National Instruments NI USB-9201, User Manual And Specifications, Page: 10 / 21

NI USB-9201/9221 User Guide and Specifications 10 ni.com
Wiring the NI USB-9201/9221 Device
The NI USB-9201/9221 provides connections for eight analog input
channels.
Caution A high voltage screw terminal backshell must be installed when using hazardous
voltages (>42.4 V
pk
, 60 VDC).
Note Table 2 illustrates the accessories available from
ni.com
for use with the
NI USB-9201/9221.
Table 1. LED State/Device Status
LED State Device Status
Not lit Device not connected or in suspend.
On, not blinking Device connected, but no module installed.
Single-blink Operating normally.
Double-blink Connected to USB Full-Speed port. Device
performance might be affected. Refer to the
Specifications section for more information.
Quadruple-blink Device error. Refer to
ni.com/support
.
Table 2. Accessories
Device Accessory Accessory Description
USB-9201/9221 with Screw Terminal NI 9932 10-terminal, detachable, high
voltage, screw terminal backshell
1
USB-9201/9221 with 25-pin D-SUB NI 9934 25-pin D-SUB connector
1
For more information about installing the backshell, refer to the Assembling the High Voltage Screw Terminal Backshell
section.