iogear 8-port dvi kvmp switch User Manual

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GCS1108 and GCS1208 have a very unique feature which is to support multiple video out 
installations, up to 4 video out, recommended only for the DVI installations.

The multiview installation is achieved by stacking multiple GCS1108s or GCS1208s together 
with different cabling (different from the usual cascading), at the same time cascading is 
disabled. Because the unique cabling requires using port #8 on the KVM, the multiview 
installation is limited to support maximum 7 computers.

Below is an example of a dual view DVI installation because each computer has 2 DVI 
outputs. This installation requires one additional USB A-B cable, a DVI cable, and two 
pieces of either GCS1108 or GCS1208 depending on the resolution of the video outs from 
the computers. This allows you to view both video outs when you switch from computer to 
computer. The installation procedure is as follows:

1. Use the USB A-B cable to connect the USB port of the #8 CPU port of the 1st level 

KVM to the console USB port of the 2nd level KVM;

2. Use the recommended DVI KVM cable to connect  the computer’s primary DVI port, 

USB and audio ports, to the corresponding CPU port on the 1st level KVM (the drawing 
is using port #5 as an example);

3. Use the DVI cable to connect the secondary DVI port on the computer to the 

corresponding DVI port of the 2nd level KVM (Note: only DVI port is connected on the 
2nd level KVM). In the example below, the DVI cable connects #5 computer’s secondary 
DVI port, to the #5 DVI port on the 2nd level KVM;

4. Connect the first DVI monitor and the rest of the console devices such as keyboard and

mouse to the console ports of the 1st level KVM;

5. Connect the 2nd DVI monitor to the DVI console port of the 2nd level KVM;
6. Power on all KVMs then power on all computers.

If your computers have 3 or 4 DVI video outs, repeat the procedure above by adding one or 
two more KVMs.