SPECIFICATION
Quick Detail:
●Brand Name: Softel
●Model Number: SR812
●Item Name: SR812 Two Way Optical Receiver
●Frequency Range: 45/87~750/862Mhz, 45~1000Mhz
●Receive Optical Power: -5~+2dBm
●Propose Use Range: -3~+1dBm
●Wavelength: 1100 ~ 1600nm
●Connector Type: FC/APC, SC/APC or Customized
●Fiber Type: Single mode
●Optical Return Loss: ≥45dB
●Power Voltage: AC(150~265)V
●Return Path: Optional
●SNMP: Optional
●Optic Node Dimension: 210(L)x105(W)x60(H)
Description:
Based on plenty of experience about CATV HFC network optical fiber transmission equipment, we developed SR812, SR812B, SR814, SR814B series field optical receiver which is two-way optical receiver; They are mainly used in long-distance optical fiber transmission of TV image signal, digital TV signal, telephone voice signal and data (or compressed data) signal. We are innovating the product technology, rebuilding the line structure and Improving the process quality since we developed the first CATV optical receiver successfully in 1995; The current WR series optical receiver are not only of the lead position in domestic level regarding line technique, but also the same as imported product regarding technological quality; We have developed a variety of different models for users to choose models.
●PHILIPS、PHOTON or E-O PIN optical detector with high sensitivity are used as the part of photoelectric conversion; Import PHILIPS or MOTOROLA push-Pull amplifier module etc. with low noise are used as the forestage of RF amplifier; import PHILIPS or MOTOROLA RF multiplier amplifier module etc. are used as output stage. GaAs amplifier module will be used if you need.
●Built-in add-in (reservation) reverse return optical transmitter component are useful for open reverse return channel.
●There are plug-in duplex filter, plug-in fixed equalizer, fixed attenuator, plug-in output splitter, eighth order optical power indication, scientific and rational line detection port in it to make it more convenient to debug.
●There are cast aluminum waterproof housing, switching power supply with high reliability, strict anti-lightning system to ensure it can work steadily in the field.
●Configure Chinese standard network management responder, easy access to the network management system.
Specifications:
Items | Unit | Technique Parameters |
SR812/SR812R |
Forward Path |
Optical Parameter |
Received Optical Power | dBm | -5 ~ +2 |
Recommended Range | dBm | -3 ~ +1 |
Optical Return Loss | dB | > 45 |
Optical Receiving Wavelength | nm | 1100 ~ 1600 |
Optical Fiber Connector Type | | FC/APC、SC/APC(Or specified by the user) |
Optical Fiber Type | | Single-mode |
Link Performance |
C/N | dB | ≥ 51 |
C/CTB | dB | ≥ 65 |
C/CSO | dB | ≥ 60 |
RF Parameter |
Frequency Range | MHz | 45/87 ~ 750/862 |
Flatness in Band | dB | ±0.5（45~550 MHz）；±0.75（550~750/862 MHz） |
Nominal Output Level | dBμV | ≥ 94 |
Max Output Lever | dBμV | ≥ 108 |
Output Return Loss | dB | ≥ 16（45~550 MHz）；≥ 14（550~750/862 MHz） |
Output Impedance | Ω | 75 |
Return Path |
Optical Parameter |
Optical Emission Wavelength | nm | 1310±10 |
Laser Type | | FP or DFB |
Output Optical Power | dBm | 1 ~ 3 |
Optical Connector Type | | FC/APC、SC/APC(Or specified by the user) |
RF Parameter |
Frequency Range | MHz | 5 ~ 30/65 （Or specified by the user） |
Flatness in Band | dB | ±1.5 |
Input Level | dBμV | 85 ~ 95 |
Output Impedance | Ω | 75 |
Input Return Loss | dB | ≥ 16 |
Noise Power Ratio (NPR) Dynamic Range | dB | ≥10（NPR≥30 dB） |
Generic Characteristic |
Supply Voltage | V | A：AC（135～250）V；B：AC（35～90）V |
Operating Temperature | ℃ | -40 ~ 60 |
Storage Temperature | ℃ | -40 ~ 65 |
Relative Humidity | % | Maximum 95%no condensation |
Power Consumption | VA | ≤ 35 | ≤ 26 |
Dimension | mm | 325（L）X 210（W）X 135（H） 300（L）X 195（W）X 130（H） |
