Polycom Group Series Reference Guide
The Extron box enables you to select a specific video input. For peripheral
devices, please ensure that number 1 is selected. For computers or laptops,
confirm that number 4 is selected. At this point, you can use the Presentation
button on the remote to switch between the main camera and your presentation.
The Kramer video switcher enables you to select different medical
peripheral devices. Always confirm that the number 1 is selected on the Extron
box before using. Use the Presentation button on the remote to switch between
the main camera and the selected peripheral video source.