TC514V2  |  调制解调器  |  TC820-1 |  TC520 3BSE001449R1 |  TC512V1 3BSE018059R1 

型号：TC514V2

类别：调制解调器

快递：顺丰

货期：3-5天/周

质保：365天

TC514V2 调制解调器（Modem）是一种计算机硬件，其主要功能是将计算机的数字信号转换成可沿普通电话线或电缆传输的模拟信号，并在接收端将这些模拟信号再转换回数字信号。以下是关于调制解调器的详细解释：

一、基本定义与功能

TC514V2 调制解调器是Modulator（调制器）与Demodulator（解调器）的简称，根据Modem的谐音，亲昵地称之为“猫”。

它是一种能够实现通信所需的调制和解调功能的电子设备，由调制器和解调器组成。

在发送端，调制解调器将计算机串行口产生的数字信号调制成可以通过电话线或电缆传输的模拟信号。

在接收端，调制解调器将输入的模拟信号转换成相应的数字信号，送入计算机接口。

二、工作原理

调制：TC514V2 将数字信号转换成模拟信号的过程，以便在电话线或电缆上传输。

解调：将模拟信号转换回数字信号的过程，以便计算机能够理解和处理。

三、组成部分

调制解调器由发送、接收、控制、接口、操纵面板及电源等部分组成。

四、应用领域

个人计算机中，TC514V2 调制解调器常被用来与别的计算机交换数据和程序，以及访问联机信息服务程序等。

广泛应用于现代通信技术中，包括网络连接、数据传输和远程监控等领域。

五、历史发展

最初是为1950年代的半自动地面防空警备系统（SAGE）研制，用于连接不同基地的终端、雷达站和指令控制中心。

1958年，AT&T发布了第一个商业化modem，Bell 103，已经能够实现300 bit/s的传输速度。

随后，技术不断进步，调制解调器的传输速度和数据处理能力得到显著提升。

TC514V2 | modem | TC820-1 | TC520 3BSE001449R1 | TC512V1 3BSE018059R1

Model: TC514V2

Category: Modem

Express: SF Express

Delivery time: 3-5 days/week

Warranty: 365 days

The TC514V2 Modem (Modem) is a computer hardware, its main function is to convert the computer's digital signals into analog signals that can be transmitted along ordinary telephone lines or cables, and at the receiving end to convert these analog signals back to digital signals. Here is a detailed explanation of modems:

1. Basic definition and functions

TC514V2 Modem is short for Modulator (modulator) and Demodulator (demodulator), and it is affectionately called "cat" according to the homophony of modem.

It is an electronic device capable of achieving the modulation and demodulation functions required for communication, consisting of a modulator and a demodulator.

At the sending end, the modem modulates the digital signal generated by the computer's serial port into an analog signal that can be transmitted over a telephone line or cable.

At the receiving end, the modem converts the input analog signal into the corresponding digital signal and sends it to the computer interface.

Second, the working principle

Modulation: The process by which the TC514V2 converts a digital signal into an analog signal for transmission over a telephone line or cable.

Demodulation: The process of converting an analog signal back to a digital signal so that a computer can understand and process it.

Three, components

The modem consists of sending, receiving, control, interface, control panel and power supply.

4. Application field

In personal computers, the TC514V2 modem is often used to exchange data and programs with other computers, as well as to access online information service programs.

It is widely used in modern communication technology, including network connection, data transmission and remote monitoring.

V. Historical development

It was originally developed for the semi-automatic Ground Air Defense System (SAGE) of the 1950s to connect terminals, radar stations, and command and control centers at different bases.

In 1958, AT&T released the first commercial modem, the Bell 103, capable of 300 bit/s transmission speeds.

Subsequently, technology continued to advance, and the transmission speed and data processing power of modems were significantly improved.