input Impedance | Ω | 75 | ||||||
RF connector | F Metric/Imperial | Specified by user | ||||||
Link Index | Dispersion Compensation Distance | Km | 50 | |||||
CNR1 | dB | 48.0 | 25Km, 30Km 0dBm 59CH Analog+40CH digital | |||||
CTB1 | dB | 63.0 | ||||||
CSO1 | dB | 60.0 | ||||||
CNR2 | dB | 46.0 | 50Km, Rx 0dBm 59CH Analog+40CH digital | |||||
CTB2 | dB | 63.0 | ||||||
CSO2 | dB | 55.0 | ||||||
General Index | Network Management Interface | SNMP,WEB supported | ||||||
Power Supply | V | 90 | 265 | AC | ||||
-72 | -36 | DC | ||||||
Power Consumption | W | 30 | Dual Power Supply, 1+1 standby | |||||
Operating Temp | ℃ | -5 | +65 | Auto case temp control | ||||
Storage Temp | ℃ | -40 | +85 | |||||
Operating Relative Humidity | % | 5 | 95 | |||||
Dimension | mm | 370×483×44 | D、W、H | |||||
Weight | Kg | 4.1 |