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CM-030GE/CM-030GE-RA / CB-030GE/CB-030GE-RA
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8. Network configuration
For details of the network settings, please refer to the “Getting Started
Guide” supplied with the JAI SDK.
8.1. GigE Vision Standard Interface
The CM-030GE/CM-030GE-RA and CB-030GE/CB-030GE-RA are designed in accordance with the
GigE Vision standard. It transmits digital images over Cat5e or Cat6 Ethernet cables. All
camera functions are also controlled via the GigE Vision interface.
The camera can operate in continuous mode, providing an endless stream of images. For
capturing individual images, related to a specific event, the camera can also be trigged. For
precise triggering, it is recommended to use a hardware trigger applied to the Hirose 12-pin
connector. It is also possible to initiate a software trigger through the GigE Vision interface.
However, when using software trigger, certain latency inherent to the GigE interface must be
anticipated. This latency, that manifests itself as jitter, greatly depends on the general
conditions and traffic on the GigE connection. The frame rate described in this manual is for
the ideal case and may deteriorate depending on conditions.
When using multiple cameras (going through a switch and/or a single path) or when operating
in a system with limited transmission bandwidth the Delayed Readout Mode and Inter-Packet
Delay functions can be useful.
8.2. Equipment to configure the network system
8.2.1 PC
The PC used should have the following performance or better
1) Recommended CPU
: Core2 Duo 2.4GHz or better,
Better than Core2 Extreme
2) Recommended memory
: 2Gbyte or more
3) Video card
: Better than PCI Express Bus Ver.1.0 x16
VRAM should be better than 256MByte, DDR2
4) Other
: The resident software should not be used
8.2.2 Cables
GigEVision configures the system by using 1000BASE-T. (100BASE-T can be used with
some restriction. Refer to chapter 8.3.6). In the market, CAT5e (125MHz), CAT6
(250MHz) and CAT7 (600MHz) cables are available for 1000BASE-T. There are
crossover cables and straight through cables available. Currently, as most equipment
complies with Auto MDI/MDI-X, please use straight through cables. (Among crossover
cables, a half crossover type exists, which the Ethernet will recognize as 100BASE-T).
8.2.3 Network card (NIC)
The network card should comply with 1000BASE-T and also have the capability of
JUMBO FRAMES. When the jumbo frame size is set at a larger number, the load on the
CPU will be decreased. Additionally, as the overhead of the packet is decreased, the
transmission will have more redundancy.