简述制作网线的方法

1、简述制作网线的方法dealing with computer network will often do cable, network cable production is actually very simple, is to keep 4 to 8 twisted-pair cable core cable is inserted into the crystal head according to certain rules, so this kind of cable materials needed to make only twisted pair and crystal hea

2、d; the required tools are also simpler, usually with just a special c 1 amp. the making of the double stranded wire mesh is actually the making of the crystal head of the mesh wire, which is the difficult part of the network linedirect the production of the rj-45 jointstep 1: use a twisted-pair cabl

3、e clamp (of course you can also use other trimming tools) put one end of the five types of twisted-pair cable cut (it's best to cut a meet the requirements of the length of the wiring cable), and then the cut, the end is inserted into the gap of cable c 1 amp used for stripping, pay attention to

4、 the cable cannot bend, straight, inserted in standing up to cable clamp at the back of the gears, until slightly closed line pressing pliers slowly rotating a circle (without having to worry about might damage the cable conductor in side the foreskin, because the wire stripping with a certain dista

5、nce between each two blades, this distance is usually 4 to the diameter of the conductor), let the blade open twisted-pair cable protection rubber, unplug the rubber this is shown in the figure below. of course, you can also use a special wire stripping tool to peel the linesmall tip: the length of

6、the wire c 1 amp is usually exactly the length of the crystal head, which can be used to prevent the strip from being too long or too short il is not beautiful to strip the line too long, but also because the line can，t get stuck by the crystal head, it is easy to loosen. short, due to the presence

7、of foreskin, stripping is too thick, not fully inserted to the bottom of the crystal head, crystal head pin can，t contact with the cable core wires in good condition, that is not to make a successstep 2: after stripping, you can see the four pairs of the double stranded wires, and you can see that e

8、ach pair is different. each pair of wound wire is made of a thread with a corresponding color and a white interwoven thread with a small color the colors of all four colors are brown, orange, green and bluearranged side by side, 4 for the core word first and then to separate each pair of conductor (

9、the note not cross line arrangement, that is to say, every adjacent to core), and according to the order of the unified (unified gives priority to color thread left and right of such as unified for the corresponding color of white core) note that each core thread will be straightened and will be arr

10、anged separately, not overlapping then use the wire tongs perpendicular to the alignment of the core line (don，t cut too long, just cut it), as shown in the figure below from left to right we set the order "1.2. 3.4. 5. 6. 7.8step 3: the level of the left hand holding crystal head (plastic buck

11、le side down, opening towards the right), and then to arrange cut qi, with eight core aim at crystal head split into the crystal head, side by side note you must see to it that each conductor is inserted to the bottom of the crystal head, can，t bend (because crystal is transparent, so you can from c

12、rystal have screens side can clearly see that each conductor inserted location)step 4: make sure that all the core wires are plugged into the bottom of the crystal head, and you can put the crystal head of the mesh wire directly into the wire c 1 amp gap, as shown below. because the structure of the

13、 gap is similar to the crystal head structure, it is necessary to put in the right place in order to make the position of the clamp handle in the back press correctly. when the crystal head is put down, it can press the handle of the wire clamp, so that the needle of the crystal head can be inserted

14、 into the wire thread, and the con tact with it is good. then use your hand to gently pull the wire and the crystal head, to see if it's tight, you，d better press it once, and the most important thing is to be careful where you put it.at this point, the rj-45 is pressed according to the method o

15、f making twisted-pair cable is the same on the other side of the crystal head, note that the core order must be exactly the same with the order of the other end, so that the whole cable is finishedboth sides of the crystal head can be tested with a network line tester, and if the eight lights in the

16、 test instrument are green flashing in turn,demonstrate the success of the network line. if there is any a lamp for the red or yellow light, all that exist cut-off or poor contact phenomenon, the best first ends of crystal head again with the cable clamp pressure, measured again, if the fault is sti

17、ll, to check whether the con ductor on both ends of the order, if not the same, with the cut end to press the other end of the wire order making crystal head if the thread order is the same, but the test device still shows red or yellow lights after reclaiming, it indicates that there must be a corr

18、esponding core contact at this time no choice but to cut off one end of the first order according to the other side core redo a crystal head, measured again, if the fault disappear, don't need to redo the other end of the crystal head, otherwise have to cut off the other end of the original crys

19、tal head also redo. until the test was all greentwo, the jump line rule of the network linewe described above, is the most simple straight line method, this type of cable is usually only used from the hub (switch), the wall module information links to workstations, and not one of the most ideal meth

20、od. the main reason is that the network is not considered to be a crosstalk between the interwires, and is more influential in high-speed networks such as 100mbps to this end, the ieee standards committee has developed a number of line-jumping methods for specific usesthere are several types of wiri

21、ng standards in the network:(1) a pair of applications namely twisted-pair cable conductor on both ends to one to one correspondence, namely 1 if the end of the foot is green, the other end of the first foot must also for green core, so that make to twisted pair is usually referred to as straight li

22、ne however, it is important to note that the four core lines are usually not separate, and that the two core lines of the core pair are usually adjacent this line is usually used between hubs or switches and computers(2) 1-3, 2-6 crossover although there are four to eight twisted-pair cable conducto

23、r, but in fact, only four of them in the network, namely, crystal head 1, 2 and 3, 6 feet, they charge, signaling role respectively. the crossover cable conductor arrangement rule is: 1 foot even at the end of the cable at the other end of the 3 feet, at the end of the cable connect the other end of

24、 the 6 feet 2 feet, the other foot one-to-one correspondence this arrangement is usually called a ''crossing line", and the rules for the pin number of the crystal head are shown below.for example, when the line from left to right at the end of the wire sequence is: white, green, green,

25、 white, orange, blue, white and blue, orange, white, brown, brown, on the other side should be the core of order from left to right in turn as follows: white orange, orange, white, green, blue, white, blue, green, white, brown, brown. when one end of the line from left to right order conductor: whit

26、e orange, orange, white, green, blue, white, blue, green, white, brown, brown, on the other side should be the core of order from left to right in turn as follows: white, green, green, white, orange, blue, white and blue, orange, white, brown, brown. this kind of cable in the hub (switches) is commo

27、nly used in the level of even, server connected to the hub (switch), peer-to-peer network computer connected directly, and so on and so forth(3) 100 m connection. this is one of the most commonly used line making rules a megabytes means it can meet the speeds of 100 megabytes of bandwidth although i

28、ts connection is one to one correspondence, but the color of each foot is fixed, concrete is: 1 foot - orange, orange, white, and 2 feet feet - green and white, 4 feet - 3 - blue and white, blue, 5 foot 6 feet - green, white, brown, 7 feet 8 feet - brown, from which you can see, not all of 4 to cond

29、uctor cable is arranged adjacent, 3 feet, feet, including 5 feet and 6 feet 4 2 to the conductor, but order is disorder actually this kind of jump line rules and will cover the module information termination b is exactly the same way, of course, we can also according to the information module termin

30、ation mode a to rearrange the core order,that is: 1 foot - green and white, 2 feet - green, 3 feet blue, orange white, 4 feet 5 feet - blue and white, 6 feet - orange, white, brown, 7 feet 8 feet - brown. the way you choose to do this is in line with the information module end-to-end, otherwise the

31、line will probably not workthis wiring method is also applied to the hub (switch) and the workstation computer, which is the range of "direct wirethe rules of the jump line of the information moduletwisted-pair cables are introduced on the jump line rules, because in the enterprise network is u

32、sually not directly take the crystal head into the cable hub or switch, but the first network and the information from the hub or switch module together buried in the wall, so it，s about the module core order problem, namely jump line rulesswitch or hub to the network module according to the city li

33、ne is the cable connection method between eia/tia 568 standard, but because it has a, b two termination mode (ibm products are usually with termination mode a, aat&t products usually use termination mode b, the primary difference between termination way in the following way t568a module and t568

34、b module with the inner fixed wires) the wiring sequence of the two types of terminals is shown in table 1:although internet cable from the hub or switch to the workstation can be without any straight line jumper, but in order to guarantee high performance network, had better adopt the mode of the s

35、ame kind of termination on the same network, including information module and network cable crystal head the corresponding sequence of each leg of the crystal head and information module is shown in the left and right image of figure 6. because in the information module wire slot has a corresponding

36、 color mark, only need to select the corresponding termination, then press the color label on the module to the corresponding core card into the corresponding slot, don，t have to remember the color sequence【description 】 in figure 7, 1, 2, 3, 4, 5, 6, 7, 8, the order is not easy, it is in the crysta

37、l head has a metal shell side up, plastic buckle down, insert the rj - 45 a head to the outside, from left to right in turn is 1, 2, 3, 4, 5, 6, 7, 8 feet the sequence of pins in the information module is clearly marked in figure 6, and there is no longer any morethe production of information module

38、knowing the jump line rules of the above information module, we can use the materials and line tools we introduced in the previous section to make information modules the specific steps are as follows:step 1: use the stripping tool to remove the outer cover of the double stranded line at the end of

39、the double stranded line 130mm as shown in the figure belowstep 2: if there is a message module to protect the device, the information module can be embedded in the protection device, as shown belowstep 3: separate the strip away 4 of twisted-pair cable conductor, but for the sake of easy to disting

40、uish, at this point it is best not to open to each con ductor line, only when the card corresponding core apart module according to the information indicated on the conductor line color sequence, two hands on a short correspondence between conductor, a little hard to lead one into the corresponding

41、slot, as shown in the figure below.step 4: good all core wires are embedded with the lineup after clamps the core further down their into the slot (can also be done in step 3 a box, the clamp pressure into a but low efficiency), to ensure good contact, as shown in the figure below. then cut off the

42、extra lines outside the moduletip normally, information module will also marked with tia 568 - a and tia 568 - b two kinds of conductor line color sequence, should according to the regulation of wiring design, and other links and equipment in the same linestep 5: the plastic dust along the gap of information module through the twisted pair, and fixed on the information module, as shown in the figure below, after the compression module can be completed through production process. then you put the information into the information socketwhen the i