Glossary - Siemens Simatic RF610M Operating Instructions Manual

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Glossary

Byte
A group of eight bits.
CE mark
Communauté Européenne (product mark of the European Union)
Data transmission rate
Unit of measurement for the volume of data transmitted within a unit of time, e.g. bytes/s
Electromagnetic compatibility
Electromagnetic compatibility is the ability of an electrical or electronic device to operate
satisfactorily in an electromagnetic environment without affecting or interfering with the
environment over and above certain limits.
EMC Directive
Guidelines for electromagnetic compatibility This guideline relates to any electrical or
electronic equipment, plant or system containing electric or electronic components.
EPC
Electronic Product Code.
ESD Directive
Directive for handling ESDs.
Frequency hopping
Automatic search for free channels.
In frequency hopping, data packets are transferred between the communication partners on
constantly changing carrier frequencies. This makes it possible to react to interference from
devices transmitting signals in the same frequency range. If an attempt to send a data
packet is unsuccessful, the packet can be transmitted again on a different carrier frequency.
User application for RF610M Mobile Reader
Operating Instructions, Edition 12/2005, D0175-U001-A0-7618
Glossary-1

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