RS 644 [1]
CameraLink
IEEE-1394
USB 2
Topology
Link
Link
Bus
Bus
Windows Driver
Proprietary
Proprietary
Native
Native
(Win 200, Win 98)
(Win 200, Win 98)
“Guaranteed”
~20 to 40 MByte/s
~255 MBytes/s
~32 MBytes/s[2]
~38 MBytes/s[2]
Bandwidth
Cable Length
~10 m @ 40MHz
~10 meters
4.5 meters
5 meters
~20 m @ 200MHz
Wires Needed for
22[3]
10
4
2
8 Data Bits
Parameter Port
No
1 KByte/s
~8 MBytes/s [2]
~9 MBytes/s [2]
Reference Information
14-9
Samsung Electronics
14-3 About IEEE1394
14-3-1 Comparison between IEEE-1394 and other digital interfaces
Since there are many different interfaces available, for example, RS422, RS644, and USB, vision system integ rators
are very likely to be confused when choos ing the right interface for their application. For the ideal design of a
vision syste m, it is vital to have the righ t bus/inte rface. To make things even more complex, ther e is no easy
answer such as IEEE-1394 is the best choice.
Furthermore, the new CameraLink standard, promoted by compan ies such as Puln ix, Basler AG, and many
frame grabb er companies, seems to be the stat e of the art interface. So why should IEEE-1394 be an alternative?
These questions are as complex as mostvision applicatio ns and there is no simple guideline .
Each of these interfaces offers many benefits and each of them has its individual drawbacks and restric tions. In
the table below, we try to give a brief comparison of the most popular interface systems.
[1] These specs are for a typical 8-bit camera application operating at 20 MHz or at 40 MHz.
[2] 80% of the bus bandwidth is used for image data and 20% is used for parameter data.
[3] 16 wires are used for data bit transfer and two wires each are used for the separate Line
Valid, Frame Valid, and Pixel Clock signals required with RS-644 transmission.
A careful comparison of the specifications shown in the table should be your first sele ction guide for the inter-
face. For example, for an integ rator who needs very high speed, USB 2 and IEEE-1394 are not the first choice. On
the other hand, these buses are the ones to select in cases
where multiple cameras are needed or cost is a critical issue. Also, the user needs to be aware
that the D-Cam specification curre ntly does not specifically support Line Scan cameras.
However, the specification is open and line scan suppor t could be achieved via Format 7. As
for USB 2, it is still in its infancy in machine vision and we are not aware of any kind of machine vision support.
Summary of Contents for DVD-R150
Page 10: ...Precautions 1 6 Samsung Electronics MEMO ...
Page 14: ...Product Specification 2 4 Samsung Electronics MEMO ...
Page 37: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Cabinet Assembly 6 2 ...
Page 40: ...Exploded Views and Parts List 6 4 Samsung Electronics MEMO ...
Page 52: ...7 12 Samsung Electronics Electrical Parts List MEMO ...
Page 60: ...Wiring Diagram 9 2 Samsung Electronics MEMO ...
Page 66: ...PCB Diagrams 10 6 Samsung Electronics COMPONENT SIDE CONDUCTOR SIDE 10 3 Key PCB ...
Page 67: ...PCB Diagrams Samsung Electronics 10 7 10 4 Function PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 68: ...PCB Diagrams 10 8 Samsung Electronics MEMO ...
Page 83: ...Samsung Electronics 12 1 12 Operating Instructions ...
Page 84: ...Operating Instructions 12 2 Samsung Electronics ...
Page 85: ...Operating Instructions 12 3 Samsung Electronics ...
Page 86: ...Operating Instructions 12 4 Samsung Electronics ...
Page 87: ...Operating Instructions 12 5 Samsung Electronics ...
Page 88: ...Operating Instructions 12 6 Samsung Electronics ...
Page 89: ...Operating Instructions 12 7 Samsung Electronics ...
Page 90: ...Operating Instructions 12 8 Samsung Electronics ...
Page 91: ...Operating Instructions 12 9 Samsung Electronics ...
Page 92: ...Operating Instructions 12 10 Samsung Electronics ...
Page 93: ...Operating Instructions 12 11 Samsung Electronics ...
Page 94: ...Operating Instructions 12 12 Samsung Electronics ...
Page 95: ...Operating Instructions 12 13 Samsung Electronics ...
Page 96: ...Operating Instructions 12 14 Samsung Electronics ...
Page 112: ...Circuit Operating Descriptions 13 16 Samsung Electronics MEMO ...
Page 124: ...Reference Information 14 12 Samsung Electronics MEMO ...