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Glossary
Autocrossing
Function that allows the automatic crossing over of the send and receive lines on twisted-
pair interfaces.
Autonegotiation
Configuration protocol in Fast Ethernet
Devices on the network negotiate a transmission mode that each device is capable of using
(100 Mbps or 10 Mbps; Full Duplex or Half Duplex) prior to the actual data transfer.
Autosensing
Capability of a device to detect the transmission speed (10 Mbps or 100 Mbps) automatically
and to send/receive at this rate.
Broadcast
A broadcast is like "calling all stations": Broadcast packets are received by all nodes
configured to receive broadcasts.
Client
A client is a device or, in general terms, an object that requests a service from a → server.
Configuration data
Parameters that determine the modes and functions of a CP. They are set and downloaded
using the STEP 7 or NCM S7 configuration tool.
CP
Communications processor
Module for communications tasks
C-PLUG
The C-PLUG is an exchangeable medium for storage of the configuration and project
engineering data of a basic device. This means that the configuration data remains available
if the basic device is replaced.
CP 343-1 ERPC
Manual, 03/2010, C79000-G8976-C239-02
83
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