Cisco Systems 805 manual Link, Straight-through Ethernet cable

Terms and Acronyms

equivalent hub button can affect the setting of this router button, refer to the “Connecting an Ethernet Device” section in Chapter 2, “Installing the Cisco 805 Router.”

link

Indicates that a connection between the router and an Ethernet device exists.

MDI

Media-dependent interface. A port on a Ethernet network device used to connect the device to the Ethernet network, usually through a hub or switch.

MDI-X

Media-dependent interface, crossover. A port on an Ethernet hub, such as the Cisco 1528 Micro Hub 10/100, that connects the Ethernet network devices through the MDI port to create a network.

NIC

Network interface card. A board that provides network communication capabilities to and from a computer system. Also called an adapter.

SELV

Safety extra-low voltage. A secondary circuit that under normal conditions has a voltage less than 42.4V peak or 42 Vdc. Under a single fault condition, this circuit should not exceed these values for longer than 0.2 seconds and should not exceed 71V peak or 120 Vdc.

straight-through Ethernet cable

A cable that wires a pin to its equivalent pin. This cable typically connects a router to a hub. A straight-through Ethernet cable is the most common cable used.

TNV

Telecommunications network voltage. A secondary circuit that under normal operating conditions, carriers telecommunication signals. Telecommunications signals are a steady state, varying amplitude, or intermittent voltage or current intended for use on a telecommunications network. A telecommunications network is considered a metallically terminated circuit intended to carry telecommunication signals for voice,

xCisco 805 Router Hardware Installation Guide