Crystal Image Technologies KVM-IP8 Instrukcja Użytkownika Pobierz pdf (Strona 7)

2007 ATEN Technology, Inc. www.aten-usa.com

Why Network Administrators Should Explore the “V” in K-V-M Switches

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An LCD (or plasma) ﬂ at panel display has a ﬁ xed number of pixels – each pixel is a liquid crystal ele-

ment controlled by its own transistor. Unlike the CRT with a continuously variable electron beam, a

LCD offers an array of horizontal and vertical pixels that work at a single bitmap resolution – this be-

comes the “native” or “optimum” screen resolution for the particular LCD monitor.

For optimal resolution on a LCD monitor, set all KVM-controlled computers to the same video output

resolution, and make sure the monitor has that resolution as its native (optimum) speciﬁ ed resolution.

Video Settings for IP-KVM

When computer video is conveyed over a TCP/IP network, resolution must be treated differently as

much changes with handling video locally over analog (or even digital) wired systems. With direct wir-

ing between the computer(s) and the monitor, via a KVM switch, the resolution and refresh rate gener-

ated by the computer’s video card is delivered to the monitor – KVM switches do not change these

values but simply pass them through. On the ﬂ ip side, this process does not occur when the video is

sent over a network via the local LAN or a WAN or Internet connection.

All IP KVM switches, as well as IP Access Units (converters for use with conventional KVM switches)

process the source video, typically converting it from analog Red-Green- Blue and Sync signals on

separate pairs of wires to a single digitized signal that goes out in the form of numerical packets on

just one pair of wires. While the signal leaves the IP

The difference between CRT and LCD monitors makes it imperative to

set all computers connected to a KVM with an LCD monitor to the same

video resolution, one that matches the optimum LCD screen resolution.

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Crystal Image Technologies KVM-IP8 Instrukcja Użytkownika Strona 7