User guide

51
INSTALLATIONCONFIGURATIONOPERATION
FURTHER
INFORMATION
INDEX
Advanced unit conguration
Click this button to display advanced options that do not normally require alteration.
Background Refresh Rate
Use the arrow keys to alter the background refresh rate used to correct any screen
changes missed in normal operation. The options are: Slow, Medium, Fast, Auto or
Disabled. The Auto option automatically varies the refresh rate when multiple VNC
sessions are active to provide a balance between the sessions.
Note: When a low connection speed is detected, the background refresh is automatically
disabled, regardless of the settings of this option.
Mouse Latency Allowance
This option is used during calibration to account for latency delays that may be caused as
signals pass through a device.
During calibration, the ALIF 2112T waits for 40ms after each mouse movement before
sampling the next. If a device adds a signicant delay to the ow of data, the calibration
process can be lengthened or may fail entirely. The value entered here is added to (or
subtracted from) the default 40ms sampling time.
Note: You can enter negative values (down to -40) in order to speed up the
calibration process when using fast KVM switches. Use this option with caution as it
can adversely affect the calibration process.
Mouse Rate
Denes the rate at which mouse movement data are transmitted to the system. The default
option is 20ms, which equates to 50 mouse events per second. This is used to slow down the
rate in exceptional circumstances but normally requires no adjustment.
Single Mouse Mode Mouse Switch
Select the mouse button combination to exit from single mouse mode (when active).
Use Quick Mouse Calibration
Invokes colord calibration techniques that handle the majority of mouse types.
Behaviour for admin connections when limit reached
Determines what should occur when the limit on VNC users is reached. Options are:
Replace oldest connection, Replace newest connection and Don’t replace. Only non-administrator
connections can be terminated in this way.
Enable Virtual Media
When ticked, allows the Adder Virtual Media features to be used.
Reset Unit
Performs a complete cold boot of the ALIF 2112T unit.
Force VNC Protocol 3.3
IMPORTANT: Protocol 3.3 is a legacy version that does not offer any encryption. Hashed
passwords are not supported with 3.3
Idle Timeout
Determines the period of inactivity on a global connection before the user is logged out. The
idle timeout period can be set to any time span, expressed in minutes.
Session Sleep Timeout
Determines the period of inactivity before the viewer screen will blank and a message
is displayed. When no hosts are being viewed either because of this time out or if no
viewers are active then parts of the video circuitry are powered down reducing power
consumption by up to a third.
Protocol Timeout
Sets the time period by which responses should have been received to outgoing data
packets. If the stated period is exceeded, then a connection is considered lost and
terminated.