有线电视光发射机

●产品简介INTRODUCTION1310nm激光发射机主要用于图像信号、语音信号和数据信号的远距离光纤传输，是构建有线电视HFC网络的重要设备。1310nm Laser Transmitter is mainly used for long distance fiber optic transmission of image signal, sound signal and data signal. It is important equipment for setting up CATV HFC network. ●性能特点FEATURES◆ 选用国际著名品牌的高性能DFB激光器。With international well-known high performance DFB laser.◆ 预失真补偿技术。Prediction distortion compensations technology.◆ 自动温度控制（ATC），自动光功率控制（APC）。Automatic temperature control and automatic power control.◆ 工作状态显示可随时监测整机工作参数。Working habitus are displayed,enabla user monitor the working parameters.◆ 具有标准的RS485和RS232网管接口。Equipped with standard RS485 and RS232 network interface.◆ 高可靠性开关电源，防雷特性好。High reliability on/off power，good anti-thunder ability. ●光学参数 ●Optical specifications 工作波长(nm) 1310±20 Wave length (nm) 1310±20 输出光功率(mW) 4～25 Optical output power (mW) 4～25 光纤连接器类型 FC/APC或SC/APC Optical output connector FC/APC or SC/APC●射频参数 ●RFSpecifications 工作带宽(MHz) 45～750/862 Bandwith (MHz) 45～750/862 输入电平(dBuV) 75～85 RF input level (dBuV) 75～85 平坦度(dB) ±0.75 Flatness (dB) ±0.75 反射损耗(dB) ≥16 Return loss (dB) ≥16 输入阻抗(Ω) 75 Input impedance (Ω) 75 射频连接器类型 F型 RF input connector