Dalsa Genie Nano-5G Series, User Manual, Page: 196 / 204

194 • Contents Nano-5G Series GigE Vision Camera
Acquisition Error without Timeout Messages
Streaming video problems range from total loss of image data to occasional loss of random video
data packets. The following section describes conditions identified by Teledyne DALSA engineering
while working with Nano-5G in various computers and setups. See the Teledyne DALSA Network
Imaging manual for information on network optimizations.
Grab has Random Bad Data or Noise
The problem is seen as random noise and missing sections of video data from the acquisition. All
configuration parameters seem correct and the Ethernet cable is secure. The following image
shows an example of this type of bad acquisition while testing a Genie installation with CamExpert.
• This problem has been seen with network adapters that do not support jumbo frames but still
report a false maximum packet frame size.
• Test for a good acquisition by reducing the camera packet size used. Set the value to the
default value of 1500 to verify acquisition before trying a higher value.
• Other marginal NIC boards or ports can cause problems with packet transfers. Try alternative
NIC adapters.
Review other reasons for such acquisition errors as described in the Teledyne DALSA Network
Imaging Module for Sapera LT manual.