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University Notes
  • Introduction
  • High Level Math
    • Function, limitation, and continuity
      • What is function?
      • Two kinds of infinity
      • The limitation of a function
      • A model for getting limitation
    • Derivative and differential
      • Formulas of derivative
      • Use derivative formula
      • Goes deeper
      • Use derivative
        • Function analyzing in theory
          • First derivative
          • Second derivative
          • Domain and Extreme Value
          • Overall change
        • Derivative use in reality
    • Integration
      • Indefinite integral
        • Basic formulas
        • Use formula
        • Goes deeper
        • Integration by parts
      • Definite integral
        • Properties of definite integral
        • Second fundamental theorem of calculus
        • Multi-method for solving definite integral
    • Multivariable calculus
      • Limitation
      • Partial derivatives
      • Differential
      • Multiple integral
    • Series
    • Linear algebra
    • GaoKao
      • 1
      • The road for starting
      • Polar Coordinates
      • Tangent Line
  • Electrical Engineering
    • The Terminologys
    • DC
      • The circuit rule
      • KCL and KVL
      • Superposition
    • AC
      • Intuition
      • Resistor
      • Inductor
      • Capacitor
      • AC circuit
      • 三相电
        • 星形联结
        • 三角形联结
        • 实际电路
    • Voltage and Current Rule in Circuit
    • Response
      • Foundations
      • 零输入响应
      • 零状态响应
      • 一阶电路的全响应
  • Analog Electronics
    • Technical terms 1
    • DC stable source circuit 的分析与应用
      • 二极管的特性与应用
        • 半导体
        • PN junction
        • Diode
        • 测试二极管
      • 整流滤波电路的分析与应用
        • Rectifier circuit
      • 直流稳压电路的分析
        • Zener diode
        • Shunt voltage regulators
    • Thyristor
    • Technical terms 2
    • Amplifying circuit
      • Bipolar Junction Transistor
      • Common Emitter Configuration
      • Biasing
      • Analysis
      • Mess
      • Negative-feedback amplifier
      • Integrated Operational Amplifier
    • Algorithms
      • What's the ouput of a voltage rectifier circuit
      • PNP or NPN
      • Judging the state of a BJT
      • What's common in BJT
      • Does a amplifying circuit normal
      • What's the feedback type
      • What kind of distortion you are encounter
  • Digital Electronic Technology
    • Logic Gate
    • Logic expressions
    • Karnaugh map
    • Number system
    • Multiplexer
    • Flip-flop
  • Principles of Communications
    • Overviews
    • PCM
    • HDB3
    • Modulations
    • Cyclic code
  • Data Communications and Networking
    • Something about IPv4
  • Micro Control System 51 Series
    • The Delay function
    • The Interrupt function
  • Maintenance of Railway Optical Cable Lines
    • Questions
    • Pictures
  • Mobile Communications
    • Concepts
    • Coding and Modulation
    • Key Technologies
    • Mobile communication network structure
    • Radio wave Propagation and Interference
    • GSM
    • CDMA
    • GPRS
    • 3G
    • 4G
    • Base Station Maintenance
  • Multimedia Communication
    • Concept of Multimedia
    • Compression
    • Lossless Compression
    • Audio
    • Lossy Audio Coding
    • Graph Compression
    • All for the exam
  • Power system for Communication Devices
    • Overview
    • AC power Distribution Panel
    • UPS
    • HF Switched-mode Power Supply
    • Battery
    • Earthing or Use Lightning Arrester
    • Power Supply Monitoring System
    • All for the exam
  • Optical fiber Communication system
    • What is Optical fiber Communication system
      • Prepare
      • Something About Optical fiber
      • Passive Optical Devices
      • Active Optical Devices
      • Optical transmitter Test
      • Optical receiver Test
      • Compose an Optical Communication System
    • SDH (Synchronous Digital Hierarchy)
      • Frame Structure of SDH
      • SDH Equipments
      • Clock System
      • ZXONM E300 Practice
      • SDH protection
    • WDM (Wavelength-Division Multiplexing)
    • OTN (Optical Transport Network)
      • OverHead of OTN
      • OTN Alarms & Errors
      • Do it again, what's happened?
  • Communication Tech English
    • Fundamentals of Electricity
    • Digital Communications
    • Optical Communications
  • High-speed railway Communication Technology
    • Overview
    • Base Knowledge
    • FH98
    • MDS3400
    • Everything is for the exam
  • GSM for Railway
    • Overview
    • Wired Parts
    • Digital dispatch Communication System
    • Basic Knowledge of GSM-R
    • Key technologies for GSM-R
    • Structure of GSM-R
    • GSM-R Network Mode
    • Wireless Channels for GSM-R
    • Mobility Management
    • Connection Management
    • Security Management
    • GPRS
    • GSM-R/GPRS Wireless Access Platform
    • GSM-R Features
    • GSM-R Numbering Plan
    • ASCI
  • Network Configuration Training
    • Words I have learned
  • Broadband Access Technology
    • Using Copper Line
    • Using Optical Fiber
    • Wireless
    • All for the test
  • CIR
    • Basci Knowledge
    • Testing Equipment
    • The Structure of CIR
    • All for the exam
  • LTE
  • Script for ChaoXing
  • Transmission and access network
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  • 组成
  • 特征
  • 容量与接口
  • 电路组网方式
  • IP组网方式
  • 主要功能
  • 主要业务
  • 主要特点

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  1. High-speed railway Communication Technology

MDS3400

MDS3400 is a new generation unified dispatch commanding and communication system platform from Jiaxun Company, it integrates both the voice and data application services, its open design concept and special workmanship can meet with the requirements of commanding dispatch for various industrial enterprises. This system has the powerful dispatching and commanding functions, it can be connected with various intelligent dispatching consoles, and commanding consoles with 2B+D connection, support all functions for dispatching and commanding purposes, such as dispatching functions of selective call, group call, collective broadcast, break-in/out, force, and grouping etc, support the multi-subscriber and multi-level configuration; supports IP distribution network arrangement, its open, compatible and high reliable design can meet with the networking requirements for different industries, its flexible integrated access ability, individualized customization of services, and advanced maintenance means can provide a new source of profit and new competitive advantage. At present, this system has been successfully applied on petroleum, petrochemical, iron & steel, coal, army, and public security, railway, subway etc and Ministry of Public Security ”National Counterterrorism Center”.

MDS3400是佳讯公司新一代统一调度指挥通信系统平台，集语音和数据应用服务于一体，其开放式设计理念和特殊工艺可满足各类工业企业的指挥调度要求。该系统具有强大的调度和指挥功能，可与各种智能调度控制台连接，指挥控制台采用2B + D连接，支持调度和指挥等所有功能，如选呼，群呼，集体调度功能。广播，闯入/熄灭，强制和分组等，支持多用户和多级配置;支持IP分布式网络布局，其开放性，兼容性和高可靠性设计可满足不同行业的组网需求，其灵活的集成接入能力，个性化的服务定制，先进的维护手段可以提供新的利润来源和新的竞争优势。目前，该系统已成功应用于石油，石化，钢铁，煤炭，军队，公安，铁路，地铁等公安部“国家反恐中心”。

看起来是个很吊的系统，应该是受国家支持的东西。(大概整个国家的民用网络给shutdown之后，这个系统也不会受影响)

组成

多媒体交换平台、触摸屏终端、按键终端、统一网管系统

特征

  • 触屏、支持FAS接入

  • 多媒体交换平台，支持软交换

  • 支持 IP组网， 可用做监控、会议系统

  • 所有业务板可任意槽位混插

容量与接口

容量: 4096x4096

接口:

  • STM-1

  • SDH 光接口

  • 34 Mbit/s PDH 光接口

  • E1 接口

  • 10/100M 的以太网接口

  • IS-DN BRI (2B+D) 接口

  • FXS 接口 (模拟用户接口)

  • FXO 接口 (环路中继接口)

  • E/M 中继接口

  • 磁石接口

  • 2线、4线音频接口

  • 选号接口

  • 区间接口

电路组网方式

  • 环形

  • 星形

  • 双中心

  • 树形

IP组网方式

  • 纯IP

  • IP系统 + 电路系统

主要功能

  • 时分交换、以太网交换

  • 数字环自愈及模拟通道备份

  • 断电直通

  • 远程调度台

  • 系统级联

  • 兼容旧设备

  • 紧急电话

  • 集中管理、远程维护

  • 熱備份功能

  • 回波抑制與自動增益控制

  • 录音功能

  • 会议功能

  • 各种防护功能(防雷、防电)

  • 无人站

  • 时钟同步

主要业务

  • 调度

  • 多媒体: 文本、监控、会议

主要特点

  1. 可靠开放的交换平台

  2. 能平滑升级和扩展

  3. 多媒体终端融合

  4. 系统安全

  5. 可扩展、好维护

感想: 觉得我在浪费生命

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Last updated 5 years ago

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