Hardware standard

1.RS232

1. Concept ：

RS232, That is, the recommended standard 232(recommend standard 232), This is the American Electronics Industry Association (EIA) Developed an asynchronous serial physical interface standard . The whole is called “EIA-RS-232C”.

2. characteristic ：

3. attachment ：

 

4. effect

 

2. so RJ45

1. Concept

RJ45 yes IEC(60)603-7 standardized 8 Pin socket or 8 Hole socket , It is used for LAN and ADSL User's device connection , There are two kinds of line sequences （ Through line 、 Cross line ）

2. type ：

3.RJ45 Line sequence of network cable plug ：

4. Use scenarios RJ45 yes IEC(60)603-7 standardized 8 Pin socket or 8 Hole socket , It is used for LAN and ADSL User's device connection , There are two kinds of line sequences （ Through line 、 Cross line ）

 

3.usb

1. Concept ：

RJ45 yes IEC(60)603-7 standardized 8 Pin socket or 8 Hole socket , It is used for LAN and ADSL User's device connection , There are two kinds of line sequences （ Through line 、 Cross line ）

2. advantage

3. Protocol version

 

4. application ：

4.cvbs

Concept ：

2. characteristic

 

3. expand

5.s terminal

S terminal , namely S-Video, Its full name is Separate Video, Or called “ Independent video terminal ” Divide the video data into two separate signals （ Brightness and chroma ） Interface of analog video signal . S terminal （ Common type ） In fact, it is a five core interface , By two video brightness signals 、 Two video chrominance signals and one common shielding ground wire are composed of five cores . it Transmit brightness and chroma separately , Avoid mutual interference , Its maximum resolution is 1024 x 768.