Netxpert xg2 helps you solve the problem of "Cabling installation and maintenance"

When transferring large amounts of data , Optical fiber is becoming more and more important , And copper cable will continue to play an important role in the future , Therefore, we should not only compare the advantages and disadvantages of the two types of cabling , We should also explore the source of errors in optical fiber transmission .

Testing the accuracy of optical cable transmission loss is very important for troubleshooting . However , Especially in the case of optical fiber , This process is time-consuming and expensive , Technicians must collect 、 Record and analyze a large amount of measurement data to track intermittent faults . And now ,Softing You can use a new method , Check the changes of data transmission in real time ——Softing IT Networks One of the devices in is named “LiveLight” The function of .

One   Comparison of optical cable and copper cable

Compared with copper cable , The advantages of increasing the use of optical cables are obvious —— Through a suitable transceiver , Optical cables can cover 40~80 Kilometer distance , And can transmit up to 400Gbit/s The data of , and 8 Copper like cables are only allowed at about 30 Distance transmission of meters 40Gbit/s. Besides , Optical fiber is lighter and more compact , This means that multiple optical fibers can be installed into one optical cable , Thus ensuring a higher transmission speed . also , Optical fiber network has higher security .IEEE Is also moving beyond 1TBit/s The goal is to move forward , This is also the reason why optical cables have become indispensable in data centers .

However , Optical fiber cable is much more sensitive than copper cable . Although ordinary copper jumpers can withstand external effects such as kinks or other mechanical stresses , Even damage can play a role to some extent , But the situation of optical fiber is different —— Small bends can also cause glass fibers to break quickly .

The correlation of cleanliness is another point that is more important when using optical fiber than when using copper cable . In order to maintain a high data transmission rate , Optical cables must be protected from pollution , Otherwise, the attenuation in the optical cable will increase a lot .

All in all , When transmitting data through optical fiber , Sensitivity to materials and dust is a common source of error . For all that , The advantages of using optical networks in buildings, campus backbone networks and data centers are still very huge , And this is an important way for operators to meet the growing demand for data transmission . thus it can be seen , Reliable testing and related troubleshooting are particularly important in the future .

Two Measurement difference of optical fiber cable

There are two related measurements in the optical fiber environment ：OTDR measurement （ Optical time domain reflectometer ） And attenuation measurement .OTDR Measurement is mainly used to determine the error source caused by the wrong plug or cable fracture . In the course of measurement , The propagation time of the reflected light pulse is used to determine the location of the fault , The fault type can be detected from the attenuation curve of the pulse . 

When measuring attenuation , The test process will collect information about how much attenuation the entire optical fiber link has and whether the value is within the specified range . This is a calibrated measurement , You can use things like Softing IT Networks Of WireXpert Such measuring equipment . The result of the attenuation test is the value displayed by the device in a manner similar to that of a multimeter . 

It is the same as using a power meter and a light source to measure the attenuation on the route , These methods also have several key points , For example, although the value will change when the position of the cable changes , But the changing process data cannot be recorded .

3、 ... and   Real time transmission loss test “LiveLight”

Now you can use NetXpert XG To clearly locate such errors . Verifier NetXpert XG-Plus It also has additional functions , For example, using “LiveLight” Function to test and record the transmission loss in the optical cable .NetXpert XG Use the timeline to show the value changes over a long period of time , And now this function can draw a conclusion about the cause of transmission loss , To help technicians troubleshoot . Besides , Such a test program can last up to 24 Hours , Without interrupting , To show long-term trends . 

Although classical attenuation measurements only support recording instantaneous values , And cannot record changes , But this test of transmission loss provides several useful functions —— Including recording process values , Show history on the display , It is convenient for troubleshooting and exporting the results as CSV file , For further processing . This is “LiveLight” The method brings two basic application possibilities ： One side , Troubleshooting can be completed in a few minutes ; On the other hand , Technicians can regularly observe routes for a long time , This means that intermittent faults can be repaired in a short time . In this way , It is also easy to track whether the transmission loss changes after the junction box is assembled .

Four Customer Stories

| Case study 1：

The customer is an optical fiber cabling company , Provide services in the field of optical fiber cabling in the region and nationwide . By using high-quality materials and cooperating with well-known manufacturers , Customers provide a full range of high-quality optical fiber cabling systems in the industry .

The customer inspected a group of optical cables at the city hall , The optical cable connects two buildings , For heating control , Here, connection failures often occur in the control , The heating company blamed the error on the optical fiber connection . Customer pass OTDR Check the circuit and no excessive loss is found , For safety's sake , Customer use Softing NetXpert XG Conduct data transmission test —— Use 1Gbit/s transmission speed , All packets have arrived correctly , Therefore, the optical fiber wiring fault can be eliminated , And the fault may be in the hardware or programming of the controller .

| Case study 2：

The customer inspected several optical fibers and cables for the end customer , End customers always complain about poor transmission speed , Even newly installed OM4 and OM5 Optical cables are also often interrupted . The network is installed by another company , The customer found the cause of the error by checking it .

Except for the classic OTDR Outside the measurement , The customer used Softing NetXpert XG Conduct 10Gbit Performance testing . The main sources of errors are interface contamination and missing dust caps . The reflection of the interface is very poor , But after cleaning, the value was significantly improved .

Last , Use Netxpert XG Not only passed 10Gbit/s Speed performance measurement , And also through XG Transmission test of , And will be similar to the switch to send packets to the device , from XG To measure the bit error rate 、 Attenuation and other factors .

( Image from ：https://www.linkedin.com/posts/fiber-splice-gmbh_softing-netxpert-kabelabrqualifizierer-activity-6764920836664135681-3q8T）

In addition to optical fiber connection ,NetXpert XG It also supports copper cable testing .

5、 ... and Bit error rate test 、 Signal to noise ratio and delay deviation

By following IEEE 802.3an Perform bit error rate test （BERT） And standards based testing ,NetXpert XG Verifiable up to 10Gb/s Error free data transmission . The test includes more parameters that may affect Gigabit transmission , For example, signal-to-noise ratio （SNR） And delay deviation . Delay skew indicates the signal time delay between the used pairs . Excessive delay will lead to serious degradation of transmission performance , Make the receiver unable to interpret the data stream correctly . Delay skew, like signal-to-noise ratio, is considered as a key parameter for reliable data transmission .

6、 ... and Active power PoE++ Network troubleshooting

For active PoE++ Network troubleshooting ,NetXpert XG It also provides a comprehensive tool set —— Include voltage drop load test to verify PoE Stability of power supply 、 Identify the devices connected to the network and detect the availability of priority devices ......

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