Tektronix TDSUSBF Instructions Manual page 14

TDSUSBF Test Fixture
Key
Test name/connector
Switch function
A A Dongle connector
A A Receptacle
B
B Receptacle
Switches Connectors
Loads
1
S1
J1
3
S2 J2
S81 J81 5
S71
J71 7
Inrush current test state:
Discharge, Off, On
High speed Host Signal Quality
A receptacle on the back of the board
A receptacle on the back of the board
A receptacle on the back of the board
High speed through connection
for packet parameter, suspend,
resume and reset
S6 - - Init/Test switch
Jumper for power selection (USB Vbus or user supplied 5V)
6
Droop Test Load
J5
J1
J2
J81
J71
J70
J7
J12
J16
J19
J28
J34
Init LED
Figure 1: Fixture connections and switch functions
J4
J3
J150
J61
J72
J10
J14
J20
J26
J32
J37
J310
J91
J35 J92
DC Power in Jack
TDSUSBF USB 2.0 Compliance Test Fixture Instructions
Switches Connectors
Loads
S4 2
J4
S3 4
J3
S51
6
J150
8
S61
J61
LS/FS Downstream Signal
Quality (Device)
Inrush Current,LS/FS
Upstream Signal Quality
Inrush Current probe
test loop
Adjacent Trigger and Droop
High Speed Host TDR
High Speed Device TDR
High Speed Receiver
Sensitivity
Signal Quality - - HS Upstream
High speed Device Signal
Quality connection