fluke vfl

-consuming measurement errors. Main Features: Linkware? Cable test Results Management software Use the Linkware software to manage the test results for copper cables and optical fibres. A powerful Linkware cable management software that helps you organize, edit, view, print, save, or archive fast test results through work locations, users, buildings, etc. You can combine test results into an existing database, sort, find, or organize them by any data field or parameter. You can download the

First, use "formula":1, Frame: The origin and its position to determine its position2. AutoLayout: Define your location according to the location of the reference view3, AutoLayout: Relative layout constrains the relationship between views and views to assign a position on the screen4. Use the VFL (visual format Language Visual formatting language) to constrain the relationship between views and views by adding characters5, the use of AutoLayout must

constraintWithItem: redView attribute: Invalid relatedBy: Too toItem: blueView attribute: Too multiplier: 1.0 constant: 0.0]; [self. view addConstraint: redRight]; // 3. 2. make the red Height = blue height NSLayoutConstraint * redHeight = [NSLayoutConstraint constraintWithItem: redView attribute: descrirelatedby: descritoitem: blueView attribute: descrimultiplier: 1.0 constant: 0.0]; [self. view addConstraint: redHeight]; // 3. 3. make the red top = blue bottom + spacing NSLayoutConstraint * r

About the iOS layout automatically after the IPhone6 is Autolayout,autolayout is very good, but sometimes we need to page layout manually, the VFL is a choice, and the VFL is not complex, understanding is very easy, the actual development of the special cooked well, It would take a bit of work to get the first look. Masonry is a simplified version of the VFL, the

use cheaper 1000BASE-TX devices. The transmission performance of cat6 Cabling Standards is much higher than that of cat5e, which is suitable for applications with the same transmission rate or higher than 1 Gbps. It opens the door to the development of high-speed applications in the future. Cat6 cabling standards not only provide a new network application platform, but also greatly improve the service quality from digital voice and video applications to desktops. The introduction of the six sta

The author of the company recently received a number of user calls, consulting their network in the use of some of the information points will be automatically reduced by Gigabit (project delivery less than 1 years), the communication that users of these fault information points when acceptance using fluke equipment for testing, test performance to meet the requirements, Further communication The selection channel is used as acceptance test standard,

constraintwithitem:yellowview attribute:nslayoutattributebottom relatedBy: Nslayoutrelationequal ToItem:self.view Attribute:nslayoutattributebottom Multiplier:1.0Constant:-margin]];A core formula is used here.Obj1.property1 = (Obj2.property2 * multiplier) + constant valueMultiplier and constant are vector coefficients and offsets.And to avoid the constraints of automatic scaling that are generated by the system, this sentence is usually addedSystem default this property is YesAbout the

Because I also began to learn automatic layout, so there may be errors, please include a lot, and point out the errorWith regard to automatic layout, many introductions are now made with Xib and storyboard, but the use of pure code AutoLayout is getting lessBelow the main general introduction of the next few days to learn the pure code use AutoLayout Some of the possible useful things.First create 3 UIViewand initialize the view.To adjust the layout of the child view before using automatic layou

NslayoutnotanattributeNote that the right-hand incoming constant will be negativeAdd to Where?If you add it to a parent view, you can add it to yourself because there is no reference.Xi. Add Red ViewInput method: Universal: Chinese language use English markAttention:1. Don't forget to close the Translatesautoresizingmaskintocontraints property2, make sure that the relevant controls are already on their parent control3. Do not set frame to viewReview constraints, is the reference Blueview12. Use

= this_module, . Llseek = no_llseek, . Open = video_open, }; It only implements one open function! So how can we read videos or configure parameters? Let's look at video_open: /* * Open a video device-fixme: obsoleted */ Static int video_open (struct inode * inode, struct file * file) { Unsigned int minor = iminor (inode ); Int err = 0; Struct video_device * VFL; Const struct file_operations * old_fops; ....................... Old_fops = file-> f_op;

Constraints: Determine the position and size of a control by adding a constraint to the control Reference: When adding a constraint, who will add it (can be a parent control or a sibling control) 51.Autolayout Warnings and Errors Warning: The control's frame does not match the constraint added Error:1> lack of necessary constraints;2> two constraint conflicts 52. The principle of adding constraints through code For a constraint relationship between t

following types of errors: open circuit, short circuit, and ultra-long. Open Circuit and short circuit have great impedance changes at fault points. For such faults, we can use the HDTDR of FLUKE DSP4000? Technology. The fault point causes different degrees of reflection on the test signal, and the impedance changes of different fault types are different, therefore, the test device can determine the fault type and distance by testing the signal phase

Testing tools are the means to achieve automated testing. The rational use of testing tools can not only improve the network diagnostic capability, but also facilitate network management. Generally, broadly speaking, network testing tools can be divided into physical cable tester, network operation simulation tool, protocol analyzer, dedicated network testing equipment, network protocol consistency testing tool, and network application analysis testing tool. The following describes the commonly

The new stricter TIA standards and Cat 5e/Class D and Cat 6/Class E high-speed data cable systems have higher requirements for jumpers than ever before. Currently, Fluke network provides the most convenient jumper testing method. Simply connect the sturdy and compact patch cord test adapter to the DSP-4X00 cable analyzer and download the test database, you will have a high-speed, fully automated patch cord testing method that meets the TIA standard. I

Fluke network's distributed analyzer (OPV-WGA, hereinafter referred to as WGA) analyzes the distributed switching Environment Network with a new method, allowing users to view the entire layer-7 network in the most rapid and simple way as needed. WGA works with the network monitoring Console (NIS-OPV) and Protocol Analysis experts to easily monitor and analyze 10/100/M Ethernet Over the desktop. It can be installed locally or remotely on the network.W

wired network. The second is the mobile design, that is, applications can only be moved on wireless networks. The third is security design, which includes two aspects: wireless network security and user identity security. The last is multi-service design, so that multiple applications can run. Pay attention to actual deployment What should I pay attention to when I understand the content and principles of wireless planning in actual deployment? Fluke

Some people think that IP phones are just another application running on the data network. However, imagine this situation: the quality of VoIP calls is getting worse and worse, and even the entire enterprise IP phone system stops running. Terrible? Pay attention to VoIP and add specialized VoIP tools for your network management platform. Recently, Network World has evaluated a series of emerging products, all of which can be attributed to VoIP analysis tools. They help VoIP network administrato

low unknown compatibility (with network card, connecting hardware) Good poor individual difference big flexibility (distance length) good poor service life is unknown the use of convenience is very poor unknown jumper structure mainly from the jumper cable conductor, Crystal Head, protective sets of these three aspects, the following first let us more intuitive look at the finished jumper and on-site production of the jumper in kind contrast (left is the finished jumper, the right is

/ * Say a few words about AutoLayout* When there are AutoLayout and autoresize child controls within a control, the parts to be fitted autoresize* translatesautoresizingmaskintoconstraints default is to open the convertedThe size of the AutoLayout view can be calculated using the following code under AutoResizeif (!contentview.translatesautoresizingmaskintoconstraints) {[Contentview needsupdateconstraints];[Contentview updateconstraints];cgsize ss = [Contentview systemlayoutsizefittingsize:uilay

premise is that the source code used to Xib to write VC.2>> handwriting vc+ handwriting AutoLayout;Personally think that this scheme is the most cumbersome solution, the first need a large number of coordinate calculations, and then need to understand the VFL syntax very well, to solve the constraints of dependency missing or conflict problems, the result is the coordinate calculation cumbersome and complex, code changes are very large, code increase