品牌: | MJ |
型号: | MJ-300A |
波长: | 1330/1550 |
●产品简介INTRODUCTION
CATV光接收机是一种应用于有线电视光纤传输网络的设备,其主要功能是将光信号转换成电信号,配合光发射机完成图像、语音、数据的传送和接收。
CATV optical receiver can be used in CATV HFC network transmitting, its function is to convert optical signals into electric signal, transmit and receive the video, voice, data with optical transmitter.
●性能特点 FEATURES
◆ 适合于1310nm和1550nm双波长工作窗口。Suitable for 1310nm and1550nm wavelength
◆ 采用PHILIPS光接收器件,PHILIPS、NEC进口低噪声前置模块和功率倍增模块放大。Adopt PHILIPS( optional) receive device, imported low noise pre-module and power double magnify module by PHILIPS and NEC
◆ 二路/四路高电平射频输出。Two or four radio frequency of high level output channel
◆ 每路设有衰减器、均衡器。Independent attenuator,balanced device for every channel.
◆ 具有光功率监测LED显示电路,便于使用维护。
◆ 高可靠性开关电源,严密防雷击系统。High reliability on/off power,Anti-thunder system
●技术指标Technical Parameters
项目Items |
单位Unit |
性能参数Data |
输入光功率 Input Optical Power |
dBm |
-7~+2 |
光反射损耗 Optical Return Loss |
dB |
>60 |
波长 Wavelength |
nm |
1100~1600 |
光连接器 Optical Fiber Connector |
|
FC/APC SC/APC |
光纤类型 Operating Fiber Type |
|
One Pattern |
工作频带 Operating Frequency Band |
MHz |
47~860 |
带内平坦度 Flatness In Band |
dB |
±0.75 |
输出电平 Output Level |
dBμV |
108 |
载噪比 C/N Carrier To Noise Ratio |
dB |
≥51 |
载波三次差拍比(84个PAL-D) Composite Triple Beat (84PAL-D) |
dB |
66 |
载波二次差拍比(84个PAL-D) Composite Second Order (84PAL-D) |
dB |
61 |
反射损耗 Return Loss |
dB |
≥16 |
输出阻抗 Output Impedance |
Ω |
75 |
输入电压范围 Input voltage range |
V |
AC: 110-260V or 35-70V |
功耗 power consumption |
W |
≤40 |
抗雷击能力 Thunder Stroke Immunity |
KV |
5(10/700μS) |
工作温度working temperature |
℃ |
-20~+50 |
储存温度storage temperature |
℃ |
-40~+70 |
相对湿度relative humidity |
|
No concreting in 15-95% |
重量weight |
Kg |
≤6.5 |
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