Video - Lantronix SecureLinx Spider User Manual

PS/2 Keyboard Model
<PS/2 keyboard
model pull-down
menu>
Key Release Timeout
Key release timeout
Timeout after
USB Mouse Type
<USB mouse type
pull-down menu>
Mouse Speed
Mouse speed
3. Click Apply to save settings. Click Reset to Def to restore values to system defaults.

Video

The Spider works by capturing and digitizing the analog video coming from the attached
computer. This analog video may have more or less low-level electrical noise present,
depending on the nature of the video card or embedded video controller. When viewed
on a monitor, this noise (if random) is invisible as the display is being redrawn 60 to 100
times a second. Inside the Spider, however, the algorithm sees that noise as something
changing on the screen, so that requires sending off an update to the client system. This
can result in a constant stream of data even when the image on the target computer's
screen is not moving. In order to avoid this, at KVM Settings
Video Settings the Spider has a selection for Noise Filter. The larger filter openings will
filter out more of the noise, at the cost of potentially missing small incremental changes
and seeing some compression artifacts (blocky-ness.) Filter settings of Normal or Large
will work for most applications. Be sure to try the Remote Console Auto Adjust Video
button a few times before deciding that a constant stream of data represents electrical
noise requiring a larger filter setting.
To modify video settings:
1. Select KVM Settings Video from the Main Menu. The Miscellaneous Video
Setting window displays.
SecureLinx Spider User Guide
When operating in PS/2 interface mode, keycodes from several
layouts may be emulated.
Generic 101-key PC for the traditional layout
Generic 109-key PC for keyboard with added Windows keys
Generic 106-key PC for Japanese layout
Apple Macintosh for Mac layout
Network delays may sometimes result in duplicated keystrokes.
Enable Key Release Timeout to fix this problem.
Enter time, in msec.
Different operating systems running on the target system require
different mouse emulation protocols. One selection is available for
newer versions of Windows and Mac OS/X, and another for Other
Operating Systems (e.g.Linux).
Auto mouse speed determines the speed and acceleration settings
of the target system. It is the recommended setting for most
applications.
Fixed scaling translates a one pixel motion on the client system to
a selectable number of pixels moved on the target system. As the 1
to n mapping is linear, this will only work when there is no
compression acceleration or other special effects turned on at the
target system.
8: KVM Settings
Video Miscellaneous
38