aui transceiver

Blog directory:1, the UART and RS232, RS485 relations:2, RS232 and RS485 of the difference and pin introduction3. Reference documentsThe text is as followsI. The relationship between UART and RS232 and RS485:Communication problems, and traffic is the same. Serial communication, we can use bus to analogy.Bus operation can be easily divided into two parts: 1, Station 2, the road where the station determines what (people), how to send (shift) and so on. When the car runs on the road, it is necessar

Switch Fibre ports Because the price of the switch fibre port is still very expensive, the fiber is used primarily for connecting between the core switch and the backbone switch, or for cascading between the backbone switches. It should be noted that the switch fibre ports are not stacked and can only be used for cascading. Cross-connect of fiber jumper All switch fibre ports are 2, each is a single charge. Of course, the fiber jumper must also be 2, otherwise the port will not be able to co

: 2.2. Set the computer to "automatically obtain IP address", "Automatically obtain DNS server address" click "OK": Step 3rd Logon Router 3.1. Make sure that the computer starts the router by using one of the four LAN ports connected to the router as described in the first step. 3.2. Open your computer's Internet Explorer or other browsers such as Netscape Navigator, type http://192.168.1.1/basicsetting.htm in the browser's address bar, and then enter "Note" First set up the rou

segments corresponds to the winding connection, but without welding and sealing of the outer skin, there are many high power home appliances near the contact, which produces electromagnetic interference, affect the communication quality of twisted-pair wires. Solution: The cable will be reserved at the junction cut, according to the standard production network module, problem solving. Network fault caused by lightning 3.1.3 Failure phenomenon: One to thunderstorm weather, the campus built on

Design Summary Network Office is the trend of modern enterprise development. This paper mainly expounds the function module of the transceiver management system based on B/s structure and how to use ASP and SQL Server to solve some related technologies, including the security of the system. Keywords network office; b/S structure; receipt and dispatch management system; ASP technology; security Introduction Traditional manual Office is unable to mee

CPU is going to be memory access or I/O access.The T1 state is the address state, and the processor issues the address of the memory or I/O port to be accessed. The CPU sends out a high 4-bit address via the address/status line A19/S6~A16/S3, ad15~ad0 the low 16-bit address via the address/data line. Since 8086 of the 20-bit address lines are multiplexed with the state and the data line, the address signal must be locked up in the T1 state. In the T1 state, the address latch of the CPU enables

if multiple hosts are configured, use only the first; get "hosts." Prefix, if there are multiple then use the first, then parse out hostname and port, build a Inetsocketaddress object address; Get connection timeout "Connect-timeout", set ConnectTimeout, If less than 1000 is configured, the default value of 20000 is used, the unit is MS; Gets the corresponding time "Request-timeout", sets the Requesttimeout, if the configured less than 1000, then uses the default value 20000, the unit MS; Gets

realized by using multiple circuits and packet switching connections on a single terminal. You can support business with different quality requirements, such as voice and packet data, and ensure high quality and perfect coverage. (2) High spectrum efficiency. WCDMA can efficiently use the radio spectrum. Since it uses single cell multiplexing, frequency planning is not required. The network capacity can be greatly improved by using the layered cell structure, adaptive antenna array and coherent

transmission, using a pair of twisted pair.C, RS-422 need a terminal resistor, the resistance is about equal to the characteristic impedance of the transmission cable.(8) RS-485 Serial Bus interfaceA, RS-485 is established on the basis of RS-422 standards, increased multi-point, two-way communication capacity, communication distance of dozens of meters to thousands of meters.B, RS-485 transceiver with balanced transmission and differential reception,

meta character as a normal character. For example, the regular expression/$ is used to match the dollar sign, not the end of the line; a wildcard character used to match point characters, not any characters. [] Matches any one of the characters in the parentheses. For example, the regular expression "b[aui]g" matches bugs, big and bugs, but does not match beg. You can use the hyphen "-" in parentheses to specify the

Ethtool is a command for querying and setting network card parameters.Profile:Ethtool EthX//Query EthX network Port basic settingsETHTOOL–H//Show command Help for EthtoolEthtool–i EthX//query EthX information about the network portEthtool–d EthX//Query EthX network Port registration informationEthtool–r EthX//Reset EthX mesh to Adaptive modeEthtool–s EthX//Query EthX network Port receipt Package statisticsEthtool–s EthX [Speed 10|100|1000]\//Set network port rate 10/100/1000m[Duplex half|full]\/

Settings for eth0:supported ports: [TP MII] Supported link modes:10baset/half 10 Baset/full 100baset/half 100baset/full Supports auto-negotiation:yes advertised link Modes:10bas Et/half 10baset/full 100baset/half 100baset/full advertised Auto-negotiation:no Note: Auto negotiate off speed:100 MB/s Note: Speed 100Mb duplex:full Note: Full duplex port:mii phyad:32 transceiver:internal Auto-negotiation:off Supports WAKE-ON:PUMBG wake-on:d Current Message level:0x00000007 (7) Link Detected:yes Note:

Python's way to make EXE executables---use Pyinstaller python to generate an executable program in the Windows EXE format with three options: Py2exe is well known, today to introduce Pyinstaller, this tool is available on a full platform. I used Python to make a utility for my company colleagues, and since the company has a lot of Windows with Mac Linux, it has been used to make the program executable, compatible,It just makes the program slow to start on the Linux platform and the Mac platform

modem modeAUI interface to turn RJ45 port. AUI connectors are DB15AUX, Remote connection configuration portS0/s1Console configuration PortISDN BRI PortWarning: You cannot connect a non-ISDN device to a router's ISDN product, otherwise damage the device!Console connection:RJ45 (console port)-rj45todb9 adapter-pc1, the PC needs a RJ45 conversion to DB-9 or DB25 converter.2, the communication port set to 9600 baud rate, 8 data bits, do not set parity bi

Template.js a JavaScript template engine, simple and easy to use. Provides a set of template syntax, the user can write a template block, each time according to the incoming data, generate the corresponding data generated HTML fragment, rendering different effects. Https://github.com/aui/artTemplate 1, characteristics (1), performance excellence, execution speed is usually mustache and Tmpl 20 times (Performance Test) (2), support Run-time debugging

First, download ethtool-4.6.tar.gz Download Second, installation Decompression: TAR-XVF ethtool-4.6.tar.gz Configuration:./configure--host=arm-hisiv300-linux --host Specifies the prefix of the cross-compilation tool chain Compiling: Make Build: Ethtool View: File EthtoolEthtool:elf 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), not stripped Copy: CP ethtool/usr/sbin//Copy to Development Board extension: Configuration and usage of./configure third, test

Tags: put contents UI mat new message Username code log PHP/** * Created by Phpstorm. * User:administrator * DATE:2017/7/21 * time:14:26 * $pdo =new dataconstruct (); * $tables = $pdo->getalltablenames (); * $pdo->printlog ($pdo->getalltableconstruct ($tables), "f:/logstr.php"); * $pdo->importsql (' E:/usertable.sql '); */namespace App\index\command;classdataconstruct { Public $dataBaseType; Public $host; Public $username; Public $password; Public $port; Public $database; Public $conn

Tags: lis permanent tis ted class str usage detailed script confEthtool usage of Linux commandsOriginal: http://www.linuxidc.com/Linux/2012-01/52669.htmthe Ethtool of Linux/unix commandDescription:Ethtool is a command for querying and setting network card parameters.Overview:Ethtool EthX//Query EthX network Port basic settingsETHTOOL–H//Show command Help for EthtoolEthtool–i EthX//query EthX information about the network portEthtool–d EthX//Query EthX network Port registration informationEthtool

shared memoryunsigned long base_addr; /* device I/O address */network device I/O base Addressunsigned int IRQ; /* Device IRQ Number */device use interruptunsigned char if_port; /* selectable AUI, TP,.. */Which port is used by a multiport device, and this field is for multiport devices only. This field can be used if the device supports both IF_PORT_10BASE2 (coaxial cable) and If_port_10baset (twisted pair).unsigned char DMA; /* DMA Channel */>> Inter

resets the event.The callback function points to the this dialog object.TypeFunctionIDSets the unique identifier for the dialog box. Prevents the Duplicate ID dialog box from popping up. Supports dialog.get(id) the use of an interface to get a dialog box. TypeStringExampledialog({ id: ‘id-demo‘, content: ‘再次点击运行看看‘}).show();dialog.get(‘id-demo‘).title(‘8888888888‘);RunPropertiesOpenDetermines whether the dialog box is open.returnvalueThe dialog box returns a value.Exampl