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Help CenterTransmitter Optical CATV TFT1550D 1550nm External Modulation Catv Optical Transmitter
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Transmitter Optical CATV TFT1550D 1550nm External Modulation catv Optical Transmitter
Features
1) Both the external modulator and laser are imported from the United States or Japan.
2) Perfect pre-distortion circuit ensures the best CTB and CSO when the CNR is in high standard.
3) Perfect SBS suppress circuit and adjustable SBS in 13,16, 18,suitable for different types of CATV net
4) AGC control.
5) Internal double power which can be changed automatically.
6) Automatically shell temperature control.
7) 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.
8) The transmitter provides RJ45 and RS232 standard interface for the connecting the computer and monitoring.
Diagram
Specifications
Parameter |
Index |
Remarks |
|
Optical Parameters |
Wavelength (nm) |
1550±10 |
|
Output power (dBm) |
2×7 |
Or 1×5,1×6,1×7, 1×9,2×5,2×6,2×9 |
|
Optical return loss (dB) |
≥60 |
|
|
Connector type |
FC/APC |
Or SC/APC |
|
RF parameters |
bandwidth (MHz) |
45~862 |
|
Input level(dBmV) |
23±5 |
AGC |
|
Flatness (dB) |
≤±0.75 |
45~862MHz |
|
Return loss(dB) |
>16 |
45~750MHz |
|
Input inpedance (Ω) |
75 |
|
|
Link Parameters |
channels |
PAL-D/60ch |
|
CNR (dB) |
≥52 |
65Km fiber,Receive0dBm |
|
CTB (dB) |
≤-65 |
|
|
CSO (dB) |
≤-65 |
|
|
SBS (dBm) |
≥16.0 |
13,16,18 |
|
General Parameters |
Net interface |
RJ45,R232 |
|
Power(V) |
90~265 |
Or -48VDC |
|
Power loss(W) |
≤50 |
|
|
Working Temperature |
0~50 |
Automatically shell temp control |
|
Storage Temperature |
-20~85 |
|
|
Working relative Temp |
20%~85% |
|
|
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