USB-1608G Series User's Guide
Functional Details
12
External components
USB-1608G Series devices have the following external components (see Figure 3):
USB connector
LEDs
Screw terminals
Figure 3. USB-1608G Series device external components
USB connector
The USB connector pr5 V power and communication. No external power supply is required.
LEDs
USB-1608G Series devices have two LEDs –
Status
and
Activity
.
The
Status
LED turns on when the device is detected and installed on the computer.
The
Activity
LED blinks when data is transferred, and is off otherwise.
Figure 3 shows the location of each LED.
Screw terminals
The USB-1608G Series device screw terminals provide the following connections:
16 SE (
CH0
to
CH15
) or eight DIFF (
CH0H/CH0L
to
CH7H/CH7L
) analog input connections
Eight digital I/O connections (
DIO0
to
DIO7
)
Two analog output connections (
AOUT0
,
AOUT1
) – USB-1608GX-2AO
only
One external clock input (
AICKI
) and one external clock output (
AICKO
) for analog inputs
One external clock input (
AOCKI
) and one external clock output (
AOCKO
) for analog outputs
– USB-1608GX-2AO
only
One digital trigger input (
TRIG
)
Two counter inputs (
CTR0
,
CTR1
)
One timer output (
TMR
)
One power output (
+5V
)
13 analog ground (
AGND
) and five digital ground (
GND
) connections
SE pinout locations are shown in Figure 4. Diff pinout locations are shown in Figure 5.
