How to connect the crystal head, how to connect the crystal head

Arrange the wires in this order and insert the crystal head, and then press it with crimping pliers.

There are 8 wires in the amplified twisted pair cable, which are divided into 4 pairs, and each pair is a pair of twisted pairs, in order: (orange, white orange); (green, white-green); (Brown, White-Brown); (Blue, White, Blue).

White orange"Refers to an orange dot on the white line).

2. If it is used to connect the computer to the hub, please arrange the cables in the following order:

Orange; White orangeGreen; white-brown; Palm tree; white-green; Blue; White blue 3, if used for two computers directly connected, (without going through the hub) then one end is connected as follows:

Orange; White orangeGreen; white-brown; Palm tree; white-green; Blue; The other end of the white and blue lines are as follows:

Green; white-green; Orange; white-brown; Palm tree; White orangeBlue; No matter how the white and blue are wired, when the final test is completed with the RJ-45 line tester, the 4 green lights should flash in turn.

The 100BASE-T4 RJ-45 for twisted pair is specified as follows:

For sending for receiving is a two-way line.

The wire must be twisted pair twisted pair twisted pair.

When it is used to hub to the computer, it can be connected in order.

If you are using two computers to connect directly, you need to connect one side to the other. That is, the transmit at one end is connected to the reception on the other side, and the receiver is connected to the transmission on the other side.

1. To connect the crystal head of the network cable, you need to prepare a line tester, two crystal heads, a network cable, and a network cable pliers, and use the network cable pliers to peel off the network cable about 3 cm to separate the thin wires that are entangled in pairs;

2. Then arrange the sorted network cables from left to right, such as white green, green, white orange, blue, white blue, orange, white brown and brown, trim the sorted network cables with network cable pliers, take out the crystal head, make the crystal head with the copper side facing up, and insert the network cable into the crystal head;

3. Then use the network cable pliers to press the copper sheet of the crystal head, and you can use more force when pressing the copper sheet, don't be afraid of crushing;

4. Then use the same method to connect the crystal head at the other end, insert the made network cable into the line tester, and the green light of the line tester will light up in turn, which means that the network cable has passed the test and the production is successful.

The correct connection of the crystal head is as follows:

Material preparation: network cables, network cable pliers, etc.

1. Use the circle in the middle of the network pliers to peel off the outer skin of the mesh to change the shed wire, carefully turn and cut, and don't cut the eight twisted pairs inside.

2. After peeling off the outer skin of the network cable, slide the baggage, and sort the eight twisted pair wires according to (white orange, orange, white green, blue, white blue, green, white brown, brown), as shown in the figure below.

3. Use the cutter of the network cable pliers to cut the excess network cable neatly, as shown in the figure below.

4. Insert the copper piece of the crystal head upwards, as shown in the figure below, and insert the arranged network cables into it.

5. Finally, use the network cable pliers to clamp it, and the method of connecting the crystal head of the other network cable is the same.

6. Finally, use the network cable tester to detect whether it is passable, carefully observe the numbers on the two rows of display lights of the host and the auxiliary machine, whether the symmetrical display is delayed at the same time, if the symmetrical display is displayed, it means that the network cable is good, if the asymmetrical display or individual lights are not lit, it means that the network cable is disconnected or the core arrangement is wrong when making the network cable head.

Connection method of crystal head: cross-interconnection method, direct interconnection method.

1. Cross-interconnection method: 568A standard is used at one end, and 568B standard is used at one end. The practice of parallel (straight-through) lines is to use both ends of the 568A or 568B standard.

2. Direct connection interconnection method: This is the most commonly used network cable production rule, which means that it can meet the communication rate of 100M bandwidth. Although its connection is also one-to-one, the color of each foot is fixed.

Specifically: the first foot - orange and white, the second foot - orange, the third foot - green and white, the fourth foot - blue, the fifth foot - blue and white, the sixth foot - green, the 7th foot - brown and white, the 8th foot - brown, it can be seen that the 4 pairs of cores of the network cable are not all arranged next to each other, the 1st, 3rd, 5th and 7th legs include 2 pairs of cores, but the order has been out of order.

Notes:

1. When making the crystal head, make the shrapnel of the crystal head face outward, and the inlet mouth is facing down, from left to right, follow the above line sequence, fully insert the line (to see the copper core of the twisted pair at the top of the crystal head as the standard), and then clamp it with a network cable pliers, and you can do it.

2. Cross-wire connection is used between the same type of equipment, and straight-through wire connection is used between different types of equipment.

3. Routers and PCs belong to DTE-type devices, and switches and hubs belong to DCE-type devices.

4. RJ45 network connector practice generally has 568A and or blind draft 568B two standard practices, according to the same standard that is, straight line, different standards that is, cross line. No matter how the wiring is done, when the final test is completed with the RJ-45 line tester, the 8 indicators should flash in turn.

The connection of the four wires of the crystal head can be connected to the crystal head after the network cables in the order can be cut flat, and the operation can be operated by pressing with crimping pliers. The specific steps are as follows:

Preparation tools Raw materials: network cable, crimping pliers.

1. First of all, prepare the required tools, crimping pliers, crystal head, and 4-core network cable.

2. Peel off the outer skin of the network cable, straighten the network cable, and use crimping pliers to cut the head of the network cable flat.

3. Insert the four network cables into the four holes of 1236 of the crystal head, and remember the color of the network cables inserted into the holes.

4. Put the crystal head into the crimping pliers, and press the crystal head with crimping pliers.

5. The other end is operated according to the above method to ensure that the color of the network cable in the crystal head 1236 is the same as that of the crystal head.

The connection of the crystal head is as follows:

Tools: network cable, network cable pliers, crystal head, network cable tester.

1. Use the circle in the middle of the network cable pliers to peel off the outer skin of the network cable, carefully turn and cut, and do not cut the eight twisted pairs inside.

2. After peeling off the outer skin of the network cable, sort the eight twisted pair wires according to (white orange, orange, white green, blue, white blue, green, white brown, brown), as shown in the figure below.

3. Use the cutter of the network cable pliers to cut the excess network cable neatly, as shown in the figure below.

4. Insert the copper sheet of the crystal head upwards, as shown in the figure below, into the arranged net morning line.

5. Finally, use the network cable pliers to clamp it, and the other end of the network cable crystal head connection method is the same.

6. Finally, use the network cable tester to skillfully detect whether it can be passed, carefully observe the numbers on the two rows of display lights of the host and the auxiliary machine, whether it is symmetrically displayed at the same time, if the symmetrical display is displayed, it means that the network cable is good, if the asymmetrical display or individual lights are not lit, it means that the network cable is disconnected or the core arrangement is wrong when making the network cable head.

It takes a special tool, a pliers-like thing, which is available in all computer repair shops.

Pick it up in order.,Note that the thin line inside doesn't need to be cut.,Just stick the skin into it together.,I tossed a dozen crystal heads to find out.。。。

Orange White Orange Green White Blue Blue Blue White Green Brown White Brown.