On 01/10/2016 02:48 PM, Bertho Stultiens wrote: > The sserial connection has a great potential for a loop. See attached > image for illustration. The image has a shielded connection between two > devices, which is good. However, the 0VDC connection (aka GND), which is > embedded in the shielded connection is shorted outside the cable via a > protective ground connection through the PSUs. This means that part of > the signal return may circumvent the constraints of the signal cable and > that creates an unbalanced path. Effectively, it means that the shield > is now part of the cable's impedance, and that is guaranteed to be off > by a factor.
The sserial connection is a differential line (like rs422 afaik). See for example http://focus.ti.com/lit/an/slla070d/slla070d.pdf chapter 4.5. Scenario 4.5.2 will get you into trouble in noisy environments. -- Greetings Bertho (disclaimers are disclaimed) ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
