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Power Save Mode
In power save (standby) mode (mode 1), all non-essential hardware is shut down in order to
conserve power. The default state for power save mode is Off.
If the DSC internal temperature reaches a predefined threshold at which the product could
function abnormally, the DSC enters power save mode spontaneously (mode 9). This mode
cannot be set manually.
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NOTE: Many functions in the PCS software, such as backup and restore, are not
Switching Transitions
The following switch effects are available and can be selected via SIS commands to
use when an upstream video switch occurs (see
page 59):
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CEC Control (DSC 401 A Only)
Consumer Electronics Control (CEC) is a bi-directional "party line" bus available on HDMI
connections. It allows such basic control functions as device power on and off, input
switching, volume, and mute, to be passed via the HDMI cable between a display and
source (such as a DVD/Blu-Ray player). The DSC 401 A does not pass CEC information
from the input to the output, and support CEC control only on the video output. External
control systems can encapsulate CEC commands and queries via SIS commands.
CEC can be enabled by sending CEC SIS commands (see
for a list of commands) and via PCS (see the DSC 401 and DSC 401 A Help File).
To enable power save mode, enter the Power Save ON SIS command (see the
Save Mode commands
on page 52). While the DSC is in power save mode, the
Status LED (power and signal) blinks amber slowly.
To exit power save mode, do one of the following:
Enter the Power Save OFF SIS command.
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Press any front panel button (if the front panel is locked, this method does not
work).
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Cycle power to the unit.
accessible while the unit is in power save mode.
Seamless fade — Displays a final frozen frame of the previous signal as the new signal
fades in (default).
Fade through black — Fades the current signal to black before fading in the new
signal.
Cut through black — Instantly switches the current signal to black, and then cuts to
the new signal (no fade).
Seamless Cut — Freezes the last frame of video and cuts to the new signal.
Low-latency mode — This mode removes the extra two frames of buffer required for
clean upstream switching. When this mode is enabled, the video latency of the system
is reduced by two frames of video, but clean upstream switching cannot be guaranteed.
Upstream Video Switch Effect
CEC Commands
DSC 401 and DSC 401 A User Guide • Operation
Power
on
on page 67
34
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