Description
Descriptions
RF L-Band Optical Transmitter for CATV and Satellite could extender RF signals to a long distance over fiber cable with the bandwidth of 950~2600MHz. It is the device widely used by traditional TV transmission system. We could supply CWDM or DWDM fiber wavelength for each RF channel
Normal RF optical transmitter is 1U rack mount, it adopts low noise, narrow bandwidth and continuous wave DFB lasers with thermoelectric cooler from JDSU, Fujitsu or MITSUBISHI. Adopting original high quality critical components and system optimization control technology and SMNP technology designed by our own, the technical parameter of the whole machine completely meet the standard of other like products imported from Europe and U.S.A, providing remarkable photo, digital and compressed digital signals in long-distance transmission for CATV and satellite communication.
Festures1. High quality: original system optimization control technology and RF pre-distortion technology ensure that the system can acquire the maximum CTB, CSO, and SBS targets in the case of excellent performance CNR .
2. Flexibility: it can independently transmit 1~2 ways of satellite signals.
3. Reliability: The 19 "1U standard rack, built-in high-performance dual switching power supply, it can work in the backup at 85 ∽ 265Vac City Network Voltage, MS-level automatic switching; chassis cooling automatic temperature control.
4. Intuitive: The machine is equipped with microprocessor monitors the working state of the laser, the panel LCD window displays the operating parameters.
5. Network type: Select All-piece status monitoring transponder guarantee to meet the national standard and compabile with the SCTE HMS standard, it enable network management monitoring capabilities.
6. Hot plug-in type：Aluminum structured plug switching power supply allows for heat dissipation and replacement. Dual power supply both hot and cold backup.
Specification
|
No. |
Item |
Units |
Parameter |
Note |
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|
1 |
Laser Type |
|
DFB |
See in specification |
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|
2 |
Wavelength |
nm |
1550±10； |
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3 |
Side Mode Suppression Ratio |
dB |
≥45 |
SMSR |
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|
4 |
Noise Equivalent Intensity |
dB/Hz |
≤-145 |
RIN (20~2700MHz) |
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5 |
Optical Modulation |
|
Direct |
|
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6 |
Optical Output Power |
dBm |
3~10 |
See specification |
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|
7 |
Return Loss |
dB |
≥50 |
|
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|
8 |
Optical Fiber Connector |
|
FC/APC，SC/APC optional |
Note before ordering |
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|
IF |
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|
1 |
Work Bandwidth |
MHz |
900～2700 ＝ |
|
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|
2 |
Input Level |
dBM |
-40～-20 |
Total input power |
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|
3 |
Flatness |
dB |
±1.0 |
|
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|
4 |
IMD |
dB |
－40dBc |
Total input power≤－20 dBM |
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|
5 |
Input Impedance |
Ω |
75 |
|
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|
6 |
Input Return Loss |
dB |
＞12 |
|
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|
General Parameter |
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|
15 |
Power Supply(dual power supply, hot plug in) |
V |
90~265 |
48VDC optional |
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16 |
Power Consume |
W |
≤50 |
Work in Single power |
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|
17 |
Work Temp. |
℃ |
0～50 |
Automatic Shell Temp. Control |
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|
18 |
Storage Temp. |
℃ |
-20～85 |
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|
19 |
Operating Relative Humidity |
% |
20%～85% |
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|
20 |
Size |
″ |
19″×11″×1.75″ |
（W）x（D）x（H） |
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|
21 |
SNMP Interface
|
|
RJ45 |
Browser and SNMP |
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Transmission Diagram
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