Chapter 2
Installation and Configuration
©
National Instruments Corporation
2-3
Note
The DAQPad-6507/6508 devices use 100 k
Ω
resistors for polarity selection.
These signals are controlled by a switch on the back of your DAQPad.
For more information, see the
section in Chapter 3,
.
Table 2-1. LED Patterns for DAQPad-6507/6508 States
LED
DAQPad-6507/6508
State
Description
Off
Off or in the low power,
suspend mode
Your DAQPad device is turned
off or in the low power, suspend
mode.
2 blinks
Addressed state
This pattern is displayed if the
host computer detects your
DAQPad device but cannot
configure it because there are
no system resources available.
If your DAQPad remains in this
state, check your software
installation.
3 blinks
Power supply failure
This pattern is displayed if you
try to draw too much power
from the USB. You must attach
the external power supply.
4 blinks
General error state
If this pattern is displayed,
contact National Instruments.
On
Configured state
Your DAQPad device is
configured.
