Black Box KV6104SA-R2, Manual

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CHAPTER 5: Operation
• {Hotkeys} + [A] causes the Duo/Quadro to begin autoscanning its computer
channels (that is, briefly displaying each channel’s video in turn). By default,
the Duo/Quadro only scans those channels that have been assigned to its scan
list (the “SCAN LIST” autoscan mode—see
Sections 4.7.9
and
4.8
). But if you
need the Duo/Quadro to scan all of its channels that have a powered-up
computer or cascaded switch connected to them (the “ACTIVE PCs” autoscan
mode), or all of its channels regardless if there’s a powered device connected
to them or not (the “ALL” autoscan mode), you can set it to do so (see
Section 4.7.9 , including the Caution notice). (In the ALL setting, when the
Duo/Quadro scans a channel that has no computer or cascaded switch
attached, or a channel whose attached computer or switch is off or just not
outputting video, the shared monitor will display a blank screen.)
While it autoscans, the Duo/Quadro will pause (dwell) at each channel for
a period of time that you can set; see Section 4.7.11 .
To end a scan, simply select any fixed channel using any enabled user
control (menu, keyboard, mouse, or Duo/Quadro pushbuttons).
Please keep in mind that in cascaded systems, it isn’t possible to perform a
single autoscan of the whole cascade unless you have autoscan mode set to
SCAN LIST. If you have the autoscan mode set to ACTIVE PCs or ALL; you
must separately scan each Duo/Quadro that has CPUs attached to it. During a
scan, when a Duo/Quadro switches to a port with a cascaded switch attached
to it, the system will display the video from whatever channel is currently
selected at the
cascaded switch.
• You can use {Hotkeys} + [0] (zero) to select nonexistent “channel zero” in
order to shut off the video output from the Duo/Quadro to the user-station
monitors. (This will cause some monitors to go into standby mode or switch off.)
It will also deactivate the keyboard and mouse, except for hotkey commands.
The Duo’s/Quadro’s front-panel COMPUTER LED will show “0”. You can re-
enable video, keyboard, and mouse by selecting an active channel using any
enabled user control (menu, keyboard, mouse, or Duo/Quadro pushbuttons).
• You can use {hotkeys} + [L] to log out of the Duo/Quadro system if password
security has been enabled (see
Section 4.3
). (If security is disabled, this
command is equivalent to {hotkeys} + [0].) This disables the keyboard and
mouse (except for login purposes) at that user station, causes the login
window to appear on that station’s monitor screen, and switches that station to
channel zero. To use the Duo/Quadro system from that user station, a user
must log in. (Keep in mind that if anyone has typed anything at that station’s
keyboard while no one is logged in—especially if the screen saver has kicked
in—users might have to press [Enter] to clear those characters so that they
won’t invalidate their password when they proceed to type it in.)