供应有线电视光接收机MJ-300A

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品牌:MJ 型号:MJ-300A 波长:1330/1550(nm)

●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

&plu*n;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