xfp transceiver

# Include # define uchar unsigned char uchar rtemp, sflag; void serialinit (void) {txsta = 0x24; // enable the transmitting enable and high baud rate, the initial value of trmt can be 0 to 1 rcsta = 0x90; // enable serial port, continuous receiving,

# Include # define uchar unsigned charuchar rtemp, sflag; void serialinit () // 11.0592m Crystal Oscillator with baud rate of 9600 {tmod = 0x20; // set the timer 1 operation mode to 2th1 = 0xfd; TL1 = 0xfd; tr1 = 1; // start the timer 1sm0 = 0; //

This article describes how to use the socket interface to manage the Buffer Queue in a Linux user space and send and receive two threads. The Code includes the following points: 1) Use two threads to manage the sending and receiving queues, and

Non-blocking I/O includes non-blocking input operations, non-blocking output operations, non-blocking receiving foreign connections, non-blocking initiating outgoing connections. The functions included are: Read, Readv, recv, Recvfrom, Recvmsg,

Kernel version: 2.6.34 UDP packet ReceptionThe reception of UDP message can be divided into two parts: the protocol stack receives the UDP message, inserts the corresponding queue; the user calls Recvfrom () or recv () system call to take out the

To add a using instruction set: Using System.Net.Sockets; Using System.Threading; Using System.Net; Add definition (IP address IP interface Berkeley socket Interface): Private IPAddress ServerIP = Ipaddress.parse ("127.0.00.1"); Private

Recently learned some of Python's server-side programming, recorded here. Send Get/post Request # coding:utf-8 Import httplib,urllib #加载模块 #urllib可以打开网站去拿 #res = Urllib.urlopen (' http://baidu.com '); #print res.headers #定义需要进行发送的数据

Recently, someone often mentions how Exchange's multiple domain names are implemented, simply collating a document and communicating with everyone. By default, the default policy for Exchange Server 2010 is to send and receive mail using the same

Abstract: This paper discusses how to use the serial port with FIFO to reduce the number of received interrupts, and gives the frame packing method through a custom communication protocol format, and then introduces a special serial port data

transmission rate, including 8 gbabit Fiber Channel and 10GbE. Introduced the SFP + module version of optical fiber and copper core, Compared with the Xenpak, X2, or XFP version of the module, the SFP + module retains some circuits on the main board, rather than in the module. SFP type SFP transceiver has a variety of different sending and receiving types. You can select an appropriate

Some cisco switch modules organize the TwinGig Converter Module of the Catalyst 3750-E Series Switch: www.2cto.com TwinGig SFP converter can convert the 10 thousand M Ethernet X2 interface into two Gigabit Ethernet Small pluggable (SFP) ports. XENPAK uplink modules of Catalyst 3750G series switches: common optical modules of Ethernet switches include SFP, GBIC, XFP, and XENPAK, respectively: www.2cto.com SFP: Small Form-factor Pluggable

Cisco-Huawei Optical Module Classification Comparison summary: This article introduces: Cisco GLC-SX-MM,GLC-LH-SM optical Module and other product parameters and pictures, Huawei Optical module model and classification knowledge.Optical Module Classification and introductionFirst, Cisco Manufacturers1. Multimode Optical ModuleModel: GLC-SX-MMDescription: SFP,1000BASE-SX Gigabit module, 850 nm, multimode 550 m2. Interacting ModuleModel: GLC-LH-SMDescription: SFP,1000BASE-LX Gigabit Module, 1310 n

ObjectiveIn the past few weeks, I have investigated and researched the security of GSM in many aspects, such as the loopholes in GSM communication protocol. In addition, I have a security audit of the most widely used BTS software in the world today. In this article, I'll show you a few of the vulnerabilities I've found in this open source product that will allow an attacker to invade the base station transceiver (BTS) and remotely control its

logic unit/Function Generator74ls382 arithmetic logic unit/Function Generator74ls384 8-bit * 1-bit complement Multiplier74ls385 four-Serial Multiplier/Multiplier74ls386 2 input four exclusive OR gate74ls390 dual-decimal counter74ls391 dual four-digit binary counter74ls395 4-bit general shift register74ls396 eight-bit storage register74ls398 quad 2 Input Multi-Channel Switch (Dual Output)74ls399 quad-2 Input Multi-Channel converter (with select)74ls422 monostable trigger74ls423 double single ste

electrical port and network device interface, or both ends of the device interface duplex mode mismatch. 2 Twisted-pair cable and RJ-45 head have problems, to detect 3 Fiber connection problem, jumper is alignment device interface, tail fiber and jumper and coupler type match etc. 5. Optical transceiver Connection After the two ends can not communicate 1 fiber connected to the reverse, TX and RX-Connected fiber swap 2 RJ45 interface and external

characteristic impedance Z0 of the transmission line cable. The RS-485 is recommended to use a 120 Z0 cable, so each end of the cable is usually used 120 resistance for end-to-end connection. Figure 4: RS-485 end-to-end using common mode noise filter. Applications in a noisy environment often use two RC low-pass filters to replace these 120 resistors to enhance the filtering of common-mode noise (see figure 4 ). It is worth noting that the resistance values of the two filters should be equal

). Note that the IP addresses of the two APS must be in the same CIDR Block and the same channel can be used to achieve wireless connection and resource sharing between the two wired LAN networks, or expand the wired network. It should be noted that both APs adopt oriented antennas. Opinion 2: Use optical fiber Many netizens have agreed to this solution, because the current price of fiber optics is also more than 10 pieces per meter, and the cost of pulling fiber cables between two points is no

work of other nodes;G. Twisted Pair wires are generally not installed outdoors. When a small part is installed outdoors, the casing should be installed in the outdoor part;H. Select the eight-core twisted pair wires. When you install the connectors on your own, the eight wires should be installed properly. Do not install only four wires or cut off the other four wires.Iv. Network Device InstallationHub InstallationA. the hub should be installed in a dry and clean room;B. The Hub should be insta

explain or desc in front of SQL to view the statement executionEXPLAIN SELECT * from table name;Third, paste the report when you write some of the disgusting SQL1. Query the eligible item number according to the query criteriaSELECT DISTINCT (XP. Id) from Xmgl_finance_plan XFP left JOIN xmgl_project xp on xfp.proid = XP. Id WHERE 1=1and xp.procategory in (' ITER973 ') and XP. Id in (0,1,2);2.--The total amount of all budget accounts corresponding to

, to meet the needs of data communication, has a strong application value. 1 Ethernet-based laser wireless communication system The combination of Ethernet and laser wireless communication can give full play to the advantages of the two systems and improve the application range and reliability of the system greatly. Fig. 1 is a schematic diagram based on one end of the Ethernet laser wireless communication system, and the other end of the structure and the end of the symmetrical state. From