Software Requirements; Ethernet Switch Requirements For Calibir Gige - Dalsa CALIBIR 640 GigE User Manual

Software Requirements

Install Sapera LT 8.20 (or higher) and make certain to select the installation of GigE Vision
•
support. It may be required to install Sapera from a local directory (not a network directory).
Camera features can be controlled using a GigE Vision compliant software API, such as Teledyne
DALSA's Sapera LT SDK. The Sapera LT software suite includes the CamExpert tool that allows for
quick configuration and evaluation of all Teledyne DALSA products. As such, it is recommended that
users install the latest version of Sapera LT on the host computer for evaluation and development.
The current release version of Sapera LT is available for download here:
http://www.teledynedalsa.com/imaging/products/software/sapera/lt/download/.
Note that while CamExpert can be used for evaluating a camera, an application typically uses the
Sapera LT API to configure the camera's parameters and acquire images. Sample applications are
provided along with source code, to speed up application development. By default they are
installed under the directory:
C:\Program Files\Teledyne DALSA\Sapera\Demos\
Of particular interest is the GigE Camera Demo (available in pre-compiled form, with C++ and C#
source projects). This project provides everything needed to acquire images from the camera. It
can be easily modified to write required values to parameters (called 'features' in GenICam). For
example, in C++ it can be implemented as:
m_AcqDevice->SetFeatureValue("PixelFormat", "Mono14");

Ethernet Switch Requirements for Calibir GigE

When there is more than one device on the same network or a camera-to-PC separation greater
than 100 meters, an Ethernet switch is required. Since the Calibir GigE camera complies with the
Internet Protocol, it should work with all standard Ethernet switches. However, switches offer a
range of functions and performance grades, so care must be taken to choose the right switch for a
particular application.
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. Calibir cameras support the IEEE 802.3x pause frame flow control protocol
automatically so that images from many cameras can be transmitted through the switch to the NIC
efficiently, without data loss. As a working example, one such switch tested at Teledyne DALSA is
the NETGEAR GS716T.
Important: The maximum frame rate possible from a large number of Calibir cameras which are
simultaneously triggered will depend on the Calibir model, frame size, and network details.
Additionally using Pause Frame may change the Jumbo Frame value which maximizes data
throughput. Each imaging system should be tested for data rate limits.
16 • Calibir 640 Series Overview Calibir 640 GigE IR Camera User's Manual