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USB-1208FS-Plus-OEM User's Guide
Board components
The board components – header connectors, LED, and USB connector –are shown in Figure 2.
1
2
USB connector
Receives the supplied USB cable. When connected to a computer or USB hub, the cable provides power and
communication. No external power supply is required.
LED
The following table lists the behavior of the device LED.
LED state
Steady green
Blinks continuously
Header connectors
The header connectors provide the following connections:
Eight analog input connections (
Two analog output connections (
16 digital I/O connections (
External trigger input (
External counter input (
Bidirectional terminal for external clocking or multi-unit synchronization (
Power output (
+VO
Analog ground (
AGND
The differential and single-ended mode pinouts are shown in the following tables.
Header connector pins 21 to 40
LED
Figure 2. Board components
Indication
The device is connected to a computer or external USB hub.
Data is being transferred.
CH0 IN
to
CH7 IN
D/A OUT 0
to
PortA0
Port A7
)
TRIG_IN
)
CTR
)
) and ground (
GND
)
3
USB connector
4
Header connector pins 1 to 20
,
CH0 IN HI/LO
through
to
D/A OUT 1
)
, and
to
Port B0
Port B7
9
Functional Details
CH3 IN HI/LO
)
)
SYNC
)
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