Instruction manual

UltraLink 2 DVI Installation and Operation Manual 19
Java Viewer Connection Options
The second option for connecting to the UL2-DVI is to use the built-in Java VNC Viewer. The Java Viewer is an
applet that is launched from the web browser, and lasts until the VNC session is terminated. Nothing is stored
to the computer. The Java Viewer is a lightweight version of the VNC Viewer, and is helpful when the primary
need is to view and make quick changes on the host computer.
When the Java Viewer is launched, it first displays the Connection Details window. Here, the IP address of the
UL2-DVI is entered. As with the VNC Viewer, the Encryption dropdown gives options on how encryption is
handled in the connection.
Figure 23. Java Viewer Connection window
Click the Options button to view the connection options for the Java Viewer. They are similar to the options in
the VNC Viewer, but more limited. The options are organized in four pages selected by clicking buttons –
Encoding, Inputs, Security and Misc. These options are described below.
Encoding Window
The Encoding menu of the Java Viewer Options is displayed when the Options window is first opened or when
the Encoding button is clicked. It lists compression choices to be used when data is transmitted between the
Viewer and the UL2-DVI.
Figure 24. Java Viewer Options - Encoding window
The options here are in two groups – Encoding and Color Level.
Encoding:
When the Auto select option box is checked, the UL2-DVI will automatically determine the best compression
method. This is the default. When the box is unchecked, the option boxes for the three compression types are
enabled so that one of them may be selected. There is a tradeoff between the level of compression and speed.
More compression takes longer. However, this may be advantageous over slow connections, since more
highly compressed data takes less time to be transmitted. ZRLE offers the greatest level of compression, and
is recommended for slow connections. Hextile performs less compression than ZRLE, and is recommended for
faster connections. The Raw selection uses no data compression, and is generally not recommended.
Color Level – Full, Medium, Low, Very Low:
This option is set to Medium (256 Colors) for almost all browsers, and cannot be changed.