Panasonic UF-5500 Service Manual page 189

Waveform of normal operation
(1) The condition during communication establishment between PC and Main unit at Hi-Speed.
Waveform （1）-1 at Hi-Speed
V B U S
D -
D +
Waveform （1）- 3 at Hi-Speed
D -
D +
(2) The condition during communication establishment between PC and Main unit at Full Speed.
Waveform （2）- 1 at Full Speed
V B U S
D -
D +
Waveform （2）-3 at Full Speed
D -
D +
magnification
magnification
magnification
magnification
189
Waveform （1）-2 at Hi-Speed
D -
D +
Waveform （1）-4 at Hi-Speed
D -
D +
Waveform （2）-2 at Full Speed
V B U S
D -
D +
Waveform （2）-4 at Full Speed
D -
D +
UF-5500 / 4500