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●产品简介 INTRODU*ION
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 tran*itting, its function is to convert optical signals into electric signal, tran*it and receive the video, voice, data with optical tran*itter.
●性能特点 FEATUR*
◆ 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*低噪声前置模块和功率*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*性开关电源,严密*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 T*e |
|
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* 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 |
*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 con*g in 15-95% |
重量weight |
Kg |
≤6.5 |
MJ-200A
MJ