Unshielfed twisted - pair (UTP) cables are familiar to you if you have worked with telephone cable. The typical twisted - pair cable for network use contains four pairs of wires. Each member of the pair of wires contained in the cables is twisted around the other. The twists in the wire help shield against electro-magnetic interference. The maximum distance of UTP is 100 meters.
UTP cable uses small plastic connectors designated as registered Jack 45, or most often referred to as RJ-45. RJ-45 is similar to the phone connector contains eight contacts, one for each wire in a UTP cables.
It can be easy to confirm the RJ-45 connector with the RJ-11 connector. The RJ-11 connector is a telephone connector. In an RJ-11 connector, there are four contacts; hence there are four wires found in the telephone cable. With RJ-45 and RJ-11, you will need a special crimping tool when creating the cables to make contact between the pins in the connector and the wires inside the cable.
UTP cable is easier to install than coaxial because you can pull it around cornersare easily due to its flexibility and small size. Twisted -pair cable is more susceptible to interference than coaxial, however, and should not be used in environments containing large electrical or electronic devices.
UTP cabling has different flavors, known as grades or categories. Each category of UTP cabling was designed for a specific type of communication or transfer rate. Table 1-2 summarizes the different UTP categories - most popular today being CAT 5e, which can reach transfer rates of over 100 Mbps or 1 gigabit per second (GPS).
UTP cable uses small plastic connectors designated as registered Jack 45, or most often referred to as RJ-45. RJ-45 is similar to the phone connector contains eight contacts, one for each wire in a UTP cables.
It can be easy to confirm the RJ-45 connector with the RJ-11 connector. The RJ-11 connector is a telephone connector. In an RJ-11 connector, there are four contacts; hence there are four wires found in the telephone cable. With RJ-45 and RJ-11, you will need a special crimping tool when creating the cables to make contact between the pins in the connector and the wires inside the cable.
UTP cable is easier to install than coaxial because you can pull it around cornersare easily due to its flexibility and small size. Twisted -pair cable is more susceptible to interference than coaxial, however, and should not be used in environments containing large electrical or electronic devices.
UTP cabling has different flavors, known as grades or categories. Each category of UTP cabling was designed for a specific type of communication or transfer rate. Table 1-2 summarizes the different UTP categories - most popular today being CAT 5e, which can reach transfer rates of over 100 Mbps or 1 gigabit per second (GPS).
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