rs232 dte

Serial Communication Overview There are many kinds of serial communication protocols, such as rs232,rs485,rs422, even the popular USB is serial communication protocol. And the application of serial communication technology is everywhere. Perhaps everybody sees most is the computer serial port and the modem communication. Remember when the PC was first popular in China (about five years before the 90 's), when someone even used a serial line to share

Application of horizontal scrolling lyrics synchronization in javascript reference address: http://aboutplayer.com The Code is as follows: Var lrc0, lrc1, lrc2;Moveflag = false;Var top, bottom;Var lrcobj;Var lrctop;Predlt = 0;Curdlt = 0;Function lrcClass (tt){This. inr = [];This. oTime = 0;This. dts =-1;This. dte =-1;This. dlt =-1;This. ddh;This. fjh;If (/\ [offset \:(\-? \ D +) \]/I. test (tt ))This. oTime = RegExp. $1/1000;Tt = tt. replace (/\ [\:

Understand and take: How frame-relay works Corresponding Teaching Video in: http://edu.51cto.com/lecturer/user_id-7648423.html 9.9 release, which can be viewed after the Administrator's 24-hour review. The course name is Cisco CCNA-certified Frame Relay analysis 200-120) 9 lessons. Frame Relay (Frame Relay) is an interface standard between a network and a data terminal device (DTE). It is a computer-oriented WAN connection for group switching. Beca

dedicated asynchronous serial ports, and the interface name is async. The asynchronous serial port can be set to a leased line or a dialing method. the dialing method is more commonly used in applications. When an asynchronous serial port is connected to an external modem or ISDN Ta, it can be used as a dialing interface. It encapsulates the Link Layer Protocol slip or PPP and supports network protocols such as IP and IPX. Synchronous Serial Port features: It can work in the

Function In programming often only remember part of the function name, want to quickly locate, but the C # editor function list has no search function, use regular expression search can solve this problem, now write this process as a macro. How to use: Open the VS macro editor and paste the following code. Specify a shortcut key for this macro (optional) Use the shortcut key or run the macro directly, enter the function name. Use F3 to search for the next function that meets the requirements. S

Automatic scanning read/write distance 4 W transmitting antenna unidirectional ≥ 1.3 m, omnidirectional ≥ 0.9m antenna connector 50Ω SMA Communication Interface RS/232, VGA, DI power warning light, DC12V; Control System and LCD, DC24V, 1A warning light source over-Bright Light Emitting Diode Communication Interface RS232, VGA, USB, RJ45, DI, DO power supply 220 V, AC single board control module operating system Windows, Dos transmit power ~ 10 W 1 dB

Reference: http://aboutplayer.comCopy codeThe Code is as follows:Var lrc0, lrc1, lrc2;Moveflag = false;Var top, bottom;Var lrcobj;Var lrctop;Predlt = 0;Curdlt = 0;Function lrcClass (tt){This. inr = [];This. oTime = 0;This. dts =-1;This. dte =-1;This. dlt =-1;This. ddh;This. fjh;If (/\ [offset \:(\-? \ D +) \]/I. test (tt ))This. oTime = RegExp. $1/1000;Tt = tt. replace (/\ [\: \] [^ $ \ n] * (\ n | $)/g, "$1 ");Tt = tt. replace (/\ [^ \ [\] \:] * \]/g

ArticleDirectory Introduction Hardware development Software Development Disclaimer: This article is an original work and copyright belongs to the author of this blog. All. If you need to repost, please indicate the source Http://www.cnblogs.com/kingst/ Introduction In this section, we will talk about RS232, commonly known as serial port. Everyone should be familiar with this and have nothing to say. This section is mo

();} Private excel. Application m_objexcel = NULL;Private excel. workbooks m_objbooks = NULL;Private excel. _ workbook m_objbook = NULL;Private excel. Sheets m_objsheets = NULL;Private excel. _ worksheet m_objsheet = NULL;Private excel. Range m_objrange = NULL;Private object m_objopt = system. reflection. Missing. value;}} 3. Call example. Private void btnexport_click (Object sender, system. eventargs E){Datatoexcel DTE = new datatoexcel ();

Explore the efficiency of half-duplex Gigabit Ethernet switches. Recently, GE Ethernet switches have been favored by many friends. Today, let's take a closer look at the charm of GE Ethernet switches! To solve the efficiency problem of half-duplex Gigabit Ethernet switches, IEEE introduces the frame burst technology. For example, if a DTE sends a 64-byte frame, MAC will add a 512-64 = 448byte carrier extension sequence to it. If the frame length sent

RS-232C specification standard interface has 25 lines (4 lines, 11 control lines, 3 timing lines, 7 spare and undefined lines), commonly used only 9:RTS/CTS request sending/clearing sending Flow ControlRxd/txd data transmission and receivingDSR/DTR data terminal ready/data set ready Flow ControlDCD Data Carrier DetectionRinging-ri ring indicatorSG signal locationThe specific definition is as follows:RTS is used to indicate that DTE requests DCE to sen

Add control to Toolbar Add envdte. DLL to your projectString progpath = environment. getfolderpath (environment. specialfolder. ProgramFiles );Try {Type latestdte = type. gettypefromprogid ("visualstudio. DTE ");Envdte. DTE = activator. createinstance (latestdte) as envdte. DTE;If (DTE! = NULL ){Window win =

Address: http://www.myarticlemall.com/Article/Cisco-CCNA-Exam-Tutorial---Troubleshooting-Directly-Connected-Serial-Interfaces/2611 Controllers are the part of the interface that makes the physical connection. Most important to us is what kind of cable is attathed to a serial interface. A dte (Data terminating equipment) cable is the normal cable you shoshould use.Being DTE means you have CT the other end

, this series of products provide optional photoelectric isolation (2 KV) and Surge Protection (25 kv esd) functions ｡ This product features: Optional photoelectric isolation (2KV) and Surge Protection (25KV ESD) features; Automatic Control of Data flow ADDC (Automatic Data Direction Control) features; RS-485 Data Control l: ADDC can be controlled through the RTS; built-in terminal resistance; chip hardware traffic control to ensure no data loss; advanced ASIC design, low rework rate; support fo

, this series of products provide optional photoelectric isolation (2 KV) and Surge Protection (25 kv esd) functions ｡ This product features: Optional photoelectric isolation (2KV) and Surge Protection (25KV ESD) features; Automatic Control of Data flow ADDC (Automatic Data Direction Control) features; RS-485 Data Control l: ADDC can be controlled through the RTS; built-in terminal resistance; chip hardware traffic control to ensure no data loss; advanced ASIC design, low rework rate; support fo

. * // @ Overridepublic boolean onInterceptTouchEvent (MotionEvent ev) {if (! IsIntercept (ev) {return false;} return super. onInterceptTouchEvent (ev) ;}@ Overridepublic boolean dispatchTouchEvent (MotionEvent event) {boolean dte = super. dispatchTouchEvent (event); if (MotionEvent. ACTION_UP = event. getAction ()! Dte) {// onItemClickint position = pointToPosition (int) event. getX (), (int) event. getY (

ISO/IEC 7498, which defines the 7-tier framework for network interconnection, the Open Systems Interconnect Reference Model (OSI model ).A switch is like a neighboring street, and a router is the intersection of a street. (The second layer of the switch , the data link layer, also has four layer, seven layer switch; the router works on the third layer).See (http://www.he.edu.cn/learn/wlxy/netlan/index.html)Crossover and direct-attached network cablesFirst, direct connection interconnectionBoth e

Cisco port status: CSU ── channel server unit, DSU ── data server, unit, DTE ── DataTerminalEquipment 1. Serial * is down, line protocol is down (DTE) faults: [1] No power is added to the vro. [2] LINE is not connected to CSU/DSU. [3] hardware error. Solution: [1] Check power supply. [2] Check whether the cables and serial ports used are correct. [3] switch to another serial port. 2. Serial * is up and lin

is a public header, and a hole-shaped joint is a mother. The appearance of the 9-pin serial port is shown in 2. Figure 2 DB-9 exterior Diagram From figure 2, we can see that in the 9-pin serial port connector, the pin definitions of the public and mother heads are different, which requires special attention. So what are the functions of these pins? The functions of the 9-pin serial port and the 25-pin serial port are described in 3. Figure 3 9 common pin functions of needle serial po

Address: http://blog.csdn.net/qq736934266/article/details/3582764 1. General rules1.1 Pre-division of digital, analog, DAA signal cabling areas on the PCB.1.2 numbers, analog components and corresponding cabling should be separated and placed in their respective cabling areas as far as possible.1.3 high-speed digital signal cabling as short as possible.1.4 The sensitive analog signal must be as short as possible.1.5 reasonably allocate power supplies and locations.1.6 dgnd, agnd, and field sep