As we have mentioned in other posts, all of the KVM extender models we sell use the Adderlink X2 Silver internal electronics. We package this device in various industrial enclosures, but also sell it stand-alone.
This model uses PS2 for the remote keyboard/mouse devices, VGA for video, and Serial RS-232 for the touch screen. It’s no mistake that Serial and PS2 are chosen for pointing devices: these are simple protocols that are very easy to reliably extend over very long distances (up to 300m for this model). We sell USB adapters for both PS2 and Serial for users who do not have these native connections.
There is a sea of USB KVM extenders on the market, but in extensive testing we have found that the ability to work reliably with the Elo Accutouch touch screens we integrate can vary. To understand why, we need to look at the types of USB KVM extension typically found on the market: (more…)