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Role of the switch serial port (Trunk: The following two encapsulation types can be used for relay over Ethernet through the serial port of the switch: -IEEE 802.1Q -ISL (Inter Switch Link, Cisco private) Procedure Step 1: Add a VLAN to the vswitch Switch1 # vlan database
How do you want to buy a computer or assemble a computer, you first need to know some hardware knowledge, in this article for you to specifically introduce the serial port and the hard disk, and the difference between the two. I hope to help you. In order to facilitate understanding, you can understand the difference between the serial and the hard drives: Coll
I recently summarized three methods of reading and writing through the serial port (COM:The 1st method is to use a serial control launched by Microsoft in. net2.0. the SerialPort class must be. net2.0.The 2nd method is to use APIs to write serial communication. Although it is difficult, you can easily implement the var
The console port is a port for each network management device. By default, authentication is not performed and plug-and-play is enabled. To ensure security, we can authenticate the console port, there are two authentication methods: 1. password 2. user name + Password Take Cisco configuration as an example: 1. Passwo
About javax. Comm About javax. CommJavax. Comm is an extension API provided by Sun for developing independent communication applications on the platform. (PS: Here, javax's X accurately shows that it is an extension package, rather than a core package. But for historical reasons, not all of javax's extension packages are, for example, swing packages are already part of Java's core architecture. However, to be compatible with Java coding, javax is still used. swing .) Javax. Comm can access the R
When we learn the principles of the microcomputer, many people will have a big problem with some interface bus. These are some of the content contained in the serial port protocol. So in order to better understand some interface serial port protocol standards, we will give a detailed introduction to such problems.
In the previous article, you should know which interface your printer uses. After connecting the printer to the computer using the data cable, select the appropriate port in the driver to print it. The following describes the serial port printer driver operation steps. 1. Select the correct port number in the driver. Y
Currently, both the on-board and PND devices have the function of automatically correcting the system time. The implementation method is generally when GPS is used (of course, for devices with CMMB module, you can also use CMMB for calibration ). However, because the serial port device is an exclusive device, the GPS serial p
C # Serial Port Operations -- Using system; Namespace Chuankou{////// Summary of class1.///Class send{////// Application Program .///[Stathread]Static void main (string [] ARGs){//// Todo: add Code To start the application//Chuankou. comatrix ORT ss_port = new Chuankou. comatrix ORT ();Ss_port.portnum = "COM1"; // port numberSs_port.baudrate = 19200; // The
Cisco PT Simulation Experiment (5) port aggregation configuration for switchesExperimental Purpose :Understanding Port Aggregation FundamentalsMaster the configuration method of general switch port aggregationExperimental Background : The company's finance department and the sales department of the PC through 2 switche
The virtual serial port software introduced here is vspm (: http://www.dbank.com/download.action? T = 40 K = mtq1mde2njk = pcode = lcw2ndc2mjksnjq3nji5 RND = 2527).Vspm virtual serial port software can TCP/IP Connect to the VM Com Through accessing the virtual serial
Server, web server, email server, network device, SQL Server, file server, and printer. 3. view all network devices in one graph Prtg network monitor can be used to monitor network devices, classify these devices, and view them in a unified graph. In other words, in a graph, you can immediately view the alarms, CPU loads, and response times displayed on the Windows network. 4. Use email or short message service to send a warning 5. Monitor applications on the network and other servers, such as
]Download 270kb, 1 S (184kb/s)The software package lrzsz that was deselected was selected.(Reading the database... the system currently has a total of 101203 files and directories installed .)ExtractingLrzsz (from.../lrzsz_0.12.21-4.1_i386.deb )...The software package minicom that has been deselected is selected.Extracting minicom (from.../Minicom_2.3 ~ Rc1-2_i386.deb )...Processing the trigger for man-DB...IsSet lrzsz (0.12.21-4.1 )...Setting...Minicom (2.3 ~ Rc1-2 )... PS:UbuntuI have nothing
Original URL: http://blog.csdn.net/liaoxinmeng/article/details/5004743First of all:1. Neither the terminal nor the console is the concept of personal computers, but the concept of a small, medium-sized mainframe computer shared by many people.A host, even a lot of terminals, the terminal for the host to provide a human-computer interface, everyone through the terminal using the host resources. The terminal has two kinds of character dumb terminal and graphic terminal.Console is another human int
Qt serial Port class Qserialport use notes Although the RS232 interface is no longer available on most home PCs today. However, due to the simple operation of RS232 serial port and reliable communication, there are still a lot of applications in the industrial field. Qt Previous version, did not provide official supp
--------------------------------------Editor:yeungchiDate:2016/3/29Describe: small ticket printer garbled problemArticle content:First, the parameter explanationSecond, serial connection printer setup case--------------------------------------Serial port is a very common protocol for device communication;First, the parameter explanationBaud rate This is a paramet
sending and receiving dual-end processors with Low Speed. Therefore, hardware Throttling is required. The other pins are related to the modem. The data set ready of the DSR data device is used to indicate that the modem is in usable state. Data Terminal ready indicates that the data terminal can be used. These two signals are used to check whether the modem is connected. This pin is set by the modem when the Dell pin has a phone dial. The DCD signal is set when the modem receives the digital ca
Two independent asynchronous serial I/O ports are provided for the UART unit of the high-efficiency FIFO serial port based on the implementation of b0x (clock frequency: 60 MHz) on the ARM7, each communication port can work in the interrupt or DMA mode. That is, UART can generate an internal interrupt request or DMA re
Point:1. Serial Port and comport are physical interfaces (hardware ). While TTL, RS-232, RS-485 refers to the level standard (electrical signal ). 2. Generally, only Gnd RX Tx is connected to the device. Do not connect to the VCC or + 3.3v power cord to avoid power supply conflicts with the target device. 3. The pl2303 and cp2102 chips are USB-to-TTL serial ports
The serial port of STM32F407 uses DMA to send and receive data, and stm32f407dma The serial port of STM32F407 uses DMA to send and receive data For more information, see http://blog.csdn.net/jdh99, :jdh. Environment: HOST: WIN8 Development Environment: MDK5.13 Mcu: stm32f407VGT6 Note: Previously, we used STM32F103 t
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