Specifications

Chassis Plans CPR-30201 KVM Technical Reference
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KVM Introduction
Overview
The KVMS-RGBA4 represents a revolutionary new direction in KVM (Keyboard, Video, Mouse) Switches. The
KVMS-RGBA4 are dual function four Port KVM Switches combined with 2 Port USB Hubs. As KVM switches,
they allow users to access four computers from a single USB keyboard, USB mouse, and monitor console. The
KVMS-RGBA4 improves on previous designs by giving the user a choice of either transferring keyboard or mouse
data to the computers via a USB connection, or with the traditional PS/2 connection.
If a USB connection is used, the KVMS-RGBA4‘s integrated two-port USB hub is available to each of the
computers. This permits each computer to access any peripherals connected to the hub on a ‘one computer at a
time’ basis.
The KVMS-RGBA4‘s asynchronous switching feature allows independent switching of the KVM, USB hub, and
audio focus. If you wish, you can give one computer the KVM console focus, another the USB hub focus, while a
third has the audio focus. You can work on a spreadsheet on one computer, for example, while you print from a
second computer at the same time, thus eliminating the need to purchase separate USB hubs or peripheral
sharers.
Recognizing the increased importance of sound, the KVMS-RGBA4 is audio enabled. A single microphone can
provide audio input to each of the computers, and you can listen to the audio output of each computer on a single
set of speakers (on a one-at-a-time basis).
Setup is fast and easy; simply plug cables into their appropriate ports. There is no software to configure, no
installation routines, and no incompatibility problems. Since the KVMS-RGBA4 intercepts keyboard input directly, it
works on multiple operating platforms (PC compatible, Mac*, Sun*, etc.).
Since a single console manages all of the computers, the KVMS-RGBA4 installation: 1) eliminates the expense of
having to purchase separate console components for each computer; 2) saves all the space those extra
components would take up; 3) saves on energy costs; and 4) eliminates the inconvenience and wasted effort
involved in constantly moving from one computer to another.
* Mac and Sun computers must use the USB cable connection.