How to Create a cable connector

 

RJ-45 plug is a plastic connector that can only be inserted along a fixed direction and automatically prevent shedding, commonly known as "crystal head", terminology for RJ-45 connectors (RJ-45 is a specification for network interfaces, there is also a similar RJ-11 interface, is our usual "telephone interface", used to connect the telephone line ). It is called the "crystal head" because its appearance is crystal clear. This RJ-45 plug must be installed at both ends of the twisted pair to Facilitate network communication through the RJ-45 interface of the NIC, Hub, or switch.

Limit 11The interfaces are similar to RJ45 interfaces, but there are only four pins (eight for RJ45 ). In computer systems, ipv11 is mainly used to connect to the modem for debugging. In daily application, RJ-11 is common in telephone line...

Production tool:

Barge clamp: used for connecting crystal head (required)

With regard to the crystal head practice, because the color labels and Arrangement Methods of twisted pair wires are subject to unified international standards and strict regulations, we only need to remember the standards when doing so. What is commonly used now is Tia/eia568b.

Standards of crystal head practices:

568a standard: white green, green, white orange, blue, white blue, orange, white brown, brown
568b standard: White orange, orange, white green, blue, white blue, green, white brown, brown

 

 

 

 

 

 

General principles:

Similar (the two ends of the connection line are the same device)
Heterogeneous (two ends of the connection line are different devices) parallel (parallel line)

Note: When the crystal head is made, let the shrapnel in the crystal head face outward, line-in-Mouth Face down, from left to right, follow the line sequence above, fully Insert the wire (to see the copper heart of the twisted pair on the top of the crystal head), and then use the wire clamp to clamp it.

There are two types of Ethernet twisted pair cables: one is a widely used direct connection line and the other is a cross line used in special circumstances. If it is a PC-connected switch or other network interfaces, or if the status of other connected devices is not equal, use a direct connection line. If the two connected devices are equivalent, such as both PCs and laptops, the crossover line is required. The difference between the two is that the line order is inconsistent, and the interface is the same.

The crossover Line adopts the 568a standard and 568b standard for one end.

Parallel lines adopt the same standards (both 568a and 568b standards)

 

 

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