Operating instructions

Glossary
Glossary-4
SIMATIC NET Twisted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
Filtering
A switch filters data traffic based on source and destination addresses in a data
packet. A data packet is passed on by the switch only to the port to which the
addressee is connected.
FO
See fiber-optic cable
Full duplex
Capability of a device to transmit and receive data simultaneously. In the Full
Duplex mode, collision detection is deactivated.
Ground
Ground is the conductive ground area whose potential at any point can be taken
as zero.
Grounding
Grounding means connecting a conductive part to ground via a grounding sy-
stem.
Half duplex
A device can either receive or transmit data at any one time.
HDX
–> Half duplex
Hub
Active network component with repeater functionality, synonym for star coupler
IEEE 802
Institute of Electrical and Electronics Engineers
LAN/MAN Standards Committee
IEEE 802.3
Institute of Electrical and Electronics Engineers
Ethernet working group