IHSE USA 461 Series DVXi/ET KVM Extender - Manual (Page 9)

OVERVIEW
9
2. Overview
2.1 Introduction
A KVM Extender is used, to extend the 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 DVXi/ET Extender system, these limitations
are past. Remain your CPU in a secure rack cabinet or data centre while accessing from a
140m (CATx) up to 10.000m (Singlemode) remotely located place.
A basic KVM extension system comprises a Local unit and a Remote unit. The Local unit
connects directly to the CPU (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:
CATx Any Category 5, 5e, 6 or higher cable, solid wires type AWG24.
Fiber Singlemode or Multimode fiber cable.
Singlemode 9µ Singlemode-fiber cable
Multimode 62,5µ Multimode- or
50µ Multimode-fiber 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.