Configuring Other Network Settings - FLIR GRASSHOPPER 3 Series Technical Reference

use some bandwidth. Therefore, when calculating your bandwidth requirements, you should not attempt to use
the full maximum of 125 MB.
To calculate your bandwidth requirements:
Determine your required resolution, frame rate, and pixel format (bytes per pixel)
For example, for an image that is VGA, 82 FPS, Mono8:
Once you have calculated your required bandwidth, you can allocate an amount to each camera by adjusting the
packet size and packet delay. Allocating a specific amount to each camera helps to avoid dropped packets due to
a data burst. You would do this in a set up with multiple cameras, or in a situation where the system bandwidth
might be limited or shared due to hardware architecture.
Here are some packet size/packet delay combinations you can use with any image size, pixel format
combination. Frame rate will be limited depending on total bandwidth.
Bandwidth Requirements for Multiple Cameras
Multiple cameras can be set up in two ways: 1) Each camera is connected directly to a single Ethernet port; or, 2)
multiple cameras are connected to a single port through an Ethernet switch.
If using the first method, each camera has the full bandwidth allocation available to it. If using the second method,
the combination of all cameras on a switch cannot exceed the available bandwidth.
Related Knowledge Base Articles
Title
Setting Up Multiple GigE Cameras
2.4.4

Configuring Other Network Settings

The following GigE Vision bootstrap registers can be used for configuring the camera on the network. All registers
are implemented according to the GigE Vision standard. A listing of all network- related bootstrap registers
supported on the camera is provided in
2/10/2017
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Solutions Inc. All rights reserved.
Note: If the packet size and packet delay combination exceeds
the available bandwidth, frames are dropped.
(Height x Width x Frame Rate x Bytes per Pixel)/1000000 = Bandwidth in MB
640 (H) x 480 (W) x 82 (FPS) x 1 (BPP) = ~25 MB
To allocate 25 MB
~20% of bandwidth
Packet Size = 9000
Packet Delay = 5900
Packet Size = 1400
Packet Delay = 900
Technical Application Note 10351
GigE Vision Bootstrap
Grasshopper
2 Grasshopper3 PGE Installation
To allocate 55 MB
~45% of bandwidth
Packet Size = 9000
Packet Delay = 1800
Packet Size = 1400
Packet Delay = 255
Article
Registers.
®
3 PGE Technical Reference
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