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The Avocent® HMX High Performance KVM Extender System Installer/User Guide
NOTE:
Log in to the receiver System Configuration utility before completing the following procedures. All
steps begin on the main System Configuration page.
Configuring receiver video
If your system is using dual-head extenders, you can verify that the monitor connected to the
receiver can support and properly display the chosen video resolution.
To verify that the connected monitor supports a chosen resolution:
On the System Configuration page, select the Enable Video Compatibility Check checkbox to
prompt a verification using the EDID reported by the computer graphics card. An error message is
displayed and no connection is made if the monitor cannot support the video resolution.
By default, receivers are configured for Fast Switching, which means that the extender video
retains the same frame rate at either 50 or 60 Hz, depending on which resolution was displayed
first. If you prefer to adjust this setting, the Match Frame Rate option follows the source frame rate
(50 Hz) and causes any variation to automatically return to that rate, even if the video resolution
does not change. For example, if you have a receiver switching between 1920 x 1080 at 60 Hz and
1920 x 1080 at 50 Hz, enabling the Match Frame Rate option changes the frame rate back to 50 Hz
every time you switch. For your specific configuration, 60 Hz may be the frame rate that you prefer.
By enabling the Force Video Refresh Rate to 60 Hz checkbox, the receiver frame rate is held at 60
Hz regardless of the video input frame rate.
To select your preferred video frame rate:
Select
System Configuration
on the left side of the page, then select the Fast Switching (50 or 60
Hz frame rate) or the Match Frame Rate (50 Hz) radio button.
-or-
Enable the Force Video Refresh Rate to 60 Hz checkbox, which prevents the previous video
switching options from being altered.
Configuring receiver USB and security settings
The local receiver System Configuration utility allows you to configure specific USB and security
settings within the HMX extender system.
To configure receiver USB settings:
1. Select
USB Setting
on the left side of the page.
2. Select each of the following checkboxes if you wish to enable the setting:
a. Select to allow HIDs to restrict supported USB devices to keyboards and mice only, and
disables all other types of USB devices.
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