产品详细说明:
单向光接收机Unidirectional Optical Receiver:产品性能特点Specifications:
u光电转换采用光电一体化模块,可低噪声、低失真、低光功率接收u射频输出采用NXP或NEC模块放大,保证链路良好的C/N、C/CSO、C/CTB指标u多级光信号指示电路u功能器件均采用插式,设计有导引槽道,能够达到盲插;均衡器针脚采用不对称设计,避免使用错误;插针、插脚均为铜质镀金处理,可保证接触良好,同时方便工程调试u输出端口可选四路输出,二路高电平输出及二路输出u内置二块银油铝面板,能有效防止电磁辐射u特殊设计的多级防雷组合电路,高效防雷击,可靠性极高,可确保在野外恶劣环境中长时间连续稳定工作u新型铸铝外壳,防水防潮防氧化设计,既方便安装又美观又有利于散热u可选配RG-45以太网接口功能,能方便地实现网管监控,支持>uPhotoelectricintegration RF moduleuLow noise, low distortion, low optical poweruUsing high quality NXP or NEC moduleuMultistage optical signal indicationuUsing plug-in devices with guiding groove, could achieve blind mating. Asymmetrical stitch of the equalizer had been designed to avoid incorrect using. Gilded copper stitches and pins are suitable for contacting and debugging.uThe standard single output model could be extended to two tap or split outputs.uUse two aluminum panels inside to preventing electromagnetic radiationuMultistagelightning protection devices ensure long-time stable and continuous working in an adverse environment.uNew attractive aluminum alloy case with waterproof, moistureproof and anti-Oxidation design is favorable to installation and heat elimination.uIntelligent: RG-45 Ethernet interface is optional, for implementing a monitor system under .产品技术参数Technical parameter:项目 Items | 单位Units | 技术参数 Technical Parameter |
光功率范围 Optical Power | dBm | -7~+2 |
光反射损耗 Optical Return Loss | dB | >45 |
光接收波长 Optical Receive Wavelength | nm | 1100~1600 |
光连接器形式 Optical Fiber Connector | FC/APC,SC/APC(或由用户指定)(optional) | |
光纤类型 Operating Fiber Type | 单模 single model | |
载噪比 Carrier To Noise Ratio | dB | ≥51 |
载波三阶互调比 C/CTB | dB | ≥65 |
载波二阶互调比 C/CSO | dB | ≥60 |
频率范围 Frequency Band | MHz | 45/87~750/862 |
带内平坦度 Flatness In Band | dB | ±0.75 |
标称输出电平 Nominal Output Level | dBuV | ≥100 |
最大输出电平 Max Output Level | dBuV | ≥108 |
AGC功能 Automatic Gain Control | 光信号在-7~+2输入时输出电平保持不变(选配功能) Output Levelkeeping unchanged when the input optical signal is from -7 to +2. (Optional) | |
EOC插入功能 Ethernet Over Coax | 内置EOC信号混合器Built-in EOC Signal Commingler | |
增益调节范围 Gain Adjust Range | dB | 1~20dB插片衰减(1dB步进)或连续可调 1~20dB Fixed attenuations (1dB step) or adjustable continuously |
斜率调节范围 Slope Adjust Range | dB | 1~15dB插片衰减(1dB步进)或连续可调 1~15dB Fixed Attenuations (1dB step) or adjustable continuously |
射频输出反射损耗 Output RF Reflection Loss | dB | ≥16(45~550MHz)≥14(550~750/862MHz) |
射频输出阻抗 Output Impedance | Ω | 75 |
工作温度 Working Temperature | ℃ | -40~ +60 |
储存温度 Storage Temperature | ℃ | -55~ +75 |
电源电压 Power Voltage | V | AC135~265 or AC35~90 |
注:在规定的链路损耗条件下,在550MHz频率范围内配置59个PAL-D模拟电视频道信号,在550MHz-750(862)MHz频率范围内传送数字调制信号,数字调制信号的电平(8MHz带宽内)比模拟信号的载波电平低10dB,光接收机输入光率为-1dB时,测量载波组合三阶差拍比(C/CTB)、载波组合二阶差拍比(C/CSO)及载噪比(C/N)。 Annotate: Measures C/CTB, C/CSO and C/N according to the practice. |