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USB-7202 User's Guide
Board components
The USB-7202 components are shown in Figure 2.
1
Trigger/Sync connector
2
Pins 1-20 Trigger jumper (P6)
3
Power LED (top) and Status LED (bottom)
USB connector
The USB connector provides +5 V power and communication. The voltage supplied through the USB
connector is system-dependent, and may be less than 5 V. No external power supply is required.
This connector operates in parallel with the OEM connector — do not connect to both the USB connector and
the OEM connector.
OEM connector
The OEM connector operates in parallel with the USB connector — do not connect to both the USB
connector and the OEM connector.
The OEM connector is a 0.1" box header. Pins 2, 4, 6, 8, and 10 provide a USB connection, as listed in the
connector pinout below:
Pin
Signal Name
1
N/C
3
N/C
5
N/C (do not connect anything to this pin)
7
N/C (do not connect anything to this pin)
9
N/C (do not connect anything to this pin)
Modifications are required to use the OEM connector
To use the OEM connector, create a USB connection via the OEM connector by populating two resistor
locations. The resistors you populate depends on the board revision. The board revision may be determined
from the part number label on the board that states "195729X-01L", where X is the board revision.
Revision D and later: populate R13 and R14 with 0402 size 22.1 Ω resistors.
Revision C and earlier: populate R30 and R36 with 0603 size 0 Ω resistors or provide solder bridges to close
the gaps.
4
USB connector Pins 1-20
5
Pull-up/down jumper JP1
6
OEM connector
Figure 2. Board components
OEM connector pinout
Pin
Signal Name
2
4
6
8
10
11
7
Pins 21-40
8
Trigger jumper (P7)
9
Sync jumper (P6)
VBUS
D-
D+
GND
SHIELD
Functional Details
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