User Documentation

2053260000/05/2015154
Glossary
MDI-X
MDI-X stands for a crossed Ethernet connection. Transmit and receive interfaces
were swapped.
Auto MDI/MDI-X (autocrossing) enables the automatic adaptation of a port's
transmit and receive cable, i.e. the connected Ethernet cable (crossed/not
crossed) and the remote station's conguration (MDI/MDI-X) are automatically
detected and the port congured accordingly.
Media converter
Media converters convert electrical signals into optical ones and vice versa. Both
copper and bre-optic cables can thereby be used together in one network.
Multicast
Multicast is a form of transmission from one point to several participants at the
same time.
NIC (Network Interface Card)
A NIC (network adapter card) is a PCB or other hardware component which
connects the network directly to an end device.
OLE (Object Linking and Embedding)
Object Linking and Embedding (OLE) is an interface developed by Microsoft for
linking and incorporating data between different applications. External, although
only OLE-capable texts, graphics and tables can thereby be incorporated in other
OLE applications.
OSI (Open Systems Interconnection)
OSI describes internationally agreed standards with which open systems function.
OSI 7 layer model
The OSI 7 layer model is a reference model which is used to depict the data transfer
of networks/network adapters! It displays communication over seven levels.
Packet
A data packet is a dened arrangement of characters which is treated as one unit.
Patch cable
The patch cable is used in the distributor room to exibly connect between
the sub-distribution board and horizontal cabling. Patch cables may be both
bre-optic cables and copper cables. They are very exible and require a small
bending radius.
PAUSE
One single frame is sent to the available stations via full duplex mode to instruct
the stations to reduce the transmissions.