Instruction manual

UltraLink 2 DVI Installation and Operation Manual 31
Threshold:
The sound Threshold is the percentage of maximum audio signal strength which should be considered the
minimum valid signal. If the Threshold is 25, audio input which is less than 25% of the maximum sound level
will be considered background noise, and may not be transmitter to the VNC Viewer.
Min burst(ms):
The Min burst is the number of milliseconds the audio feed can remain below the Threshold value before the
UL2-DVI temporarily stops transmitting audio. Transmission will resume when the sound level is more than the
Threshold value.
Halt Timeout – Off, Short, Medium, Long:
The Halt Timeout option specifies what time to wait after audio transmission has been interrupted before
completely halting audio transmission. Once the Min burst value has been reached and audio transmission has
been temporarily stopped, the Halt Timeout component determines if the audio transmission is to be
completely stopped.
Restart Sound:
The Restart Sound button can be used to tell the UL2-DVI to once again start sending audio over the network,
if it had stopped doing so due one of the above timeouts or thresholds coming into play. If, however, the unit
frequently interrupts transmission of audio, it might be necessary to modify the above options to obtain the best
results.
Virtual Media
The UL2-DVI provides a helpful tool in Virtual Media to transfer files, folders or even the entire contents of a
disk drive to the host computer. Up to 2 GB of data can be transferred from the connecting computer to the
host computer using this tool.
The files, folders or drive contents being transferred are mounted on the host computer as a new read-only
drive. The required contents can then be copied or run on the host computer from the VNC Viewer. This
provides an easy way to remotely update a single host computer or a batch of computers on a switch
connected to the UL2-DVI.
The first requirement to use the Virtual Media tool is a connection between a USB port on the host computer
and the UL2-DVI USB connector labeled “VM”. Share clipboard with server and Enable File Transfer must be
enabled in the Inputs tab of the VNC Viewer Connection options. Virtual Media does not work with Apple Mac
systems at this time.
The mechanism Virtual Media uses varies depending on whether files and folders are being exported, or an
entire drive (e.g. CD, DVD or USB drive) is being made available to the host computer. These two mechanisms
are described below.
Making files or folders available to the host computer
Files and folder are made available to the host computer through the creation of a read-only virtual drive on the
host computer. The files or folder contents can then be copied to the host computer.
The mechanism again varies slightly depending on whether the files or folders have been copied to the
clipboard or whether they still have to be selected. These two methods are described below.
If the files or folders to be made available by Virtual Media have been copied to the Clipboard, click the Virtual
Media menu option in the Controls menu. This will present a Virtual Media Clipboard screen as shown below.