single mode gbic

I. Introduction and background In recent years, optical fiber communication systems have made great progress to meet the increasing bandwidth requirements. The main factors limiting the performance of single-mode optical fiber (SMF) systems include attenuation, dispersion, and non-linearity, as well as recently noticed polarization mode dispersion (PMD ). For a t

1. Overview 1.1 intent The single-piece mode ensures that an application has only one globally unique instance and provides a global access point to access it. 1.2 usageWhen a class can only have one instance and can be accessed globally. This unique instance can be extended by sub-classes and can be used without changing the code.The factory class we introduced earlier is often instantiated as a globally

subclass, set the class to final. Use static members to save Unique objects Single-piece mode example: FastBuild =! $ This-> fastBuild; }}// Method for reading the effective state of the quick build. Use public to publicly call the public function getStatus () {return $ this-> fastBuild ;} // obtain the unique public function getInstance () {// if the object is not created, create it if (! Isset (self

After learning the CentOS system for a long time, we have learned more about it. Here, we mainly learn how to enable (or restart) The server host when the CentOS system is in a normal state, the system pilot program can automatically boot the Linux system to multi-user mode and provide normal network services. If the system administrator needs to perform system maintenance or a startup exception occurs, the system needs to be managed in

Forget the Linux password what to do? We can reset the root password using Single-user mode. However, using Single-user mode has the premise that the system boot (GRUB) works properly, otherwise the repair mode will be used for system maintenance. Special Note: Enter

This paper is the second article of design pattern learning notes, which is mainly about the single case mode. This includes lazy, a hungry man, registration, and lazy-type improvements, as well as an instance of reading propertoes configuration files. It is expected to be divided into three sections. This is the first section, first analysis of the simplest of the lazy and a hungry man-style. The

provide this instance as an entire system.The structure of the singleton pattern:The singleton pattern is the simplest design pattern of the structure, which contains only one class, the Singleton class.The implementation of the Singleton pattern: Public classSingletonpattern {//static Private member variable Private StaticSingletonpattern instance =NULL; //Privatization Constructors PrivateSingletonpattern () {}//Static Private Factory method returns a unique instance

Go to msdn http://msdn.microsoft.com/zh-cn/magazine/cc507641.aspx :dino esposito Code download location:Cuttingedge2008_05.exe(203 KB)Browse the code onlineDirectory Ajax mode influence single page interface model disadvantages of single page interface model accessible rich Internet applications Ajax mode overview uniq

One, what is a single case mode? 1, meaning as an object's creation pattern, the singleton pattern ensures that a class has only one instance, and instantiates it and provides it globally to the entire system. Instead of creating an instance copy, it returns a reference to an instance stored within a singleton class. 2, the single example

The knowledge that Linux enters Single-user mode (single) is a must for administrators because Single-user mode is a way to modify the system configuration or implement maintenance without affecting other users (or other users). Single