Cisco 806 Installation Manual page 51

L
link LNK
LRE
M
MDI
MDI-X
modem
S
SELV
straight-through
Ethernet cable
78-10432-01
A light-emitting diode (LED) that indicates that a physical connection between
the router and an Ethernet device exists.
Long-reach Ethernet. A technology that encapsulates Ethernet packets for
robust, high-frequency transmission over telephone wiring, and extends the
distance reach from 100 meters for traditional Ethernet over copper to up to
5,000 feet (1,524 meters).
Media-dependent interface. A port on an Ethernet network device used to
connect the device to the Ethernet network, usually through a hub or switch.
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.
Modulator-demodulator. A device that converts analog and digital signals. At the
source, a modem converts digital signals to a form suitable for transmission over
analog communication facilities. At the destination, analog signals are converted
back to their digital form.
Safety extra-low voltage. A secondary circuit that under normal conditions has
a voltage less than 42.4V peak or 60 VDC.
A cable that wires a pin to its equivalent pin. This cable connects two dissimilar
devices such as a data terminal equipment (DTE) and a data communications
equipment (DCE) device. A straight-through Ethernet cable is the most common
cable used.
Cisco 806 Router Hardware Installation Guide
Glossary
GL-3