Cisco 3200 Use And Care Manual page 180

Power Requirements for the Cisco TelePresence 3200
Step 19 (Optional) If your installation uses an external display or a document camera with a presentation codec,
install and route the cabling.
Because you need to split the video signal between the projector and any additional video output, you
Note
must purchase at least one extra cable to connect optional external display(s). Cables for the document
camera are not included. Use the HD Video cable, part number 37-1078-01, to connect the external
display; cables for more than one additional displays are not included.
When you use the audio/video extension unit as a video splitter, connect port 1 of the "Video in"
Note
connection from the presentation codec, and port 4 of the "Video out" connection to the projector.
Cisco TelePresence System 3200
9-26
Chapter 9 Routing Power and Signal Cables
OL-14521-01