Glossary - Siemens SIMATIC HMI Industrial Thin Client ITC1200 Operating Instructions Manual

Hmi device
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Glossary

Browser
A browser is a computer program that is used to start Web sites in the Internet.
Client-server system
A client/server system is a network structure in which the resources are offered by a central
server that the workstations (clients) can access.
Degree of protection
The degree of protection specifies the suitability of electronic equipment for a variety of
ambient conditions – and the protection of persons against potential danger when using this
equipment.
The degree of protection specified by IP differs from the protection class. But both involve
protection against touching dangerous electric voltage. The degree of protection also
classifies the protection of equipment against dirt and moisture.
Domain Name System (DNS)
The DNS is a service in the Internet that converts domain names into IP addresses.
Dynamic Host Configuration Protocol (DHCP)
DHCP enables dynamic assignment of an IP address and additional configuration
parameters to computers in a network, via an appropriate server.
Electromagnetic Compatibility (EMC)
Electromagnetic compatibility (EMC) refers to a usually desirable state, in which technical
equipment does not disturb one another with unwanted electrical or electromagnetic effects.
Electromagnetic compatibility deals with technical and regulatory questions of undesired,
mutual influence in electrical engineering.
EMC
Electromagnetic compatibility is the ability of electrical equipment to function properly in its
electromagnetic environment without influencing this environment.
Industrial Thin Client ITC1200, ITC1500, ITC1900, ITC2200
Operating Instructions, 04/2013, A5E03474888-02
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