Page 12
SP Controls, Inc.
How Auto-Switching Works
How Auto-Switching Works
The SW5200 uses a similar Auto-Sense, Auto-Switching strategy employed in many of Presenta-
tion Switcher’s products.
Connecting to the Switcher
Connecting to the Switcher
The basic concept is that when someone connects her laptop or other device to the switcher,
the switcher recognizes the connection, negotitates the best resolution for the display, and dis-
plays the laptop’s image on both display ports. If the display control feature is enabled and the
display supports CEC, the display will also turn on.
Disconnecting from the Switcher
Disconnecting from the Switcher
When the user disconnects her laptop from the switcher the switcher begins a process to try to
find and display a different active source. It begins by searching for active sources beginning at
Input 1 and continuing through Input 5. Once it finds an active input signal it routes that input
to both display ports. The hunt always begins at Input 1 and looks at each subsequent input
after.
USB Type C Device Connection
USB Type C Device Connection
Many of today’s laptops and mobile devices now offer USB Type C ports. Many of these devices,
such as a Google Chromebook, support video out using this port. Simultaneously, the USB Type
C port will accept power, if available, to charge the laptop or mobile devices.
Connecting to the Switcher using USB Type C (USB-C)
Connecting to the Switcher using USB Type C (USB-C)
Connecting a laptop or mobile device using the USB-C port is no different than connecting a
BluRay player or some other device using an HDMI port. If Auto-Switching is enabled, the image
from that laptop or mobile device will appear on both display ports.
The SW5200 supports USB-C Alternative “DisplayPort” mode. Thus, natively, the USB-C
device is sending the SW5200 a DisplayPort video stream that the SW5200 converts to HDMI
for the local displays. It does this automatically.
Quick-Charging Power
Quick-Charging Power
Devices connected to the SW5200’s USB-C port automatically get charged when connected
using the fastest method available for each device. The SW5200 provides 5V, 9V, 15V, and 20V
levels depending upon the capabilities of the USB-C device connected. This negotation process
allows different devices to be charged at the optimal voltage and speed as requested by the de-
vice itself. The SW5200 is limited to 30W of power which may limit the ability from some larger
laptops to accept power from the SW5200.
