Cisco SR2016 User Guide - Page 7

Fast Ethernet - A 100 Mbps technology based on the 10Base-T Ethernet CSMA/CD network access method. Hub - The device that serves as the central location for attaching wires from workstations. Can be passive, where there is no amplification of the signals; or active, where the hubs are used like repeaters to provide an extension of the cable that connects to a workstation. Mbps (Megabits per second) - One million bits per second; unit of measurement for data transmission. MDI (Medium Dependent Interface) - On a network hub or switch, a MDI port, also known as an uplink port, connects to another hub or switch using a straightthrough cable. To connect a MDI port to a computer, use a crossover cable. MDI-X (Medium Dependent Interface Crossed) - On a network hub or switch, a MDI-X port connects to a computer using a straight-through cable. To connect a MDI-X port to another hub or switch, use a crossover cable. Network - A system that transmits any combination of voice, video and/or data between users. Switch - 1. A data switch connects computing devices to host computers, allowing a large number of devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an electrical circuit. Topology - A network's topology is a logical characterization of how the devices on the network are connected and the distances between them. The most common network devices include hubs, switches, routers, and gateways. Most large networks contain several levels of interconnection, the most important of which include edge connections, backbone connections, and wide-area connections. UTP - Unshielded twisted pair is the most common kind of copper telephone wiring. Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each signal on twisted pair requires both wires. Since some telephone sets or desktop locations require multiple connections, twisted pair is sometimes installed in two or more pairs, all within a single cable. 8 Appendix B: Specifications Model Number Standards Ports SR2016 SR2024 Cabling Type LEDs SR2016 SR2024 SR2016 16-Port 10/100/1000 Gigabit Switch SR2024 24-Port 10/100/1000 Gigabit Switch IEEE 802.3, 802.3u, 802.3x, 802.3ab 16 RJ-45 10/100/1000 24 RJ-45 10/100/1000 + 2 Mini-GBIC ports Category 5e or better System, 1 through 16 System, 1 through 24 9