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CM-140GE / -RA/-UV / CB-140GE / -RA
8. Functions and Operations
8.1. GigE Vision Standard Interface
The CM-140GE/CM-140GE-RA and CB-140GE/CB-140GE-RA are designed in accordance with the
GigE Vision standard. In 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. Recommended Network Configurations
Although the CM-140GE/CM-140GE-RA and CB-140GE/CB-140GE-RA conform to Gigabit Ethernet
(IEEE 802.3) not all combinations of network interface cards (NICs) and Switches/Routers are
suitable for use with the GigE Vision compliant camera.
JAI will endeavor to continuously verify these combinations, in order to give users the widest
choice of GigE components for their system design.
8.2.1 Verified Network Interface Cards (NICs)
At the time of publishing this document these combinations have been verified:
NIC manufacturer
Model
Intel
PRO/1000MT
(PWLA8490MT)
Intel
PRO/1000GT
(PWLA8391GT)
Intel
PRO/1000PT
(EXPI9300PT)
Intel
Gigabit CT
Desktop adaptor
(EXPI9301CT)
Intel
PRO/1000PT Quad
port
(EXPI9404PT)
Intel
PRO/1000PT Dual
port
(EXPI9402PT)
Minimum PC requirements are as follows in order to fulfill the above conditions:
Intel Core 2 Duo , 2.4GHz
PCI Bus
PCI-X Bus
(33MHz)
(33MHz)
- 22 -
PCI-Express Bus
(100MHz)
(33MHz)
( x1 )
( x1 )
( x4 )
( x4 )
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