Specifications
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CHAPTER 4: Configuration
4.2.3 A
UTOSCANNING
: S
ETTING THE
S
CAN
M
ODE AND
P
AUSE
T
IME
The Multi-Head ServSwitch begins autoscanning its CPU channels (that is, briefly
displaying each channel’s video feeds in turn) when you type in the hotkey
sequence followed by the letter “A” (see Section 5.5). By default, the Switch only
scans those channels that have a powered-up computer connected to them. But if
you need the Switch to scan all of its channels, you can send it the [L][2] or [L][4]
command. (In these settings, when the Switch scans a channel that has no
computer attached, or a channel whose attached computer is off or just not
outputting video, the shared monitors will display a blank screen.) Also, if you want
the Switch to start autoscanning as soon as it powers up, instead of waiting for the
“A” command, you can send it the [L][3] or [L][4] command.
L1
Multi-Head ServSwitch only scans active ports during autoscanning (default)
L2 Multi-Head ServSwitch scans every one of its ports during autoscanning
L3 Multi-Head ServSwitch powers on in autoscan mode and scans active ports
only
L4 Multi-Head ServSwitch powers on in autoscan mode and scans all ports
CAUTION!
Many modern monitors are fitted with automatic power-saver relays
and will automatically blank their displays after a short time if the
computer they’re communicating with becomes idle. If you are
using any such monitors, you should not use the Switch’s L2 or L4
setting unless you can set the monitors’ power-saver timeout to an
interval longer than the Switch’s autoscan pause time (see below),
because if the monitors keep going in and out of power-saver mode
during autoscanning, the constant switching ON and OFF of their
relays will eventually damage the monitors.
While autoscanning, the Switch will pause at each channel to display that channel’s
video signals for the duration of the currently selected autoscan-pause time:
T1 During autoscan, the Switch pauses at each channel for 2 seconds (default)
T2 5 seconds
T3 7 seconds
T4 10 seconds
T5 15 seconds
T6 20 seconds
T7 30 seconds
T8 60 seconds
To get out of autoscan mode, simply select a fixed channel using the Switch’s front-
panel pushbutton, the keyboard hotkeys, or the mouse.