Connect-Tek USB-16 Manuale Utente Scaricare il pdf (Pagina 23)

Host High Speed Electrical Test Procedure Revision 1.4

13. On the Host Test menu click Execute once. The oscilloscope capture should appear as in the

following figure. Pause the oscilloscope with the run/stop button.

14. The results consist of the inter-packet gap between the second and the third packets shown on

the oscilloscope. The second (of higher amplitude) is a device packet and the third is the host

response. The requirement is it must be between 8 bits and 192 bits. (EL_22).

Figure 14: Inter-packet Gap – Host Respond to Device

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Connect-Tek USB-16 Manuale Utente Pagina 23