26 Cirrus LT User Manual v2.3 - Chapter 3Connecting an external microphoneYou can connect your notebook to an external microphone by plugging the audiojack of the microphone to the microphone jack of your notebook.If you want to use the docking station microphone jack while on a virtualmachine, you must install a driver. You can download this driver athttp://www.ncst.com/content/downloads-0.If you have a USB headphone and microphone device, plug these into thePCoIP USB ports.External webcam supportThis section applies to only EXTERNAL USB webcams. The Cirrus LT already hassupport for an optional internal USB webcam.Using an external USB webcam with the Cirrus LT is limited to what is supportednatively by the Teradici Firmware. Teradici only supports webcams that utilizethe older USB 1.1 specification. Newer webcams that utilize higher resolutions andrequire USB 2.0 or greater are not supported by Teradici at this time. Given the datathroughput limitations available with USB 1.1 devices, the webcam experience isacceptable, but the quality is highly dependent on network bandwidth. At best, youcan expect to see a webcam display resolution of 640 x 480.Known external USB webcams found to work:• HP Deluxe Webcam KQ246AA (RMN:DC8870)• Logitech Webcam 5000 M/N: V-UAX16• Logitech C170Known external USB webcams found NOT to work:• Logitech C920• Logitech B910