© 2009 IDS Imaging Development Systems GmbH
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5 GigE Basics
5
GigE Basics
5.1
General
Gigabit Ethernet was developed on the basis of the Fast Ethernet (100 Mbps) standard. In June
1999, the IEEE 802.3ab 1000 Mbps standard was defined by the
IEEE
(
I
nstitute of
E
lectrical and
E
lectronics
E
ngineers). Using at least Cat 5e copper cables, transmission rates of 1 Gbps can be
obtained. This makes Gigabit Ethernet 10 times faster than Fast Ethernet. The main advantages of
Gigabit Ethernet include:
·
Higher bandwidth, allowing for better network performance and the elimination of bottlenecks
·
Full-duplex capability virtually doubles the effective bandwidth
·
Low purchasing and operating costs through the use of common hardware
·
Full compatibility with the large number of installed Ethernet and Fast Ethernet nodes
·
Fast transfer of large amounts of data over the network
Figure 15: Structure of a Cat 5e cab le
For connecting Gigabit Ethernet cables, RJ45 connectors are used. The following illustrations show
schematic views of an RJ45 socket (with cable configuration) and of an RJ45 plug.
Figure 16: RJ45 socket
(EU type acc. to
EIA/TIA-568B)
Figure 17: RJ45
socket (US type acc. to
EIA/TIA-568A)
Figure 18:
RJ45 plug
The
GigE uEye
camera automatically recognizes whether an Ethernet cable with crossed
wiring or straight wiring is connected. The camera adjusts accordingly.