User guide

Accessing the device
Understanding LED states
10
McAfee Encrypted USB Devices User Guide
3 When you see the following prompt, you can safely disconnect the device from the
USB port.
Caution Disconnecting the device either accidentally or on purpose, without using the
safely remove hardware operation, could corrupt the data on the device.
Understanding LED states
All McAfee Encrypted USB Devices except McAfee Standard Encrypted USB use a light emitting
diode (LED) to indicate the operational status of the device. The LED states vary depending on
the device you are using.
Table 1-1: LED states for devices
State Description of state
Solid green Open—if no authentication mechanisms are set, any user can
use the device.
Unlocked—if users exist, it indicates that the device has
authenticated a user.
Flashing green
(normal)
The flash frequency is approximately once per second and
indicates that the device is waiting for a finger due to one of
the following situations:
 The device has just been plugged in and is currently
locked.
 Software has initiated a biometric authentication or enroll
operation.
 A user has initiated a finger authentication operation for
example, by touching the device when it is in the “idle”
waiting-for-finger state—see Flashing green slow.
Flashing green (slow) Indicates that the device is waiting for a finger to authenticate
but has been idle for some time.
Flashing red once Failed fingerprint authentication attempt. The device will go
back to waiting for a finger (flashing green normal) after the
failed signal finishes.
Flashing LED
alternating between
red and green
The device is waiting for a finger to authenticate but this is
also the last chance to authenticate before biometric access is
blocked. The frequency is approximately twice per second.
Flashing red The device is either powering up or is totally blocked. When
totally blocked, no authentication methods are available to
unlock the device; this indicates that the device needs to be
recycled.
Solid red The device is locked.
Blue LED Indicates a data transfer activity for all devices.
Flashing red and blue The device no longer has valid firmware.