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ASK THE EXPERTS

Cables / Cable Assemblies / Connectors Questions

Question Asked:

What is the difference between FPD Link, GMSL and Camera Link (HS)?

3 Answers

  • = Company Profile
  • = Answered Questions

Keith Russell - President
Euresys
keith [dot] russell [at] euresys.com
(949) 743-0612

Hi Tommy, I am not aware of any cameras or frame grabbers with FPD Link or GMSL. Camera Link is a industry standard and there are plenty of cameras and frame grabbers available with this interface, however Camera Link HS is limited to Dalsa. You also may want to take a look at CoaXPress, a new standard that is gaining traction rather quickly. CoaXpress supports video, camera control, and power over a single coaxial cable with cable lengths of 40 meters for CXP-6 and 100 meters for CXP-3. An example of the performance that can be achieved is 12megapixels at 180+FPS. FPD Link https://en.wikipedia.org/wiki/FPD-Link Keith

Mike Miethig - R & D Manager
Teledyne DALSA
mike [dot] miethig [at] teledynedalsa.com
(519) 886-6000, x2130

Hi Tommy: FPD-Link is the technology used in Camera Link. This technology sends 4 7:1 serialized data streams + a parallel clock using LVDS levels. Cable skew and data patterns influence distance achieved. Camera Link HS is packet based. The M protocol runs 8b/10b encoding at 3.125 Gbps/lane and achieves a cable bandwidth of 2.1 GByte/s. The X protocol runs at 10.3125 Gbps with scrambling and Forward Error Correction and achieves a data throughput of 1.2 Gbyte/sec per SFP+ connector.

Michael Yampolsky - CEO
KAYA Instruments Ltd.
michael [at] kayainstruments [dot] com
972722723505

The CLHS is not only limited to Dalsa, yet there are just few vendors supporting this standard. CoaXPress is definitely more popular today, yet more complex for implementation comparing to CLHS.

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