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OVERVIEW
9
2. Overview
2.1 Introduction
A Fibre KVM Extender is mainly used, to extend the maximum distance between a CPU
and his Keyboard / Monitor / Mouse considerably. In addition they are irrecoverable in
installations in electromagnetic hazardous environments (EMI). Normal Keyboard-/
Monitor-/ Mouse extender cables (and Extender using traditional cables) cannot go so far
and EMI interferences may reduce the maximum distance and/or reliability. Using a
DVI-D Fibre Extender system, these limitations are past. Remain your CPU in a secure
rack cabinet or data center while accessing from a 10km remotely located place.
A basic KVM extension system comprises a Local unit (transmitter) and a Remote unit
(receiver). The Local unit connects directly to the computer (or a KVM switch system) using
the supplied cable(s). The user console (keyboard, mouse and monitor) attaches to the
Remote unit. The Remote and Local units communicate video and data information along the
interconnecting cable. Local units offer dual access, allowing the connection of a second user
console close to the computer.
2.2 Glossary
The following terms are used in this guide:
Fibre
Singlemode or Multimode fibre cable.
Singlemode
9µ Singlemode-fibre cable
Mulitmode
62,5µ Multimode- or
50µ Multimode-fibre cable
KVM
Keyboard, Video and Mouse.
Console
Keyboard, Mouse and Monitor
Dual Access
A system allowing connection of Local and Remote user consoles.
Singlehead
An extender system that supports one monitor + Keyboard/Mouse
Dualhead
An extender system that supports two monitors + Keyboard/Mouse
DVI
Digital Video standard, installed by Digital Display Working Group
(www.ddwg.org) R, G, B, CLOCK in a data stream with up to
3x 1,6 Gbit/sec. Signals are TMDS Level.
PSU
The desktop power supply connected to the Local/Remote unit.
HID
Human Interface Devices are units, which are used for human access
to the CPU. They are a USB-device class of its own (e.g. Memory
Devices etc.). Besides of keyboard and mouse also touchscreen, light
pen, fingerprint sensor, graphic tablets etc. are HID devices