Installation guide

Programming Crestron Controllers for a Kaleidescape System
Page 39
Power control
Whether to connect to a component via RS-232 or TCP/IP might be determined by
how the power state of the component is managed. Both connection types support
power off (ENTER_STANDBY) commands, but not all components can respond to a
power on (LEAVE_STANDBY) command over TCP/IP. Power on commands work for
all M500, 1080p, Music, and Movie Players receiving the command from an RS-232
connection.
Note: Mini players, Alto, and Cinema One (2
nd
generation) do not have an
RS-232 control port.
Power control for the Movie Player (KPLAYER-2000, KPLAYER-2500)
Early model Movie Players cannot be powered on over a TCP/IP connection. When
the Movie Player is put in standby mode, the Ethernet port shuts down and the
player cannot receive TCP/IP communications. Movie Players connected directly to
the controller via the RS-232 control port can be powered on.
With command routing, a serial connection can be made to one player and issue
commands that route to a second player. Routed commands travel over the
network to the second player. If the second player is in standby mode in this
scenario, power on commands routed through the first player will not cause the
second player to leave standby.
In some situations, this limitation is not an issue. The Movie Player remembers the
last power state and resumes that last power state after a power outage. For
example, if the Movie Player is fully powered on when the power is lost, the player
automatically returns to the fully powered on state when the power is restored.
Additionally, the Movie Player is very quiet (not completely silent because the fan
runs as needed) and the noise is usually not noticeable when the player is in a
cabinet. In many installations, the Movie Player is always fully powered on.
If the Movie Player has to be powered on from the Crestron controller, there are
two options.
Use RS-232 control without command routing (cable directly connected to
the player).
Use an infrared (IR) emitter to send the IR POWER ON command, but use
TCP/IP for all other commands.