Cisco Systems 78, 828 manual GL-2

Glossary

E

EMI

ESD

Electromagnetic interference. Interference by electromagnetic signals that can cause reduced data integrity and increased error rates on transmission channels.

Electrostatic discharge. A transfer of electrostatic charge between bodies of different electrostatic potentials, such as an operator and a piece of electrical equipment. ESD occurs when electronic components are improperly handled and can damage equipment and impair electrical circuitry. ESD is more likely to occur in the presence of synthetic fibers and dry atmosphere.

F

Flash memory

G

G.SHDSL

The nonvolatile storage that can be electrically erased and reprogrammed so that data can be stored, booted, and rewritten as necessary.

Symmetrical high-data-rate digital subscriber line technology that enables high-speed transmission over the “last mile” between the service provider and the customer site.

M

MDI

MDI-X

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.

	Cisco 828 Router and SOHO 78 Router Hardware Installation Guide
GL-2	78-12837-02