Network cable Creation Method

Network cable Creation Method

How to create a network cable? Creating a network cable is an essential step for building a LAN. Next we will introduce how to create a network cable. Main Line (Standard 568b): the two ends of the line Order is the same, the line order is: White orange, orange, white green, blue, white blue, green, white brown, brown. Reverse line (568a): one end is the line sequence of the positive line, and the other end is: white green, green, white orange, blue, white blue, orange, white brown, brown. PC-PC: reverse line PC-HUB: Main Line Hub-hub common port: Anti-line Hub-hub-level connection: Anti-line Hub-hub common port-level connection port: Main Line Hub-Switch: Anti-line Hub (cascade Interface)-Switch: Main Line Switch-Switch: Anti-line SWITCH-ROUTER: Main Line ROUTER-ROUTER: reverse line 1. For the line Order, see: There are eight wires in the Ampersand, which are divided into four pairs. Each pair is a pair of twisted pair wires, which are: (orange, white/orange); (Green, white/green); (Brown, white/brown); (blue, white/blue) ("White/orange" indicates an orange color point on the white line) 2. If the computer is used to connect to the Hub, sort the cables in the following order: Orange; white/orange; green; white/brown; white/green; blue; white/blue 3. If two computers are directly connected (without going through the hub), one end is connected as follows: Orange; white/orange; green; white/brown; white/green; blue; white/blue The other end is lined up as follows: Green; white/green; orange; white/brown; white/orange; blue; white/blue No matter how the wiring, after the completion of the test with a RJ-45 wire meter, the four green lights should flash in turn. 100base-t4 RJ-45 on the twisted pair of the provisions of the following: 1 and 2 are used for sending, 3 and 6 are used for receiving, and 4, 5, 7, and 8 are bidirectional lines. Line 1 and line 2 must be twisted, line 3 and line 6, line 4 and line 5, and line 7 and line 8. It is used to connect the hub to a computer in order. If two computers are directly connected, Connect 3 and 6 on one side to 3 and 6 on the other side. That is, the sender of one end is received by the other side and received by the other side.

100baset is connected to a twisted pair. The 100 Mbit/s EIA/TIA 568b is used as the standard specification. The procedure is as follows: Step 1: Use the oblique port to cut down the required twisted pair length, at least 0.6 meters, up to 100 meters. Then, remove the outer skin of the twisted pair (which can be used to cut anything) with 2-3 cm pairs. Some twisted pair cable contains a soft nylon rope, If you strip out the twisted pair outer skin, feel exposed part is too short, and is not conducive to the production of RJ-45 connector, can hold the twisted pair outer skin, hold the Nylon Wire and peel it off to the bottom of the outer skin to obtain a longer exposed line. (1) 　　　　　　　　 Figure 1 Figure 2 Step 2: The twisted pair cable after wire stripping is completed, as shown in figure 2. Step 3: Perform the cabling operation. Place the orange pairs in the exposed twisted pair wires to the front of the wire, and the brown pairs to the front of the wire. The green pairs to the left and the blue pairs to the right, as shown in figure 3. Upper: Orange left: Green lower: Brown right: Blue Figure 3 Step 4: place the green and blue pairs in the middle, while the orange and brown lines remain unchanged, that is, the opposite, as shown in figure 4. Figure 4 Left one: Orange left two: Green left three: Blue left four: Brown Step 5: carefully strip each pair of cables. Because we follow the EIA/TIA 568b standard to create connectors, the cables have a certain color order (as shown in Figure 5 ). Figure 5 Note that the Green Line should span the blue line. The easiest thing to make mistakes here is to put the white green line and the green line together, which will cause crosstalk and reduce transmission efficiency. From the left: White orange/white green/blue/white blue/green/White brown/brown common error method is to put the green line at the position of 4th feet (6 ). Figure 6 It is correct to place the Green Line in the position of 6th feet, because in the 100baset network, the 3rd and 6th feet are the same, so the same pair of residual needs to be used. (See Standard EIA/TIA 568b) from left: White orange/white green/white blue/White brown/brown Step 6: Cut the exposed twisted pair with scissors or diagonal pliers with a length of about 14mm left. The reason for leaving this length is to comply with EIA/TIA standards, you can refer to the introduction to standards for making RJ-45 connectors and twisted pair wires. Finally, put each wire of the twisted pair into the pin of the RJ-45 connector in sequence, the first pin should be placed in the white orange line, the rest and so on, such as (Figure 7) Figure 7 Step 7: Determine the twisted pair of each line has been correctly placed after, you can use RJ-45 crimping clamp crimping RJ-45 joint, such as the right picture on the market there is a kind of RJ-45 joint protective sleeve, this prevents poor contact when the connector is pulled. When using this protective cover, you need to plug the rubber sleeve into the twisted pair cable before crimping the RJ-45 connector, such as (figure 8 ). Figure 8 Step 8: Repeat steps 2 through 7 before creating the RJ-45 connector for the other end. Because the workstation is directly connected to the hub, the pin connection of the RJ-45 connector at the other end is exactly the same. After the completion of the connection lines at both ends of the RJ-45 connector both pin and color are complete ~ The connection method is applicable to the connection between the ADSL modem and the computer Nic. The direct connection network cable is used for the connection between the ADSL modem and the hub. The method is the same as above, but there is no combination of white green, blue, white blue, and green. It exactly corresponds to the following one by one: 1 2 3 4 5 6 7 8 | 1 2 3 4 5 6 7 8