Connect-Tek USB-16 Uživatelský manuál stáhnout pdf (Strana 34)

Host High Speed Electrical Test Procedure Revision 1.4

7. Using a DVM measure the DC voltage on the D+ line at J36 with respect to ground. Record in

section EL_8.

8. On the Host Test menu, select TEST_SE0_NAK from the Port Control dropdown menu. Enter

the port number and click Execute once to place the port under test into TEST_SE0_NAK test

mode.

Figure 22: Host Port TEST_SE0_NAK

9. Using a DVM measure the DC voltage on the D+ line at J36 with respect to ground (Outside

pins of J36 are ground pins). Record in section EL_9.

10. Using a DVM measure the DC voltage on the D- line at J36 with respect to ground (Outside

pins of J36 are ground pins). Record in section EL_9.

11. Repeat step 2 through 11 for the remaining ports.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 43 44

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Connect-Tek USB-16 Uživatelský manuál Strana 34