Input And Output; Coaxpress Interface Standard - IAI SP-20000M-CXP2 User Manual

5. Input and output

5.1

CoaXPress interface standard

The SP-20000-CXP2 use CoaXPress as their interface. CoaXPress is a PLUG-AND-PLAY interface and
connects the camera and the frame grabber board by coaxial cable(s). Its maximum transfer rate is 6.25
Gbps per one coaxial cable. Additionally, CoaXPress interface supports power supplied through the
coaxial cable as well as communication signals. In the CoaXPress interface, multiple coaxial cables can
be used in order to achieve a faster transfer rate or a reduced transfer rate can be used to extend the
cable length.
In the SP-20000-CXP2, a 2 coaxial cable system is used.
Camera
The distance between camera and frame grabber board depends on the bit rate of the video and the
cable used. Among the unique features of CoaXPress is its ability to supply DC power and provide trigger
timing accuracy.
The maximum power supply per one cable is 13W with DC+24V voltage. If the system uses 2 cables, it will
be 26W. The accuracy of the trigger is ±2 ns at 3.125 Gbps.
The CoaXPress compliance labeling is assigned to the following five cable types and the maximum bit
rate and transmission length is indicated in the table below.
Compliance Labeling
CXP-1
CXP-2
CXP-3
CXP-5
CXP-6
In the SP-20000-CXP2, the maximum bit rate is 6.25 Gbps per one cable and the power supply is available
on the CXP#1 connector only.
The following link configurations with the reference to pixel format are use in SP-20000-CXP2.
Table – 1 SP-20000-CXP2 Link Confioguration
Model
SP-20000M-CXP2
SP-20000C-CXP2
For the details of the specifications, please refer to "JIIA-NTF-001-2010" published by Japan Industrial
Imaging Association, http://www.jiia.org.
SP-20000M-CXP2 / SP-20000C-CXP-2
Data/Trigger/GPIO/Control
Trigger/GPIO/Control
Power
Maximum Operational Bit Rate per coax
(Gbps) and transmission length
1.250 (up to 212 m)
2.500 (up to 185 m)
3.125 (up to 169 m)
5.000 (up to 102 m)
6.250 (up to 68 m)
Pixel format
Mono 8/10/12
Mono 8/10/12
Mono 8/10/12
Mono 8/10/12
Bayer 8/10/12/RGB
Bayer 8/10/12/RGB
Bayer 8/10/12/RGB
Bayer 8/10/12/RGB
Master Link
Extension Link
Link configuration
CXP6_X2
CXP6_X1
CXP3_X2
CXP3_X1
CXP6_X2
CXP6_X1
CXP3_X2
CXP3_X1
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Frame Grabber Board
Bit rate / cable Used
BNC cable
6.250 Gps 2
6.250 Gps 1
3.125 Gps 2
3.125 Gps 1
6.250 Gps 2
6.250 Gps 1
3.125 Gps 2
3.125 Gps 1