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A category 3 cable. Cat 3 was widely used in computer networking in the early 1990s for 10BASE-T Ethernet and, to a much lesser extent, for 100BaseVG Ethernet, Token Ring and 100BASE-T4. The original Power over Ethernet 802.3af specification supports the use of Cat 3 cable, but the later 802.3at Type 2 high-power variation does not. [8]
PAM-5 coded signaling, CAT3 copper cabling with two twisted pairs, star topology. Supports full-duplex. It is functionally equivalent to 100BASE-TX, but supports old telephone cable. However, special sophisticated digital signal processors are required to handle the encoding schemes it uses, making this option fairly expensive at the time.
In copper twisted pair wire networks, copper cable certification is achieved through a thorough series of tests in accordance with Telecommunications Industry Association (TIA) or International Organization for Standardization (ISO) standards. These tests are done using a certification-testing tool, which provide pass or fail information
Pages in category "Ethernet cables" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. C. Category 3 cable;
The Category 7 cable standard was ratified in 2002, and primarily introduced to support 10 gigabit Ethernet over 100 m of copper cabling. [2] It contains four twisted copper wire pairs, just like the earlier standards, terminated either with GG45 electrical connectors or with TERA connectors rated for transmission frequencies of up to 600 MHz. [3]
Most Ethernet cables are wired straight-through (pin 1 to pin 1, pin 2 to pin 2, and so on). In some instances, the crossover form (receive to transmit and transmit to receive) may still be required. A cable for Ethernet may be wired to either the T568A or T568B termination standard at both ends of the cable. Since these standards differ only ...
Unlike CAT5 through 7 cables, CAT3 can have as few as 2 pairs to beyond 100 pairs. 4 & 25 pairs are the most commonly available. 2 pair cable, while still around, isn't as popular as it once was. Pictures of CAT3 cable can be found on the websites of manufacturers like Commscope/Systimax, General Cable & Superior Essex.
Different types of network cables, such as coaxial cable, optical fiber cable, and twisted pair cables, are used depending on the network's topology, protocol, and size. The devices can be separated by a few meters (e.g. via Ethernet ) or nearly unlimited distances (e.g. via the interconnections of the Internet ).