Use RJ-11 connectors for instant internet connection
RJ-11 connector is usually used in phone lines or in modems for lightening fast internet connection. Apart from RJ-11 connector, there are other connectors, such as the RJ-24, RJ-14 and so on.
The RJ-11 connector has 6 connector position, but it uses only two or four, of the six of them. The wiring of this connector comes in 2 standard assortments namely the flat-satin cable, also known as the untwisted and the UTP; Unshielded Twisted Pair. It is the most recognized among the jacks, because it is mostly used in all single line handset jacks, also known as Plain Old Telephone service (POTS). The connector is mostly used in most of the offices and homes of North America and other countries. There are other similar jacks such as the RJ-25 which is used for a three line jack, RJ-61 which is used for a four line handset jack, RJ-14 for a two line handset jack and so on.
As RJ-11 connector uses two or four, out of the given six positions, 6P4C, wiring standards, it indicates that out of the six positions, only four have contacts. Contacts is translated as having both the wires connected to them. The conventional form of standard wiring are used for practical purposes to make sure that the plug fits in smoothly and perfectly. The other left over wires an be used for applications, for instance, they can be used to prevent the pulse dial telephone ringing from ringing the addition phone bells or powering an LED ring-indicator and so on.
In a powered-up state, Pins #5 (yellow- old color code/ orange- new color code) and #2 (black- old color code /white with orange stripe-new color code) may carry either AC or DC power or low voltage from a central transformer plugged in. It is usually plugged near a jack and the aforementioned jack supplies power to each of the other jacks through a circuit. In most of the times, the telephone lines directly supply a huge amount of power for most of the telephone terminals. The telephones of the olden days, such as the Trimline Phone and the old Western Empress Princess, used to contain lights, and need more energy than the usual telephone line supplies. The dial lights need 6.3 volts and the usual transformer output ~5 volts (for a larger battery life). It also depends on whether the wire is of the old or new color code convention (read left to right, while the jack faces towards the person), the positive and negative terminals are: Pin #3 which is a negative terminal ( blue-new color code/red-old color code) and Pin #4 which is a positive terminal (white with blue stripe-new color code/green-old color code). Some of the commonly used Registered Jacks are listed as below:
- RJ-45- This connector is similar to RJ-11 connector but is larger and comprises of eight conductors. It is usually used to connect telephone cables to a telephone set or to a modem. It uses an unshielded twisted pair (UTP) and is used in computer networks.
- Straight Tip (ST)- A straight tip connector is a fiber-opted connector used with multimode fiber. The connector has a 2.5 mm shaft and bayonet locking ring and allows instant connection and disconnection of 124 micron multi-mode fiber.
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