Black Box ACX4000, Manual

Page: 19 / 119

OVERVIEW
19
2.7 How to Use This Guide
This guide describes the installation and configuration of the ACX4000 Switch. Although the
connection and operation of the system is relatively straightforward, you should consider the
following before getting started:
Connection & Compatibility
The individual ACX4000 Switch components consist of:
•
ACX4000 Switch for CATx: includes the device and power supply.
•
ACX4000- KVM/ Media Local Unit: includes the device, power supply and all the cable
required to connect the ACX4000- KVM/ Media Local Unit to your CPU/ Signal source.
•
ACX4000- KVM/ Media Remote Unit: includes the device and power supply
Please see also Package Contents (Page 20).
For information about connection and installation, see page 22.
DDC Information
Normally it is not necessary to make any adjustments to the ACX4000- KVM/ Media device.
However, in some circumstances, it may be necessary to redefine the source of DDC
information for the CPU. By default, the ACX4000- KVM/ Media uses its own internal DDC
table. If this setting does not satisfy your requirements, the DDC table can either be switched
to the locally attached screen or can be downloaded from the remotely located screen and
stored in the internal DDC table.
To modify the DDC-Setup, see
Setup at the Local Unit (Page 46).
Selecting the moment of switching to the next frame
The transmission of screen data is not synchronous to the screen changes of the graphic card.
Normally, the transmission is terminated during the display of a frame on the screen. If the
device switches to the new frame during the displaying period of the old frame (somewhere
on the screen), it is possible that you will see horizontal screen breaks at the moment of
switching (default). On the other hand, if the device idles until the actual frame is displayed
completely (until VSYNC) then the number of frames per second transmitted reduces.
To modify the switching behaviour, see Loading the DDC Information from the Remote
Monitor into the internal DDC Table (Page 47).
Selection of Color reduction for transfer acceleration
You can select, whether always 24 Bit colors (=full color depth) are transmitted or whether
the compression algorithm automatically switches between 16 and 24 Bit colors to accelerate
the data transfer (default). Normally the difference between 24 Bit and 16 Bit is not
recognizable but under some special circumstances e.g. in photo processing installations there
might be disturbing color abberations. However, the automatic color switching enhances the
count of frames, transmitted per second, fixed 24 Bit color depth gives smooth color grades
under all circumstances. Please select to you choice the better mode.
To modify the color depth, see Selection of Color depth (page 47 ).