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Optical equipment for cable TV

Top 1550nm External Modulated Optical Laser Transmitter EOT55XXT

Top 1550nm External Modulated Optical Laser Transmitter EOT55XXT
  • Summary
  • Features
  • Advantage
    EOT55XXT is a model of 1550nm externally modulated optical transmitter according with current international industry technique standard. The whole unit light source adopts narrow line width (Typ.=0.65MHz), low noise, and continuous wave DFB laser, which is propitious to reduce the influence of dispersion. Adopting LiNbo3 external modulator that is expecially designed by JSDU and original micro-wave technology, EOT55XXT external modulated optical laser transmitter can reach high index of CNR ≥ 53dB, CTB≤ -65dB, CSO≤ -65dB, SBS 13~19 dBm adjustable. The whole unit is equipped with SNMP network management, 1+1 plug-in back-up power supply and casing temperature auto-control. EOT55XXT can transmit whole band CATV signal. Ensuring excellent signal when at low frequency. It is applicable for main links and distribution network links in large and middle CATV station head-end.

    1. High Performance
    2. CNR ≥ 53dB, CTB≤ -65dB, CSO≤ -65dB
    3. Narrow line width continuous wave DFB laser(Typ=0.65MHz)
    4. SBS 13~19dBm adjustable
    5. AGC/MGC optional
    6. LiNbo3 external modulator
    7. SNMP network management
    8. 1+1 plug-in back-up power supply
    9. CE approved
    Items Parameter Remark
    Optic Parameters Operating wavelength nm 1550nm±10nm  
    Output powr dBm 2x10 2x7, 2x8, 2x9, 2x10, 2x11, 2x12
    Return loss dB ≥52.0  
    Optical fiber connector   SC/APC Optional SC/APC,FC/APC
    RF Parameters Bandwidth MHz 47~862 or 47~1060  
    Input level dBmV 23±5 AGC
    Flatness dB ±0.75 45~(862)1000MHz
    Return loss dB >16 45~750MHz
    Input Impedance Ω 75  
    Link Parameters Channels   PAL-D/60ch  
    CNR dB ≥53 65KM fiber,revieve 0dBm
    CTB dB ≤-65  
    CSO dB ≤-65  
    SBS dB ≥16.0 13~19dB adj
    General Parameters NM interface   RJ45  
    Power V 90~265 Optional-48VDC
    Power consumption W ≤50  
    Working Temp °C 0~50 Automatically casing temp control
    Storage Temp °C -20~85  
    Operating relative humidity % 5-95  
    Size " 19x14.5x1.75 W x D x H