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HRRG-4(X) Receiver
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HRRG-4(X) Optical Fiber Receiver series adopt PHILIPS optical receiving
modules, transmission power magnifying modules. The return data transmitter
module adopts excellent FP laser module. All the other parts adopt
highly integrated attenuator, equalizer and double filter. Customers
can independently adjust output voltage and slope. The system has
advantages of high sensitivity, low noise figure and stable operating
status. |
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| Applications:
City HFC network, Residential area with a mass of users |
Features:
Four output ports, high output voltage, capable for volume of
erminals;
Broad Bandwidth, easy division of transmission channel and return
channel;
Excellent index of CNR、CSO and CTB;
Easy to adjust by adopting plug-mode attenuator, equalizer and
duplexer.
Modularized return transmitter (options);
Easy to install, two types available: standard outdoor hermetic
cabinet and standard 19"cabinet. |
| Specifications: |
| Transmission channel |
| Channel type |
60 PAL-D +200 digital
channel |
| Optical wavelength |
1280~1600nm |
| Input optical power |
-3~+2dBm |
| Optical echo loss |
≥45dB |
| Frequency range（MHz） |
45 ~ 750/860 MHz |
| Flatness in operating
band（p-p） |
≤±0.75dB |
| RF echo loss (min) |
≥14dB |
| RF output voltage（＠0dBm receive） |
≥102dB μV |
| C/N (＠-2dBm receive) |
≥51dB |
| C/CSO |
≥60dB（RF output voltage 96dBμV） |
| C/CTB |
≥65dB（RF output voltage 96dBμV） |
| Isolation |
≥30dB |
Video in/output impedance
|
75Ω |
| Return channel |
Channel type
|
One PAL-D |
Optical wavelength
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1310±20nm |
Output optical power
|
1-2dBm |
RF echo loss
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≥14dB |
Frequency range（MHz）
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5~ 42 MHz（low division）① |
Flatness in operating band（p-p）
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≤±1dB |
RF input voltage
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RF port |
≥75~80dB μV |
| Local port |
≥95~102dB μV |
C/N(＠-2dBm receive)
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≥51dB |
Video in/output impedance
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75Ω |
| Other parameters |
| AC power supply
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60±15%VAC 50HZ |
| 220±15%VAC 50HZ |
Operating temperature
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-40 ~ +60°C(Outdoor hermetic cabine) |
| Optical connector |
FC/APC |
| Dimensions |
312mmL×206mmW×128mmH |
| Weight |
3.3Kg |
Note: ① According to customers needs, the bandwidth
of transmission channel and return channel can be divided optionally
as low division, mid division and high division.
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