Auto calibrate

When you visit a host computer for the very first time, your viewer may need to determine the optimum video and mouse settings for that particular computer.

Note: Host computers that provide digital video do not need video calibration.

The button will remind you to click it by flashing red when a new analogue computer screen is encountered that requires calibration. Performing this step is important because it can help to decrease unnecessary video information being sent across the link, thus improving overall performance.

Once this has been done, providing you use the ‘Hosts’ button to switch between host computers, the video settings for each machine will be re-used.

Note: When performing an auto calibration, ensure that the screen image is static (no moving images) and also try to remove any on-screen displays generated by KVM switches (such as host names or menus). This is because they can affect the calibration process and result in a lower overall performance level. For mouse calibration, ensure that there are no application windows located around the upper left corner of the screen. This is because as the mouse calibration takes place, the cursor may change (to match the application as it skims across the window) and this may confuse the calculation. Also ensure that the host system does not have the mouse cursor trails option enabled.

To auto calibrate the screen and/or mouse

1Use the Hosts button to select the required computer.

2Click the button to display the Calibrate options dialog:

(Note: Certain items may be greyed out.)

3Click the required action.

A progress indicator will be displayed while the necessary calculations are made.

Upon completion an information dialog will explain the results:

Re-synchronise mouse

If you find that your local mouse pointer and that of the host are not correctly synchronised, use this feature to re-align their movements. This operation is also selectable from the Controls menu.

To re-synchronise the mouse

1Use the Hosts button to select the required computer.

2Click the button and then click OK in the subsequent pop-up message. Note: If you find that this doesn’t work, you may need to perform a mouse calibration again.

Access mode - shared/private

Up to five users can be simultaneously logged-on (four remote users plus one local user) and during normal operation, all are able to see the same view of the currently selected host. If you need to perform a sensitive task that should not be viewed by other users, you can change the access mode to Private. This action blanks the viewer window for all other logged on users.

Note: For the courtesy of other users, this mode should be used sparingly. The admin user has the ability to overrule the private setting.

To change the access mode

1Click one of the arrow buttons adjacent to the Shared/Private indicator.

Power control

When configured (and where you have access rights) this option allows you to control the mains power input to the currently selected host computer.

Note: This option is generally used to power cycle remote systems that have failed to respond. Before switching a system off, ensure that all attempts have first been made to power it down through normal means.

To switch a system on or off

1Use the Hosts button to select the required computer.

2Click the Power button and then select the Switch on or Switch off option, as appropriate.

Note: Every power control action is recorded within the internal log.

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Black Box ServSwitchTM manual Auto calibrate, Re-synchronise mouse, Access mode shared/private, Power control