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Help CenterTFT 1550 Direct Modulation Optical Transmitter
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Specifications
1550nm optical transmitter1.Direct modulation
2.Original world famous brand DFB laser
3.APC, ATC
4.HTMS reservation
Summarize
TFT1550 direct modulation 1550nm optical transmitter is small size and compact, it combines with TNE1000 platform to consist excellent performance indoor transmission equipment.
TFT1550 direct modulation 1550nm optical transmitter adopts high linearity, low noise DFB with optical isolator imported laser as optical source, using the company’s newly developed full-band predistortion circuit, significantly improved the laser’s non-linear index. TFT1550 optical transmitter has built-in microprocessor to monitor all the laser operating status parameters, and transmit to TNE1000 system controller through trunk. System controller’s intelligent function provides TFT1550 module good internal working environment, the VFD display on the platform can monitor its operating status. In this environment, TFT1550 module can play excellent performance, and has a very high reliability and stability.
TFT1550 direct modulation optical transmitter operating range is within 10km,the largest not more than 20km,the main application is cooperating with EDFA, it also supports the sub head-end edge IP QAM and local program insertion.
Features:
· Using famous brand and high reliability DFB laser, excellent link performance
· 1550nm Wavelength, standard ITU-T central wavelength
· Excellent APC,ATC function, adapt wide range RF input, guarantee the laser stabile output power.
· Pre-distortion circuit for the all frequency, make the link performance more advantage
· Excellent protection circuit( delay time protection for turning on, work situation indication and alarm report, RF overdrive cut-off function, etc)
· Display the working status by LCD, easy to operate
· Opening network management interface, comply to SCTE HMS standard
Diagram
Specifications
Item |
Unit |
Specification |
Remark |
Operational Bandwidth |
MHz |
47 – 860/1000 |
|
Input Level |
dBuV |
80±5 |
|
RF Input Test Point |
dB |
-20 ±1 |
|
RF Input Impedance |
Ω |
75 |
|
RF Input Return Loss |
dB |
≥16 |
47 – 870 MHz |
Flatness |
dB |
± 0.75 |
|
Output power |
dBm |
+6 ~ + 13 |
|
Optical Wavelength |
nm |
1550 ± 20 |
|
Laser |
|
DFB |
|
Optical Connector Types |
|
SC/APC or FC/APC |
|
Composite Triple Beat Distortion (CTB) |
dB |
≥65 |
|
Composite Second Order Distortion (CSO) |
dB |
≥60 |
|
Carrier-TO-Noise (C/N) |
dB |
≥51 |
|
Weight |
kg |
1 |
|
Operating Temperature |
° C |
-20 ~ +65 |
|
Storage Temperature Range |
° C |
-40 ~ +80 |
|
Humidity |
|
5%—95%(non-condensing) |
|
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