5/24/2023 0 Comments Pterm cyber1 conenct![]() Demarcation point (Demarc) The point of division between a telecommunications service carrier's network and a building's internal network. DB-25 connector A type of connector with 25 pins that's commonly used in serial communication that conforms to the RS-232 standard. DB-9 connector A type of connector with nine pins that's commonly used in serial communication that conforms to the RS-232 standard. Conduit The pipeline used to contain and protect cabling. ![]() Zipcord cable Two strands combined side by side in conjoined jackets. This reflection allows fiber to bend around corners without impairing the light-based signal. Cladding reflects light back to the core in patterns that vary depending on the transmission mode. Cladding The glass or plastic shield around the core of a fiber-optic cable. But because of its extra layers, it is less flexible than other forms of twisted pair wiring. ![]() This twisted-pair cable can support up to a 1-GHz signal rate. Cat 7 (Category 7) A twisted pair cable that contains multiple wire pairs, each separately shielded then surrounded by another layer of shielding within the jacket. This cable is capable of a 500-MHz signaling rate and can reliably transmit data at multi-gigabit per second rates. ![]() Cat 6a (Augmented Category 6) A higher-grade version of Cat 6 wiring that further reduces attenuation and cross talk and allows for potentially exceeding traditional network segment length limits. The foil insulation provides excellent resistance to cross talk and enables this cable to support a signaling rate of 250 MHz and at least six times. Additional foil insulation covers the bundle of wire pairs, and a fire-resistant plastic sheath covers the second foil layer. Cat 6 (Category 6) A twisted pair cable that contains four wire pairs, each wrapped in foil insulation. Enhanced Cat 5 can support a signaling rate of up to 350 MHz, more than triple the capability of regular Cat 5. Cat 5e (Enhanced Category 5) A higher-grade version of Cat 5 wiring that contains high-quality copper, offers a high twist ratio, and uses advanced methods for reducing cross talk. This 3 was used for 10-Mbps Ethernet or 4-Mbps token ring networks Cat 5 (Category 5) A form of UTP that contains four wire pairs and supports up to 100-Mbps throughput and a 100-MHz signal rate. Cat 3 (Category 3) A form of UTP that contains four wire pairs and can carry up to 10 Mbps, with a possible bandwidth of 16 MHz. For example, Category 5 unshielded twisted pair cable may also be called Cat 5. Cat Abbreviation for the word category when describing a type of twisted pair cable. Cable plant The hardware that constitutes the enterprise-wide cabling system. In a digital signaling system, broadly speaking, 1 of these carries one piece of information. BOGB Blue, Orange, Green, Brown Broadcast A transmission that involves one transmitter and multiple, undefined receivers. It may have only one of two values: 0 or 1. Bit This equals a single pulse in the digital encoding system. Generally, a twisted pair cable's bend radius is equal to or greater than four times the diameter of the cable. American Wire Gauge (AWG) A standard rating that indicates the diameter of a wire, such as the conducting core of a coaxial cable Bend Radius The radius of the maximum arc into which you can loop a cable before you will cause data transmission errors.
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