18 • Linea Lite GigE Series Overview Linea Lite GigE Series Camera
Ethernet Switch Requirements
If there are more than one device on the same network or a camera-to-PC separation greater than
100 meters an Ethernet switch is required. The Linea Lite GigE camera complies with the Internet
Protocol, it should work with all standard Ethernet switches. However, care must be taken to
choose the right switch for a particular application.
When using VLAN groups, the Linea Lite GigE and controlling computer must be in the same group
(Refer to Teledyne DALSA Network Imaging Package for Sapera LT Optimization Guide, available
through the Start menu under Teledyne DALSA).
IEEE 802.3x Pause Frame Flow Control
Ethernet Switches supporting Full-duplex IEEE 802.3x Pause Frame Flow Control must be used in
situations where multiple cameras may be triggered simultaneously. In such a case the NIC
maximum bandwidth would be exceeded if there was no mechanism to temporarily hold back data
from cameras. Linea Lite GigE cameras support the IEEE 802.3x Pause Frame Flow Control protocol
automatically so images from many cameras can be reliably transmitted through the switch to the
NIC efficiently.
Important: The maximum virtual frame rate possible from multiple cameras which
are simultaneously triggered will depend on the camera model, frame size and
network configuration. Additionally, using Pause Frame may change the Jumbo
Frame value which maximizes data throughput. Each imaging system should be
tested for data rate maximums.
Ethernet to Fiber-Optic Interface Requirements
In cases of camera-to-PC separations of more than 100 meters a fiber-optic media converter can
be used instead of an Ethernet switch. The FlexPoint GX from Omnitron Systems (
www.omnitron-
systems.com) converts GigE to fiber transmission and vice versa. It supports multimode (MM) fiber
over distances of up to 220 m (720 ft.) and single-mode (SM) fiber up to 65 km (40 mi.) with SC,
MT-RJ, or LC connector types.
Important: The inclusion of GigE to fiber-optic converters does not guarantee they
will meet specific application requirements or performance. The user must evaluate
any supplemental Ethernet equipment.
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