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As the need for security has grown, Black Box has made it a priority to address the concerns of customers for whom security is vital. We have been involved in... more/see it nowresearching and developing the ServSwitch Secure KVM Switches with USB, and recently obtained EAL4+ certification and Level 1 TEMPEST approval.
ServSwitch Secure KVM Switches with USB enable switching between secure and non-secure networks. The switch provides a common point of access, and because of a number of security features, data is isolated from one network to the other. The KVM switches provide control and separation of up to four PCs through just one keyboard, monitor, and mouse. Users can safely switch between four computers operating at different classification levels without worry.
View this video for more details about the ServSwitch Secure KVM Switch with USB — and now with EAL4+ certification and TEMPEST Level 1 approval. collapse
Matrix switches enable computers to mix and match the output of multiple PCs on multiple video monitors.For instance, if your operation has four PCs and you want to display the... more/see it nowvideo on one monitor to the other three monitors, a matrix video switch is what you need to handle the job. Use matrix switches for:• Trade showsSet up a wall of video to wow the senses of attendees. • Transportation schedulesProvide real-time updates of flights or deliveries on multiple screens.• Training demonstrationsControl each screens video to focus everyones attention on whats important. collapse
UTP cable is often used with video or KVM extenders to extend the reach of a video signal. It’s popular for this application because it’s lightweight, easy to handle, and... more/see it nowinexpensive. But when you transmit video over long stretches of twisted-pair cable, you sometimes run into a phenomenon called color drift or color split.
Color drift shows up as that annoying colored shadow you occasionally see around objects on a video screen. It sometimes happens with UTP cable because the pairs of wire in the cable are twisted at slightly different rates to reduce crosstalk between pairs. Because of these differences between wire pairs, video signals for different colors often travel different distances before they reach the remote receiver. When one color signal arrives behind the others because its wire is longer, you get that red, green, or blue shadow around the objects on your video screen.
UTP cable varies widely by manufacturer, so before installing video extenders, it’s difficult to determine whether or not you’re going to have a color drift problem. You’re more likely to experience color drift with higher grades (CAT5e or CAT6) of cable, on longer cable runs, and on high-resolution screens.
If you experience color drift, there are several possible solutions. You can use a shorter length of cable, switch from CAT5e or CAT6 cable to CAT5 cable, use a lower screen resolution, or use a video skew compensator.
A video skew compensator removes color drift by delaying some color signals to compensate for differences in wire pairs. collapse
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