Rose Electronics UltraLink 2 - Manual (Page 47)

UltraLink 2 Installation and Operations Manual 43
Appendix E- VNC Viewer Options
When you are connected to the UltraLink 2 using the VNC viewer (not the java applet),
there are several options that are available to modify the way the connection is made.
Click on the “Options” tab and the below VNC Viewer Option screen will display.
When Auto select is checked,
this option will examine the
speed of your connection to the
UltraLink 2 and apply the most
suitable encoding method. This
option is suggested for the
majority of installations.
When unchecked, there are
three encoding options that can
be selected.
• ZRLE – This is a highly
compressed method that is best
suited to slow modem
connections.
• Hextile – This method offers
better performance than the
ZRLE when used over a high
speed network because there is
no need for the unit to spend
time highly compressing the
data.
• Raw – This is a primitive,
uncompressed method that is
mainly used for technical
support issues. You are
recommended not to use this
method.
Color level
This section allows you to select the most appropriate color level for the speed of the
connection to the UltraLink 2. Where the connection speed is slow or inconsistent there will
be a necessary compromise between screen response and color depth.
• Full – This mode is suitable only for fast network connections and will pass on the
maximum color depth being used by the host system.
• Medium (colors) – This mode reduces the host system output to a 256 color mode and is
more suitable for ISDN and fast modem connections.
• Low (colors) – This mode is suitable for slower modem connections and reduces the host
system output to 64 colors.
• Very low (colors) – This mode provides very rudimentary picture quality and hardly any
speed advantage over the 64 color setting. You are recommended not to use this mode.