6
Sonic Guard/USB Mat
Installation and Operation
As stated, the primary function of the Sonic Guard/USB Mat is to detect two events: when you walk away from the computer
and when you return. The most important of these two events occurs when you leave your computer. During this event, the
Sonic Guard/USB Mat can send to the computer a series of keystrokes that are configured in the device. These keystrokes can
be up to 4 characters with modifiers (ALT, CTL, Shift). Click on the
Walk-Away
tab and you will see the screen below.
In the above screen shot, the unit has been configured to send the CTL-ALT, DEL+K+BacESC key sequence. This key
sequence is used to lock Windows 2K workstations.
Note:
The Sonic Guard/USB Mat units are shipped from the factory, without any keystrokes programmed into the device and
therefore will not lock your computer until you configure the keystrokes.
Configuration: Walk-Away / Walk-To
The Sonic Guard/USB Mat has programmable delays that suppress the immediate sending of the locking sequence. This
is especially useful when using the Sonic Guard/USB Mat in a private office setting where you may leave the work zone
briefly and not want the system to lock. The maximum settable delay is 255 seconds. After this delay time has elapsed, the
programmable key sequences are invoked. The Sonic Guard/USB Mat has separate delay to handle both the
In-Range
and
Out-of-Range
events. Adjust the delay by specifying the value and clicking the
Apply
key. Adjust the settings to delays that
work best for your work habits.
Important Note:
When using the Sonic Guard/USB Mat in a kiosk or standing workstation that have many users changing logins, it is best to
use the absolute shortest delay possible (i.e. zero). This will ensure the computer will lock prior to the next user walking onto
the mat.
Configuration: In-Range Detection Delay / Out-of-Range Detection Delay
Figure 2: Sonic Guard/USB Mat
Walk-Away
Configuration Screen