Led Patterns - National Instruments NI 6221 User Manual

LED Patterns

Note USB-62xx BNC devices also have a POWER (+5 V) LED on the top panel. The
POWER (+5 V) LED indicates device power.
POWER (+5 V)
*
LED
Off
On
On
On
On
*
The POWER (+5 V) LED is available on USB-62xx BNC devices only.
© National Instruments Corporation
(USB-62xx Devices Only)
labeled ACTIVE and READY. The ACTIVE LED indicates activity over
the bus. The READY LED indicates whether or not the device is
configured. Table 3-3 shows the behavior of the LEDs.
Table 3-3. LED Patterns
ACTIVE READY
LED
Off Off
Off Off
Off On
On On
Blinking On
Chapter 3
All variants of M Series USB devices have LEDs
LED
The device is not powered.
The device is powered but not
connected to the host computer.
The device is configured, but there is
no activity over the bus.
The device is configured and there is
activity over the bus.
3-13
Connector and LED Information
USB Device State
M Series User Manual