This section provides overview, applications, and principles of modular jacks. Also, please take a look at the list of 32 modular jack manufacturers and their company rankings.
Modular jack is one-touch disconnects and are often used for interface connectors. Also called modular jack or modular plugs, they are connected to modular cables. It can be used for telephone lines, ADSL communication, and LAN lines.
The female type is often referred to as a modular jack, but the male type is sometimes called a modular jack. The male type has a claw-shaped part on the top, and when connected to the female type, the claw catches and prevents it from being pulled out. To pull it out, push the tabs toward you and pull it out.
Modular jacks are used to connect lines for interfaces. There are square exposed types and types that are embedded as panels in the wall to suit the application. Since the size, shape, and performance vary depending on the standard, they may not connect well if the standard is for a different application.
For example, for home use, 6-pole, 2-core connectors are often used for telephone lines, while 8-pole, 8-core connectors used for LAN cables are slightly larger and signal compatibility is not guaranteed.
Modular jacks are made of flame-retardant plastic. They have signal wires inside, and if you look closely, you can see that the wires are color-coded for the number of poles in each standard.
The male plug is hooked onto the female plug by a claw on the top of the plug, which clicks into place when connected and cannot be pulled out immediately. To pull it out, push the claw down and pull it out.
There are several standards for modular jacks. The 6-pole, 2-prong connector with 6 terminals is called RJ-11 and is used for telephone and ADSL applications, while the 8-pole, 8-prong connector with 8 terminals is called RJ-45 and is mainly used for LAN applications. 8-pole, 8-prong wiring for LAN applications generally follows T568A or T568B of the American National Standards Institute.
Some connectors allow multiple phone lines or LAN connections with a single modular jacks. Special tools are required to replace the modular jacks.
If the cable does not come out of the connector properly, calmly insert it once in the back and pull it out by pushing hard on the claws at the top. If this does not work, try pushing a flat-blade screwdriver or similar tool into the connector gap and pull it out by pushing on the claws.
*Including some distributors, etc.
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