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The ServSwitch Brand Fiber KVM Extender II provides digital transmission of keyboard, video, mouse, and audio information on two fibers up to 400 meters (1312.3 ft. ) on multimode cable. Unlike most KVM extenders, which use analog signals, the ServSwitch Brand Fiber KVM Extender II uses digital signals to maintain top image quality.
The extender works by digitizing video output from a local CPU, then sends it across fiber optic cable to a remote unit, which converts it back to the original analog signal. Plus, because the extender uses fiber optic cable, transmissions are immune from electrical interference from sources such as nearby machinery or fluorescent lights.
The digital video signal is transmitted serially over a single fiber at rates up to 1.5 Gbps. The extender uses the second fiber of the fiber pair to send remote mouse and keyboard information back to the local CPU. Because the extender only needs these two fibers for full operation compared to the five fibers some extenders need, you save money by running less cable. The extender supports many of the most common VGA-compatible video standards (DOS mode, VGA, XGA, SVGA, or SXGA) at resolutions up to 1280 x 1024 or output refresh rates up to 75 Hz. The extender also supports all common PS/2 style mice and pointing devices including two-button mice, three-button mice, wheel mice such as Microsoft IntelliMouse, trackballs, and more.
In addition to the keyboard, video, and mouse information, the local unit can also digitize audio signals from a local CPU or other audio device and encode it into the digital information sent to the remote unit on the video fiber. The sound quality doesn't approach high fidelity (it's converted to monaural if it's stereo), but is more than adequate for system sounds such as alerts. You can also connect an optional local user station (keyboard, monitor, and mouse only) to the local unit. The local unit passes video through to the local monitor and switches the keyboard and mouse.