CATV Outdoor Two Way Optical Receiver Manual Wr1004dml

1. Product SummaryWR1004DM-B is our new high-class 4-way output CATV network optical receiver. The pre-amplifier adopts all-GaAs MMIC, post-amplifier adopts GaAs module. Optimized circuit design, coordinate with our 10 years design experience, the device achieve high performance index. The adjustment of RF attenuation and equalization both adopts adjustable attenuator inserter that makes the engineering debug very convenience. It is the main equipment to build CATV network. 2. Performance CharacteristicsOptical AGC control, when input optical power is -7~+2dBm, the output level, CTB, CSO basically unchanged.10 bar LED optical power instructions, more accurately display the optical power.Optimized circuit design, the pre-stage adopts SMT processing, while post-stage adopts module amplify typical circuit, which make the RF signal linear more prefect.The adjustment of RF attenuation and equalization both adopts adjustable attenuator, which make the engineering debug more convenient.Power doubler output, high gain and low distortion.The forward path adds a high-pass filter, while the return path adds a high-pass filter and a low-pass filter, which effectively extend the NPR dynamic range of uplink.Return emission can select burst mode to sharply decrease the noise convergence and reduce the forepart receiver number.3. Technique Parameter3.1 Link testing conditionsThe performance parameters of this manual according to the measuring method of GY/T 194-2003 , and tested in the following conditions. Testing conditions: Forward optical receive part: with 10km standard optical fiber, passive optical attenuator and standard optical transmitter composed the testing link. Set 59 PAL-D analog TV channel signal at range of 45/87MHz~550MHz under the specified link loss. Transmit digital modulation signal at range of 550MHz~862/1003MHz, the digital modulation signal level (in 8 MHz bandwidth) is 10dB lower than analog signal carrier level. When the input optical power of optical receiver is -1dBm, the RF output level is 108dBμV, with 6dB output tilt, measure the C/CTB, C/CSO and C/N.Return optical transmit part: Link flatness and NPR dynamic range are the link indexes which is composed of backward optical transmitter and backward optical receiver.3.2 Technique ParametersItemUnitTechnical ParametersForward  partOptical  ParametersReceiving Optical PowerdBm-7 ~ +2Optical Return LossdB>45Optical Receiving Wavelengthnm1100 ~ 1600Optical Connector Type FC/APC, SC/APC or specified by the userFiber Type Single ModeLink PerformanceC/NdB≥ 51 (-1dBm input)C/CTBdB≥ 65Output Level 108dBμVEQ 6dBC/CSOdB≥ 60RF ParametersFrequency RangeMHz45 ~862/1003 (or specified by the user)Flatness in BanddB±0.75Fixed slopedB2±0.5Rated Output LeveldBμV≥ 108Max Output LeveldBμV≥ 110Output Return LossdB≥14Output ImpedanceΩ75ATTdB0~15EQdB0~15Return  PartOptical  ParametersOptical Transmit Wavelengthnm1310±10, 1550±10 or specified by the userOutput Optical PowermW0.5, 1, 2Optical Connector Type FC/APC, SC/APC or specified by the userRF  ParametersFrequency RangeMHz5 ~ 65 (or specified by the user)Flatness in BanddB±1Input LeveldBμV72 ~ 85Output ImpedanceΩ75General PerformancePower VoltageVA: AC (150~265)V; B: AC (35~90)VOperating TemperatureºC-40~60Storage TemperatureºC-40~65Relative Humidity%Max 95% non-condensingConsumptionVA≤ 30Dimensionmm240 (L)×240 (W)×150 (H)   Note: The forward RF parameters are tested under the condition of using NEC module in the last stage. Use other module, the parameters will be slightly different.   Burst Mode (Select this mode, see below)Optical Output Power(Close the burst mode)dBm -30Laser Turn On ThresholddBμV≥70Laser Turn Off ThresholddBμV≤62Laser Turn On Time (t1)us0.5≤ t1 ≤1Laser Turn Off Time (t2)us0.5≤ t2 ≤1.5contact usProduction Process  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1