Agilent Technologies N5416A Manual de servicio Pagina 108

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 236
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 107
108 Notes on USB Electrical Compliance Testing
4 Hub Hi-Speed Tests
2 Connect the E2649- 66402 (E2645- 66508 if you are using the old fixture)
Host Hi- Speed Signal Quality test fixture between the downstream port
under test of the hub and a known- good hi- speed device.
a Attach the differential probe to D+/D- of TP2 on the fixture. Ensure
the + polarity on the probe lines up with the D+ on the fixture.
b Connect the test fixture's [TEST PORT] to the hub downstream port
under test, using the 4" USB cable.
c Connect the test fixture's [INIT PORT] to the known good device
using the 1 meter USB cable.
d Apply power to the hub and the known good device.
3 Check I have completed these instructions.
Vista de pagina 107
1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 235 236

Comentarios a estos manuales

Sin comentarios