ATEN Technology KH2516A, KH2508A User Manual

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KVM Switch

KH2508A / KH2516A

User Manual

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KH2508A / KH2516A User Manual

FCC Information

This is an FCC Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

RoHS

This product is RoHS compliant.

SJ/T 11364-2006

The following contains information that relates to China.

KH2508A / KH2516A User Manual

User Information

Online Registration

Be sure to register your product at our online support center:

International http://support.aten.com

North America http://www.aten-usa.com/product_registration

Telephone Support

For telephone support, call this number:

International 886-2-8692-6959

China 86-10-5255-0110

Japan 81-3-5615-5811

Korea 82-2-467-6789

North America 1-888-999-ATEN ext 4988

United Kingdom 44-8-4481-58923

User Notice

All information, documentation, and specifications contained in this manual are subject to change without prior notification by the manufacturer. The manufacturer makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties as to merchantability or fitness for any particular purpose. Any of the manufacturer's software described in this manual is sold or licensed as is. Should the programs prove defective following their purchase, the buyer (and not the manufacturer, its distributor, or its dealer), assumes the entire cost of all necessary servicing, repair and any incidental or consequential damages resulting from any defect in the software.

The manufacturer of this system is not responsible for any radio and/or TV interference caused by unauthorized modifications to this device. It is the responsibility of the user to correct such interference.

The manufacturer is not responsible for any damage incurred in the operation of this system if the correct operational voltage setting was not selected prior to operation. PLEASE VERIFY THAT THE VOLTAGE SETTING IS CORRECT BEFORE USE.

iii

KH2508A / KH2516A User Manual

Manual Part No. PAPE-0292-AX3G

Manual Date: 2011-01-21

All other brand names and trademarks are the registered property of their respective owners.

Package Contents

The KH2508A / KH2516A package consists of:

1 KH2508

A or KH2516A Cat 5 High-Density KVM Switch

1 Firmware Upgrade Cable

1Power Cord

1 Grounding Wire

1 Rack Mount Kit

1 Foot Pad Set (4 pcs.)

1 User Manual*

1 Quick Start Guide

Check to make sure that all of the components are present and in good order. If anything is missing, or was damaged in shipping, contact your dealer.

Read this manual thoroughly and follow the installation and operation procedures carefully to prevent any damage to the switch or to any other devices on the KH2508

A / KH2516A installation.

* Features may have been added to the KH2508A / KH2516A since this manual

was printed. Please visit our web site to download the most up-to-date version of the manual.

KH2508A / KH2516A User Manual

Contents

FCC Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

RoHS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

SJ/T 11364-2006. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Online Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Telephone Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

User Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Package Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Product Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Chapter 1.

Introduction

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Features and Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Consoles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Computers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

KVM Adapter Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

KH2508

KH2516A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

KH2508

KH2516A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 2.

Hardware Setup

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Before you Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Stacking and Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Stacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Single Station Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Daisy Chaining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 3.

Basic Operation

Port Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

OSD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Hotkey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

KH2508A / KH2516A User Manual

Hot Plugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Hot Plugging Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Hot Plugging KVM Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Hot Plugging Console Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Powering Off and Restarting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Port ID Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Chapter 4.

OSD Operation

OSD Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

OSD Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

OSD Main Screen Headings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

OSD Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

F1: GOTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

F2: LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

F3: SET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

F4: ADM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

F5: SKP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

F6: BRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

F7: SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

F8: LOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Chapter 5.

Hotkey Operation

Hotkey Port Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Invoking Hotkey Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Number Lock and Minus Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Control and F12 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Hotkey Mode Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Exiting Hotkey Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Selecting the Active Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Auto Scan Mode Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Setting the Scan Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Invoking Auto Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Exiting Auto Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Skip Mode Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Entering Skip Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Exiting Skip Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Computer Keyboard / Mouse Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Setting the Hotkey Beeper ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Setting the Hotkey key combination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Setting the OSD Hotkey combination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Setting the Port Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Restore the Default Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Hotkey Summary Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

KH2508A / KH2516A User Manual

Chapter 6.

Keyboard Emulation

Mac Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Sun Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Chapter 7.

The Firmware Upgrade Utility

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Performing the Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Starting the Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Upgrade Succeeded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Upgrade Failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Firmware Upgrade Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Main Board and OSD Firmware Upgrade Recovery . . . . . . . . . . . 56

Adapter Cable Firmware Upgrade Recovery. . . . . . . . . . . . . . . . . 57

Appendix

Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

International. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Connection Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

KH2508A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

KH2516A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

OSD Factory Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Administrator Login Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

vii

KH2508A / KH2516A User Manual

About This Manual

This User Manual is provided to help you get the most from your KH2508A / KH2516 operation. An overview of the information found in the manual is provided below.

A system. It covers all aspects of installation, configuration and

Chapter 1, Introduction, introduces you to the KH2508

A / KH2516A

system. Its purpose, features and benefits are presented, and its front and back panel components are described.

Chapter 2, Hardware Setup, describes how to set up your installation. The necessary steps – from a basic single stage hookup to a complete daisy-chained operation are provided.

Chapter 3, Basic Operation, explains the fundamental concepts involved in operating the KH2508

A / KH2516A.

Chapter 4, OSD Operation, provides a complete description of the KH2508

A / KH2516A's OSD (On Screen Display), and how to work with it.

Chapter 5, Hotkey Operation, details all of the concepts and procedures involved in the keyboard hotkey operation of your KH2508

A / KH2516A

installation.

Chapter 6, Keyboard Emulation, provides tables that list the PC to Mac and PC to Sun keyboard emulation mappings.

Chapter 7, The Firmware Upgrade Utility, explains how to upgrade the KH2508

A / KH2516A's firmware with the latest available versions.

An Appendix, provides specifications and other technical information regarding the KH2508

A / KH2516A.

viii

Conventions

This manual uses the following conventions:

Monospaced Indicates text that you should key in.

KH2508A / KH2516A User Manual

[ ] Indicates keys you should press. For example, [Enter]

1. Numbered lists represent procedures with sequential steps.

♦ Bullet lists provide information, but do not involve sequential

→ Indicates selecting the option (on a menu or dialog box, for

means to press the Enter key. If keys need to be chorded, they appear together in the same bracket with a plus sign between them: [Ctrl+Alt].

steps.

example), that comes next. For example, Start → Run means to open the Start menu, and then select Run.

Indicates critical information.

Product Information

For information about all ALTUSEN products and how they can help you connect without limits, visit ALTUSEN on the Web or contact an ALTUSEN Authorized Reseller. Visit ALTUSEN on the Web for a list of locations and telephone numbers:

International http://www.aten.com

North America http://www.aten-usa.com

KH2508A / KH2516A User Manual

This Page Intentionally Left Blank

Chapter 1

Introduction

Overview

A KH2508A/KH2516A KVM switch is a control unit that allows IT administrators to access and control multiple computers from two PS/2 or USB KVM (keyboard, monitor, and mouse) consoles. Operators working at up to two consoles can independently and simultaneously take control of up to 8 (KH2508

By daisy chaining up to 31 additional switches, as many as 512 computers can be controlled from the original KVM console. An auto-sensing function recognizes the position of each station on the chain, eliminating the need to manually set the position, and a seven-segment front panel LED displays each Station's position for easy identification.

Compact, high-density, RJ-45 connectors and CAT 5e/6 cable make for a compact, efficient, wiring configuration, while the use of PS/2 and USB KVM Adapter Cables to link to the computers, permits any combination of PCs, Macs, Sun computers, and serial devices to coexist on the installation.

A), or 16 (KH2516A) computers.

Setting up the KH2508 their appropriate ports is all that is entailed. Because the KH2508 intercepts keyboard and mouse input directly, there is no software to configure and no complex installation routines.

Access to any computer on the installation is easily accomplished – either by pressing front panel port selection pushbuttons; entering hotkey combinations from the keyboard; or by means of a powerful OSD (On Screen Display) menu system. A convenient Auto Scan function also permits automatic scanning and one-by-one monitoring of the activities of selected computers.

Your KH2508 upgrades. You can download firmware update files from our website, and use the Firmware Upgrade function to quickly and conveniently install them.

There is no better way to save time and money than with a KH2508 KH2516 computers, you: (1) eliminate the expense of purchasing separate keyboards, monitors, and mice; (2) save space; (3) save on energy costs; and (4) eliminate the inconvenience and wasted effort involved in constantly having to move from one computer to another.

A / KH2516A investment is protected through firmware

A installation. By allowing one or two consoles to manage up to 512

A / KH2516A is fast and easy – plugging cables into

A / KH2516A

A /

KH2508A / KH2516A User Manual

Features and Benefits

The features and benefits provided by a KH2508A / KH2516A deployment are described in the following table:

Features Benefits

Two Consoles Control Two KVM consoles independently and simultaneously control

Scalability By daisy chaining up to 31 additional KH2508

Easy Installation Setting up the KH2508

Easy Operation Three port selection methods: Manual (via front panel

Hardware Independent Cross-Platform Support

RJ-45 Connectors and Cat 5e/6 Cabling

KVM Adapter Cables to Connect to Servers and Devices

Two-Level Password Security

Upgradeable Firmware Stay current with the latest functionality improvements and

Effortless Upgrades Simultaneous firmware upgrades to all daisy-chained KVM

up to 8 or 16 directly connected computers.

switches, as many as 512 computers can be controlled from

A / KH2516A

the original KVM console.

plugging cables into their appropriate ports is all that is

A / KH2516A is fast and easy –

entailed. Because there is no software to configure, incompatibility and configuration issues are non-existent.

pushbuttons), Hotkey, and multi-language OSD (On Screen Display).

Multi-language keyboard support includes US English, UK English, French, German, Swiss German, Hungarian, Italian, Japanese, Korean, Russian, Spanish, Swedish and Traditional Chinese.

The KH2508

A / KH2516A supports Windows 2000/XP/Vista/7,

Linux, Unix, Novell, FreeBSD, Sun, and Mac.

This space-saving innovation means that the KH2508 KH2516

A can be conveniently installed in a 1U system rack,

A /

and the installation can take advantage of the internal network wiring built into most modern commercial buildings.

Reduces cable clutter for a neat and tidy data center environment

For convenience and flexibility that allows mixing the PS/2, USB and serial interfaces, the KH2508

A / KH2516A's design

utilizes KVM adapter cables that serve as intermediaries between the KVM switch and the connected devices.

KVM adapter cables are available in PS/2, USB, and Serial interfaces to support a wide variety of data center servers and devices.

Supports one administrator and ten user profiles. Strong password protection prevents unauthorized accessing to the installation – keeping your valuable data secure.

updates by downloading firmware upgrade files from our website and installing them with the built-in firmware upgrade utility.

switches and dongles through the daisy-chain cable.

Chapter 1. Introduction

Features Benefits

Auto Scanning and Broadcast Mode

Auto scanning provides hands-free monitoring of selected devices at variable rates. Broadcast Mode sends commands from the console to all computers – allowing you to perform operations (such as software installation, upgrades, shutdowns, etc.), on them simultaneously

Superior Video Quality Supports the video resolutions up to 1600x1200@60hz for up

to 40 meters, and 1280x1024@75hz for up to 50 meters with the new ATEN KVM Cable Adapter KA7000 series.

Multiple User Accounts Supports up to 10 user and 1 administrator accounts

Port Operation Modes Diversified port operation modes (Occupy, Exclusive, and

Share) enable flexible computer and access rights management between the two consoles.

Hot Pluggable Ability to add or remove components without having to power

off the KVM switch.

Adapter Cables with ID The KH2508

A / KH2516A KVM series supports automatic ID

recognition of the new ATEN KVM Cable Adapter KA7000 series (See KVM Adapter Cables on page 5). Using the new adapter cables with ID means it is not required to change cable configuration settings when moving cables from port to port.

Device ID and attributes are stored in the adapter cables allowing you to hot-swap port connections without having to reconfigure attributes.

KH2508A / KH2516A User Manual

Requirements

Consoles

 A VGA, SVGA, or multisync monitor capable of the highest resolution

that you will be using on any computer in the installation

 A PS/2 or USB mouse  A PS/2 or USB keyboard

Computers

The following equipment must be installed on the computers that connect to the KH2508

 A VGA, SVGA or multisync port  A Type A USB port and USB host controller (for USB KVM adapter cable

A or KH2516A KVM ports:

connection, see following section)

- or -

6-pin Mini-DIN keyboard and mouse ports (for PS/2 KVM adapter cable connection, see following section)

Chapter 1. Introduction

KVM Adapter Cables

 Cat 5e/6 cable is required to connect the KH2508A / KH2516A to one of the

KVM adapter cables.

 The following KVM adapter cables are required for use with the KH2508A /

KH2516

Function Module

Connect to devices with PS/2 ports KA7920 / KA7520 / KA7120

Connect to devices with USB ports KA7970 / KA7570 / KA7170

Connect to Sun Legacy systems (with 13W3 port) KA9130 / KA7130

Connect to Sun USB systems KA9170 / KA7170

Connect to serial based devices KA9140

KA9520 / KA9120

KA9570 / KA9170

Note: 1. KVM adapter cables are referred to as I/O Modules in some dialog boxes.

2. The following cable models support the Adapter Cable ID function: KA7920 / KA7970 / KA7520 / KA7570 / KA7120 / KA7170 / KA7130

Operating Systems

Supported operating systems are shown in the table, below:

OS Versi on

Windows

Linux

UNIX IBM AIX4.3, 5L (V5.2,V5.3), V6 (V6.1)

Novell Netware 5.0 and higher

Sun Solaris 8, 9, 10

Mac 9.0, 9.1, 10.1, 10.2, 10.3, 10.4 , 10.5

DOS

Does not support USB.

Kernels below 2.6 do not support USB 2.0

RedHat 9.0, Fedora and higher, RHEL AS 4, RHEL 5

SuSE 10 and higher, OpenSUSE 10.2; SLES 10 SP1

Debian 3.1, 4.0

Ubuntu 7.04, 7.10

FreeBSD 5.5, 6.1, 6.2

NT1, 2000, XP, 2003 Server, 2008 Server, Vista

6.2 and higher

KH2508A / KH2516A User Manual

543 6

1&2

Components

Front View

KH2508A

1&2

KH2516A

543 6

Chapter 1. Introduction

No. Component Description

1 Port Selection

Pushbuttons

 Press a pushbutton to give the KVM focus to the computer

attached to its corresponding port.

 Simultaneously pressing Pushbuttons 1 and 2 for 3 seconds

performs a keyboard and mouse reset.

 Simultaneously pressing Pushbuttons 7 and 8 of the

KH2508

A or Buttons 15 and 16 of the KH2516A starts Auto

Scan mode (see F7: SCAN, page 36, for auto scan details).

2 Port LEDs The Port LEDs are built into the Port Selection Pushbuttons.

The left ones are the On Line LEDs; the right ones are the Selected Port LEDs:

 An On Line LED lights GREEN to indicate that the computer

attached to its corresponding port is up and running. A flashing LED indicates that the Port is being used for cascading to another switch.

 A Selected LED lights ORANGE to indicate that the computer

attached to its corresponding port is the one that has the KVM focus. The LED is steady under normal conditions, but flashes when its port is accessed under Auto Scan mode (see F7: SCAN, page 36, for auto scan details)..

3 Reset Switch Pressing this switch in performs a system reset.

Note: The switch is recessed and must be pushed with a small object, such as the end of a paper clip, or a ballpoint pen.

4 Console

Selection Pushbuttons

5 Firmware

Upgrade Recovery Switch

6 Firmware

Upgrade Port

7 Power LED Lights to indicate that the KH2508A / KH2516A is powered and

8 Station ID

LED

Press a pushbutton to select a console for manual port selection. When you press one of the manual port selection pushbuttons the selected console will be connected to that port. The LED next to the pushbutton indicates which console is selected.

During normal operation and while performing a firmware upgrade, this switch should be in the NORMAL position. If a firmware upgrade operation does not complete successfully, this switch is used to perform a firmware upgrade recovery. See Firmware Upgrade Recovery, page 56 for details.

The Firmware Upgrade Cable that transfers the firmware upgrade data from the administrator's computer to the KH2508 / KH2516

A (see page 51), plugs into this RJ-11 connector.

ready to operate.

The KH2508

A / KH2516A's Station ID is displayed here. If this is

a single station installation (see page 14), or the first station on a daisy chained installation (see page 17), the KH2508 KH2516

A has a station ID of 01.

On a daisy chained installation, the KH2508

A / KH2516A auto-

A /

senses its position and displays the station ID that corresponds to its place in the chain. (see Port ID Numbering, page 21, for details).

KH2508A / KH2516A User Manual

745 6

Rear View

KH2508A

KH2516A

Chapter 1. Introduction

No. Component Description

1 Power Socket The power cord to the AC source plugs in here.

2 Power Switch This is a standard rocker switch that powers the KH2508

KH2516

A on and off.

3 Daisy Chain

Ports

When daisy chaining units (see Daisy Chaining, page 17), the daisy chain cables plug in here. The port on the left is the Chain In port; the port on the right is the Chain Out port.

4 Grounding

The wire used to ground the unit connects here.

Terminal

5Console 1

Ports

The KH2508

A / KH2516A supports two independent

consoles. If this is a single station installation, or if this is the first station of a daisy chained installation, the keyboard, monitor, and mouse that make up Local Console 1 plug into

6Console 2

Ports

section no. 5 and Local Console 2 plugs into section no. 6. You can use any combination of PS/2 and USB keyboards and mice for the console.

A /

7 KVM Port

Section

The Cat 5e/6 cables that link to the KVM adapter cables (which link to the computers) plug in here.

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This Page Intentionally Left Blank

Chapter 2

1. Important safety information regarding the placement of this

device is provided on page 59. Please review it before proceeding.

2. Make sure that the power to any device that you connect to the

installation has been turned off. You m

ust unplug the power cords

of any computers that have the Keyboard Power On function.

Hardware Setup

Overview

For convenience and flexibility that allows mixing the PS/2, USB and serial interfaces, the KH2508 serve as intermediaries between the KVM switch and the connected devices:

A separate KVM adapter cable is required for each computer or device connection. The KVM adapter cables are listed in the KVM Adapter Cables section on page 5. Consult your dealer to find out which KVM adapter cables best fit your needs.

Before you Begin

A / KH2516A's design utilizes KVM adapter cables that

KH2508A / KH2516A User Manual

Stacking and Rack Mounting

The KH2508A / KH2516A can be stacked on the desktop or rack mounted at the front or rear of the rack. The following sections take you through the procedures for each method.

Note: 1. Allow at least 5.1 cm on each side for adequate ventilation and

12.7 cm at the rear for power cord and cable clearance.

2. The standard rack mount kit does not include rack mount screws or cage nuts. If you need additional rack mount screws or cage nuts, contact your rack dealer.

Stacking

The KH2508A / KH2516A can be placed on any appropriate level surface that can safely support its weight plus the weight of its attached cables. To place the KH2508 the backing material from the bottom of the rubber feet that came with this package, and stick them onto the switch’s bottom panel at the corners, as shown in the diagram, below:

A / KH2516A, or to stack units if you are daisy chaining them, remove

Chapter 2. Hardware Setup

Philips hex head

M3x6

Philips hex head

M3x6

Philips hex head

M3x8

Philips hex head

M3x8

Rack Mounting

The KH2508A / KH2516A can be mounted in a 19" (1U) rack. The mounting brackets can screw into either the front or the back of the unit so that it can attach to the front or the back of the rack. To rack mount the unit:

1. Remove the screws at the front or the rear, as shown in the diagram below.

2. Screw the mounting brackets into the sides of the unit at the front or the rear, as shown in the diagram below.

3. Slide the unit into the front or rear of the rack and secure it to the rack.

KH2508A / KH2516A User Manual

Single Station Installation

In a single stage installation, there are no additional KVM switches daisy chained down from the KH2508 installation, refer to the installation diagrams starting on page 15 (the numbers in the diagram correspond with the numbers of the instruction steps), and do the following:

A / KH2516A. To set up a single stage

1. Ground the KH2508

A / KH2516A by connecting one end of the grounding

wire provided with your switch to the grounding terminal, and the other end of the wire to a suitable grounded object.

Note: Do not omit this step. Proper grounding helps to prevent damage to

the unit from surges or static electricity.

2. Plug the the console keyboards, monitors, and mice into the unit’s Console 1 and Console 2 console ports. The ports are color coded and marked with icons for easy identification.

Note: You can use any combination of keyboard and mouse connections.

For example, you can use a PS/2 keyboard with a USB mouse.

3. Use Cat 5e/6 cable to connect any available KVM port to a KVM adapter cable that is appropriate for the computer you are installing (see KVM Adapter Cables, page 5 for details).

Note: To support a resolution of 1280x1024, the recommended maximum

distance between the KH2508

A / KH2516A and the KVM adapter

cable is 50 meters.

4. Connect the KVM adapter cable to the computer.

Plug the connectors on the KVM adapter cable into the appropriate ports of the computer you are installing. (See KVM Adapter Cable Installation Diagrams, page 16 for connection examples.)

5. Plug the female end of the power cord into the KH2508 power socket; plug the male end into an AC power source.

After the KH2508

A / KH2516A is cabled up, you can turn on the power. After

it is powered up, you can turn on the servers.

A / KH2516A's

Single Stage Installation Diagram

TEN

PS/2 CPU MODUL

ODEL

NO. KA912

PS/2 CPU MODUL

ODEL

NO. KA912

LINK

Chapter 2. Hardware Setup

KH2508A / KH2516A User Manual

KA7120 KA7520 KA7920 KA9120 KA9520

b y A

TEN

LIN

KA7170 KA7570 KA7970 KA9170 KA9570

b y A

TEN

LIN

KA9140

SERIAL TERMINAL

KA7130 KA9130

b y A

TEN

LIN

KVM Adapter Cable Installation Diagrams

Chapter 2. Hardware Setup

Daisy Chaining

To control even more computers, up to 31 additional KH2508A / KH2516A KVM switches can be daisy chained from the original KH2508 As many as 512 computers can be controlled from a single console in a complete installation.

Note: A single console KVM switch can not be installed on a KH2508A/

KH2516A daisy chain.

Tables showing the relation between the number of computers and the number of KH2508

A / KH2516A units needed to control them are provided on page 63.

To set up a daisy chained installation, do the following:

1. Use a daisy chain cable set to connect the Chain Out port of the parent

KH2508 KH2516

A / KH2516A unit to the Chain In port of the child KH2508A / A unit (first station out to second station in, second station out to

third station in, etc.).

Note: 1. You cannot use the chain in port of the First Station, since it is the

highest level parent.

2. Daisy chain cable sets require a separate purchase. See your dealer for details.

A or KH2516A.

2. Cable up the computers and the switch according to the information provided under Single Station Installation, page 14.

3. Repeat the above for any other switches you want to add to the chain.

4. Power up the installation according to the following procedure:

a) Plug in the power cord for the first station. Wait for the unit to ascertain

its station ID and display it on the Station ID LED. (The station ID for the first stage unit is 01, the ID for the second stage unit is 02, the ID for the third stage unit is 03, etc.)

b) Power on each station on the installation in turn (second station, then

third station, etc.). In each case, wait for the station ID to be ascertained and displayed before powering on the next station.

c) After all the stations are up, power on the computers.

Note: A chained KVM switch with active console ports is not supported

since the channel is occupied by the master KVM switch.

KH2508A / KH2516A User Manual

Daisy Chain Installation Diagram

Chapter 3

Basic Operation

Port Selection

KH2508A / KH2516A installations provide three methods to obtain instant access to any computer on your installation: Manual, OSD (on-screen display), and Hotkey.

Manual

Manual port selection simply involves pressing the port selection switch that corresponds to the device you wish to access.

Note: Before making your port selection, first make your console selection by

pressing the appropriate console selection button.

OSD

The OSD provides a menu driven interface to the computer switching procedure. OSD operation is discussed in the next chapter.

Hotkey

Hotkeys allow you to conveniently provide KVM focus to a particular computer from the keyboard instead of having to manually select them by pressing port selection switches, or accessing the OSD. Keyboard operation is discussed in Chapter 5.

KH2508A / KH2516A User Manual

Hot Plugging

The KH2508A / KH2516A supports hot plugging – components can be removed and added back into the installation by unplugging and replugging their cables without the need to shut the unit down. In order for hot plugging to work properly, however, the procedures described below should be followed.

Hot Plugging Stations

You can switch station positions by simply unplugging from the old parent and plugging into a new one. After you do, in order for the OSD menus to correspond to the change, you should reset the OSD. See RESET STATION IDS, page 32, for details.

Hot Plugging KVM Ports

After switching KVM ports, in order for the OSD menus to correspond to the change, you may need to reconfigure the OSD information for the new port information. The settings of the port name, operating system, and keyboard language will be restored to the KVM switch from any previously used adapter cables after they are plugged in. See F3: SET, page 28, and the port setting selections under the F4 ADM function, page 31, for details.

Note: 1. If a computer’s operating system doesn’t support hot plugging, this

function may not work properly.

2. Empty ports that previously were connected to an adapter cable will retain their prior configuration data.

Hot Plugging Console Ports

The keyboard, monitor, and mouse can be hot plugged. When hot plugging the mouse, however, be aware of the following:

 If you unplug the mouse (to reset the mouse, for example), you must use

the same mouse when you plug back in.

 If you plug in a different mouse, all stations and computers on the

installation should be shut down for 10 seconds, then restarted following the sequence given under Powering Off and Restarting on page 21.

 Some older operating systems may not support hot plugging.

Note: If, after hot plugging (or at any other time), there is no response to

keyboard and/or mouse input, perform a keyboard and mouse reset by pressing in the Reset switch (see page 7).

Chapter 3. Basic Operation

Powering Off and Restarting

If it becomes necessary to power off the KH2508A / KH2516A, or if the switch loses power and needs to be restarted, before starting it back up it is suggested that you follow these procedures to prevent possible equipment issues:

1. Shut down all the computers that are attached to the switch.

Note: You must unplug the power cords of any computers that have the

Keyboard Power On function.

2. Wait 10 seconds then power it back on. If you have shut down more than one station, power up the highest station first and work your way down to the lowest one. Wait for each station to display its station ID on the front panel LED before powering on the next one.

3. After the station(s) is (are) up, power the computers back on.

Port ID Numbering

Each computer on the installation is assigned a unique port ID. The port ID is a one or two segment number that is determined by the stage level and port number of the switch that the computer is connected to.

The first segment represents the stage level of the switch (04, for example); the second segment represents the number of the port that the computer is plugged into.

For example, a computer that is connected to KVM port 3 of a switch that is in the 12th position of the daisy chain, would have a port ID of 12-03.

Note: Single digit numbers (1–9) are padded with a preceding zero (0).

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Chapter 4

OSD Operation

OSD Overview

The On Screen Display (OSD) is a menu driven method to handle computer control and switching operations. All procedures start from the OSD Main Screen. To display the Main Screen, tap the OSD hotkey twice.

The default hotkey is [Scroll Lock]. You can change the hotkey to the Ctrl key or the Alt key if you like (see OSD HOTKEY, page 28).

Note: 1. If you use the Ctrl or Alt key method you must press the same Ctrl or

Alt key both times.

2. Once you start the OSD, the keyboard lock will be controlled by the device. The number lock and caps lock will always be on when the OSD is being accessed.

The OSD incorporates a two level (administrator / user) password system. Before the OSD Main Screen comes up, a login dialog box appears requesting a username and password. You must provide a valid username and password to continue.

The first time that the OSD is accessed, you must use the default username and password. The default username is administrator; the default password is password. For security purposes, we strongly recommend changing these to something unique after you log in for the first time.

After logging in with the default username and password, the OSD Main Screen opens in Administrator mode. In this mode, you have administrator privileges, with access to all administrator and user functions, and can set up operations (including password authorization for the future), as you prefer.

KH2508A / KH2516A User Manual

When you start the OSD, a screen similar to the one below appears:

Note: 1. The image above is the Administrator's Main Screen. The User Main

Screen does not show the F4 and F6 functions, since these are reserved for the administrator and cannot be accessed by users without administrator privileges.

2. Only the ports that have been set accessible by the Administrator, for the currently logged in user, are visible (see SET ACCESSIBLE PORTS, page 31, for details).

Chapter 4. OSD Operation

OSD Navigation

 To dismiss the menu, and deactivate the OSD, click the X at the upper

right corner of the OSD Window or press Esc.

 To Logout click F8 or the

ZZ symbol at the top of the Main Screen, or

press [F8].

 The OSD uses a tree view. To see the ports for a particular station, click

the plus sign [

drops down. To retract the list, click the dash symbol [

+ ] in front of the station number. The port number list

-] in front of the

station number.

 To move up or down through the list one line at a time, click the up and

down triangle symbols (ST

) or use the up and down arrow keys. If there

are more list entries than there is room for on the Main Screen, the screen will scroll.

 To move up or down through the list one screen at a time, click the up and

down arrow symbols (ÏÐ), or use the [Pg Up] and [Pg Dn] keys. If there are more list entries than there is room for on the Main Screen, the screen will scroll.

 To bring the KVM focus to a port, double-click it, or move the highlight

bar to it and then press [Enter].

 After executing any action, you automatically go back to the menu one

level above.

OSD Main Screen Headings

Heading Explanation

SN-PN This column lists the port ID numbers (station number-port number) for

all the KVM ports on the installation. The simplest method to access a particular computer is to click it, or move the highlight bar to it, and then press [Enter].

QV If a port has been selected for Quick View scanning (see SET QUICK

VIEW PORTS, page 30), an arrowhead displays in this column.

The computers that are powered on and are online have a sun symbol in this column.

NAME If a port has been given a name (see EDIT PORT NAMES, page 32), its

name appears in this column.

KH2508A / KH2516A User Manual

OSD Functions

OSD functions are used to configure and control the OSD. For example, you can rapidly switch to any port, scan selected ports only, limit the list you wish to view, designate a port as a Quick View Port, create or edit a port name, or make OSD setting adjustments.

To access an OSD function:

1. Either click a function key field at the top of the Main Screen, or press a function key on the keyboard.

2. In the submenus that appear make your choice either by double clicking it, or moving the highlight bar to it, and then pressing [Enter].

3. Press [Esc] to return to the previous menu level.

F1: GOTO

Accessing the GOTO function allows you to switch directly to a port either by keying in the port's name or its port ID.

 To use the Name method, key in 1, key in the port's name, and then press

[Enter].

 To use the Port ID method, key in 2, key in the port ID, and then press

[Enter].

Note: You can key in a partial name or port ID. The screen will show all the

computers that the user has Vie w rights to (see SET ACCESSIBLE PORTS, page 31), that match the name or port ID pattern, regardless of

the current List settings (see F2: LIST, page 27, for details).

To return to the OSD Main Menu without making a choice, press [Esc].

Chapter 4. OSD Operation

F2: LIST

Many of the switch’s OSD functions only operate on the computers currently selected for listing on the Main Screen. Accessing this function lets you broaden or narrow the scope of ports that get listed. The submenu choices and their meanings are given in the table below:

Choice Meaning

ALL Lists all of the ports on the installation.

QUICK VIEW Lists only the ports that have been selected as Quick View Ports

POWERED ON Lists only the ports that have attached computers Powered On.

QUICK VIEW + POWERED ON

Move the highlight bar to the choice you want, then press [Enter]. An icon appears before the choice to indicate that it is the currently selected one.

(see SET QUICK VIEW PORTS, page 30).

Lists only the ports that have been selected as Quick View Ports (see SET QUICK VIEW PORTS, page 30), and that have their attached computers Powered On.

KH2508A / KH2516A User Manual

F3: SET

Accessing this function allows the administrator and each user to set up an individual working environment. A separate profile for each operator is stored by the OSD and is activated according to the username provided during login.

To change a setting:

1. Double-click it; or move the highlight bar to it, then press [Enter].

2. After you select an item, a submenu with further choices appears. To make a selection, either double click it; or move the highlight bar to it, then press [Enter]. An icon appears before the selected choice to indicate which one it is. The settings are explained in the following table:

Setting Function

OSD HOTKEY

PORT ID DISPLAY POSITION

PORT ID DISPLAY DURATION

PORT ID DISPLAY MODE

SCAN DURATION

Selects which hotkey activates the OSD function:

[Scroll Lock] [Scroll Lock]; [Ctrl] [Ctrl] or [Alt] [Alt].

Since the [Ctrl] or [Alt] key combinations may conflict with programs running on the computers, the default is the [Scroll Lock] combination.

Allows you to position where the port ID appears on the monitor. The default is the upper left corner, but you can choose to have it appear anywhere on the screen.

Use the mouse or the arrow Keys plus Pg Up, Pg Dn, Home, End, and 5 (on the numeric keypad with Num Lock off), to position the port ID display, then click or press [Enter] to lock the position and return to the Set submenu.

Note: The setting affects the currently selected port. If you don’t want to use the default position, you must change the setting for each port individually.

Determines how long a port ID displays on the monitor after a port change has taken place. There are two choices: 3 seconds and Always On.

Selects how the port ID is displayed: the port number alone (PORT NUMBER); the port name alone (PORT NAME); or the port number plus the port name (PORT NUMBER + PORT NAME). The default is PORT NUMBER + PORT NAME.

Determines how long the focus dwells on each port as it cycles through the selected ports in Auto Scan mode (see F7: SCAN, page 36). Key in a value from 1–255 seconds, then press [Enter]. Default is 5 seconds.

Chapter 4. OSD Operation

Setting Function

SCAN/SKIP MODE

SCREEN BLANKER

HOTKEY COMMAND MODE

HOTKEY This setting selects the Hotkey invocation keys (see Hotkey Operation,

SET OSD LANGUAGE

SET CONSOLE KEYBOARD

SET LOGOUT TIMEOUT

ACTIVATE BEEPER

Selects which computers will be accessed under Skip mode (see F5: SKP, page 34), and Auto Scan mode (see F7: SCAN, page 36). Choices are:

ALL – All the ports which have been set Accessible (see SET ACCESSIBLE PORTS, page 31);

QUICK VIEW

have been selected as Quick View Ports (see SET QUICK VIEW PORTS, page 30);

POWERED ON

and are Powered On; QUICK VIEW + POWERED ON – Only those ports which have been

set Accessible and have been selected as Quick View Ports and are Powered On. The default is ALL.

If there is no input from the console for the amount of time set with this function, the screen is blanked. Key in a value from 1–30 minutes, then press [Enter]. A setting of 0 disables this function. The default is off (disabled).

Enables / Disables the Hotkey function (see Hotkey Operation, page 39), in case a conflict with programs running on the computers occurs. The default is On.

page 39). Choices are [NUM LOCK] + [-], or [CTRL] + [F12]. The default is on as set by [NUM LOCK] + [-].

Sets the language that the OSD displays in. Choices are: English, German, Japanese, Simplified Chinese and Traditional Chinese.The default is English.

Sets the keyboard language mapping of the console keyboard. The default is Auto. If the switch does not automatically receive language mapping from the keyboard, it will set to English (US).

If there is no input from the console for the amount of time set with this function, the operator is automatically logged out. A login is necessary before the console can be used again.

This enables other operators to gain access to the computers when the original operator is no longer accessing them, but has forgotten to log out. To set the timeout value, key in a number from 1–180 minutes, then press [Enter]. If the number is 0 (zero), this function is disabled. Default is Off.

Note: This feature does not function if Set Login Mode is disabled. See SET LOGIN MODE, page 33.

Choices are Y (for Yes), or N (for No). When activated, the beeper sounds whenever a port is changed, when activating the Auto Scan function (see F7: SCAN, page 36), or an invalid entry is made on an OSD menu. The default is On.

– Only those ports which have been set Accessible and

– Only those ports which have been set Accessible

KH2508A / KH2516A User Manual

Setting Function

SET QUICK VIEW PORTS

This function lets users and the administrator select which ports to include as Quick View ports.

 To select/deselect a port as a Quick View Port, use the navigation

keys to move the highlight bar to it, then press the [Spacebar].

 When a port has been selected as a Quick View Port, an arrowhead

displays in the QV column of the LIST on the Main Screen to indicate so. When a port is deselected, the arrowhead disappears.

 If one of the Quick View options is chosen for the LIST view (see F2:

LIST, page 27), only a port that has been selected here will display

on the List.

 If one of the Quick View options is chosen for Auto Scanning (see

SCAN/SKIP MODE, page 29), only a port that has been selected here will be Auto Scanned.

The default is for no ports to be selected.

Chapter 4. OSD Operation

F4: ADM

F4 is an administrator only function. Accessing this function allows the administrator to configure and control the overall operation of the OSD. To change a setting double click it; or use the up and down arrow keys to move the highlight bar to it, then press [Enter].

After you select an item, a submenu with further choices appears. Double click the choice you want, or move the highlight bar to it, then press [Enter]. An icon appears before the selected choice. The settings are explained in the following table:

Setting Function

SET USER ACCOUNT

SET ACCESSIBLE PORTS

SET OPERATION MODE

This function is used to set usernames and passwords for the administrator and users:

 One Administrator and 10 user passwords can be set.  After you select the administrator field or one of the user fields, a

screen that allows you to key in your username and password appears. The username and password may be up to 16 characters long, and can consist of any combination of letters and numbers (A– Z, 0–9).

 For each individual, key in the username and password, then press

[Enter].

 To modify or delete a previous username and/or password, use the

backspace key to erase individual letters or numbers.

 The icon indicates data is stored in the account.

This function allows the administrator to define user access to the computers on the installation on a port-by-port basis.

For each user, select the target port, then press the [Spacebar] to cycle through the choices: F (Full access), V (View Only), or N (No Access). Repeat until all access rights have been set, then press [Esc]. The default is F for all users on all ports.

Note: An N setting means that no access rights are granted. The port will not show up on the user's LIST on the Main Screen.

This function defines how the port is to be accessed when multiple users have logged on. Press [Spacebar] to cycle through the settings, as follows:

E (Exclusive): The first user to switch to the port has exclusive control

over the port. No other users can view the port. The Timeout function does not apply to ports which have this setting.

O (Occupy): The first user to switch to the port has control over the

port. However, additional users may view the port’s video display. If the user who controls the port is inactive for longer than the time set in the Timeout box, port control is transferred to the next user to move the mouse or strike the keyboard.

S (Share): Users simultaneously share control over the port. Input

from the users is placed in a queue and executed chronologically.

KH2508A / KH2516A User Manual

Setting Function

SET OCCUPY TIMEOUT

EDIT PORT NAMES

This function sets a time threshold for users on ports whose Operation Mode has been set to Occupy (see SET OPERATION MODE, page 31). If there is no activity from the user occupying the port for the amount of time set here, the user is timed out and keyboard and mouse control on the port is released, after which the first user to send keyboard or mouse input will occupy the port. However, the user originally connected to the port will still see the port’s video output.

Input a value from 1 to 255 seconds. The default is 30 seconds.

To identify which computer is connected to a particular port, each port can be assigned a name. This function allows the administrator to create, modify, or delete port names. To assign a port name:

1. Click the port to be assigned, or use the navigation keys to move the highlight bar to it, then press [Enter].

2. Key in the new port name; or modify/delete the old one. The maximum number of characters allowed for the port name is 14. Legal characters include:

 All alpha characters: A–Z  All numeric characters: 0–9

*You can enter the port names in either upper or lower case however the OSD displays the port name only in UPPERCASE.

3. When you have finished editing, press [Enter] to have the change take effect. To abort the change, press [Esc].

RESTORE DEFAULT VAL UES

CLEAR THE NAME LIST

RESET STATION IDS

SET OPERATING SYSTEM

This function is used to undo all configuration changes and return to the original factory default configuration (see OSD Factory Default

Settings, page 66) ports, which are saved.

This function clears the port name list.

Use this function to reset the Station IDs when the IDs in the OSD do not match the physical positions of the Stations in the chain. This can be due to a new installation or a change in the station positions.

Note: Only the station numbers get updated. Except for the port names, all administrator settings (such as Set Accessible Ports, Set Quick View Ports, etc.), for all of the computers affected by the change, have to be manually redone.

Specifies the operating platform of the computer attached to each port. You must configure each port of the installation. For each port, press the [Spacebar] to cycle through the choices (PC, Mac, or Sun). Repeat until all the ports have been set, then press [Esc]. The default is PC.

Note: If you are installing a Sun or Mac computer it may not boot when you run it for the first time unless you first set the correct operating system for the port it is connected to.

– except for the Names settings, assigned to the

Setting Function

SET CAT 5 LENGTH

SET KEYBOARD LANGUAGE

FIRMWARE UPGRADE

ADAPTER UPGRADE

SET LOGIN MODE

Lets you specify how long the Cat 5e/6 cable between the port and the KVM adapter cable is. Press [Spacebar] to cycle through the cable length settings:

S: Short – for up to 25 m M: Medium – for between 20 and 35 m L: Long – for above 35 m

An S, M, or L appears next to the port to indicate the choice.

Sets the keyboard language layout for the computers attached to each port. Press [Spacebar] to cycle through the language choices. The default keyboard language layout is English (US).

In order to upgrade the KH2508A / KH2516A’s and adapter cables firmware (see The Firmware Upgrade Utility, page 51) you must first enable Firmware Upgrade mode with this setting.

When you bring up this menu, the current firmware version levels display. Select Y to enable Firmware Upgrade mode, or N to leave this menu without enabling it.

This function allows the administrator to check the firmware version of the KVM adapter cable. When you bring up this menu, the current firmware version levels display. See FIRMWARE UPGRADE, above, also.

This function allows the administrator to request users to login or not. When the login dialog box is disabled, the system disables the login/ logout function. If the system is re-started, the login/logout function remains disabled.

Chapter 4. OSD Operation

KH2508A / KH2516A User Manual

F5: SKP

This function enables you to easily skip backward or forward, switching the console focus from the currently active KVM Port to the previous or next available one.

 The selection of computers to be available for Skip mode switching is

made with the Scan/Skip mode setting under the F3 SET function (see page 29).

 When you are in Skip mode, press:

← To skip to the previous port in the List. → To skip to the next port in the List.

↑ To skip to the last port of the previous station in the List. ↓ To skip to the first port of the next station in the List.

Note: When you skip, you only skip to the previous or next available

computer that is in the Scan/Skip mode selection (see page 29).

 If a port has been selected for Scan/Skip mode, when the focus switches to

that port a left/right triangle symbol appears before its port ID display.

 While Skip mode is in effect, the console will not function normally. You

must exit Skip mode in order to regain control of the console.

 To exit Skip mode, press the [Spacebar] or [Esc].

Chapter 4. OSD Operation

F6: BRC

F6 is an administrator only function. When this function is in effect, commands sent from the console are broadcast to all available computers on the installation.

This function is particularly useful for operations that need to be performed on multiple computers, such as performing a system wide shutdown, installing or upgrading software, etc.

 While BRC mode is in effect, a speaker symbol appears before the port ID

display of the port that currently has the console focus.

 While BRC mode is in effect, the mouse will not function normally. You

must exit BRC mode in order to regain control of the mouse.

 To exit BRC mode, start the OSD (with the OSD Hotkey), then click the

F6 field, or press [F6], to turn BRC mode off.

KH2508A / KH2516A User Manual

F7: SCAN

This function automatically switches among the available computers at regular intervals so that you can monitor their activity without having to take the trouble of switching manually.

 The selection of computers to be included for Auto Scanning is made with

the Scan/Skip mode setting under the F3 SET function (see page 29).

 The amount of time that each port displays for is set with the Scan

Duration setting under the F3 SET function (see page 28).

 As each computer is accessed, an appears in front of the port ID

display to indicate that it is being accessed under Auto Scan mode.

 While you are in Auto Scan mode, you can pause the scanning in order to

keep the focus on a particular computer either by pressing P, or with a left click of the mouse. To resume scanning, press any key or left click again. See Invoking Auto Scan, page 42, for details.

 While Auto Scan mode is in effect, the console will not function normally.

You must exit Auto Scan mode in order to regain control of the console.

 To exit Auto Scan mode, press the [Spacebar] or [Esc].

Chapter 4. OSD Operation

F8: LOUT

Clicking the F8 field, or pressing [F8], logs you out of the OSD and blanks the console screen. This is different from simply deactivating the OSD when you are at the Main Screen by pressing [Esc].

With this function you must log in all over again to regain access to the OSD, whereas with [Esc], all you have to do to reenter the OSD is tap the OSD Hotkey.

Note: 1. When you reenter the OSD after logging out, the screen stays blank

except for the login dialog box. You must input your username and password before you can continue (see page 23). If login has been disabled by the administrator (see page 33), the F8 function is also disabled.

2. If you reenter the OSD after logging out, and immediately use [Esc] to deactivate the OSD without having selected a port from the OSD menu, a Null Port message displays on the screen. The OSD hotkey will bring up the OSD Main Screen.

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Chapter 5

Hotkey Operation

Hotkey Port Control

Hotkey port control allows you to provide KVM focus to a particular computer directly from the keyboard. The KH2508 Hotkey port control features:

 Selecting the Active Port  Auto Scan Mode Switching  Skip Mode Switching  Computer Keyboard / Mouse Reset

The following settings can also be controlled in Hotkey mode:

 Setting the Beeper  Setting the Quick Hotkey  Setting the OSD Hotkey  Setting the Port Operating System  Restoring the OSD Default Values

A / KH2516A provides the following

KH2508A / KH2516A User Manual

Invoking Hotkey Mode

All Hotkey operations begin by invoking Hotkey mode.1 To invoke Hotkey mode you may use two possible keystroke sequences shown below. Only one of the two key-sequences below can be operational (see Setting the Hotkey key combination on page 46):

Number Lock and Minus Keys

1. Hold down the

2. Press and release the

3. Release the

[Num Lock] + [-]

[Num Lock] key;

[Minus] key;

[Num Lock] key:

Control and F12 Keys

1. Hold down the

2. Press and release the

3. Release the

[Ctrl] + [F12]

[Ctrl] key;

[F12] key;

[Ctrl] key:

Hotkey Mode Environment

When Hotkey mode is active:  A command line appears on the monitor screen. The command line prompt

is the word Hotkey: in white text on a blue background, and displays the subsequent Hotkey information that you key in.

 Ordinary keyboard and mouse functions are suspended – only Hotkey

compliant keystrokes (described in the sections that follow), can be input.

Exiting Hotkey Mode

Pressing

[Esc] exits Hotkey mode.

1. Make sure that the Hotkey Command Mode function is enabled and that you key in the appropriate Hotkey. See page 29 for details.

Chapter 5. Hotkey Operation

Selecting the Active Port

Each computer port is assigned a port ID (see Port ID Numbering, page 21). You can directly access any computer with a Hotkey combination that specifies the port ID that the computer is connected to. The steps are:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Key in the port ID.

The port ID numbers display on the command line as you key them in. If you make a mistake, use

[Backspace] to erase it.

3. Press

[Enter].

After you press [Enter], the KVM focus switches to the designated computer and you automatically exit Hotkey mode.

Note: In Hotkey mode, the KVM focus will not switch to a port if an

invalid switch or port number is entered. The Hotkey command line will continue to display on the screen until you enter a valid switch and port number combination, or exit Hotkey mode.

KH2508A / KH2516A User Manual

Auto Scan Mode Switching

Auto Scan automatically switches among all the active computer ports that are accessible to the currently logged on user at regular intervals. This allows their activity to be monitored automatically (See SKAN/SKIP MODE of the OSD F3 SET function, page 29).

Setting the Scan Interval

The amount of time Auto Scan keeps the focus on each port is set with the SCAN DURATION setting of the OSD F3 SET function (see page 28). You can change the scan interval, before you activate Hotkey Auto Scanning, by entering the following Hotkey combination:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Key in [A][n]

Where [A] is the letter A, and [n] is a number from 1–255 that represents the length of the focus time in seconds.

The letter A and the numbers display on the command line as you key them in. Use

[Backspace] to erase any wrong entry.

3. Press

[Enter]

After you press [Enter], you exit Hotkey mode, and are ready to start Auto Scanning.

Invoking Auto Scan

To invoke Auto Scanning mode, key in the following Hotkey combination:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [A] + [Enter].

 While you are in Auto Scan mode, you can pause the scanning to keep

the focus on a particular computer by pressing

[P]. When Auto

Scanning is paused, the Command Line displays: Auto Scan: Paused.

(Continues on next page.)

Chapter 5. Hotkey Operation

(Continued from previous page.)

When you want to keep the focus on a particular computer, Pausing is more convenient than exiting Auto Scan mode. When you resume scanning it starts at the computer where you paused. If you exited and then restarted Auto Scanning, it starts, at the beginning, from the first computer on the installation.

To resume Auto Scanning, press any key. Scanning continues from the computer you paused at.

 While the Auto Scan mode is operating, ordinary keyboard and mouse

functions are suspended - only Auto Scan mode compliant keystrokes can be input. You must exit Auto Scan mode to regain normal control of the console.

Exiting Auto Scan

1. To exit Auto Scan mode press stops when you exit Auto Scan mode.

[Esc] or [Spacebar]. Auto Scanning

KH2508A / KH2516A User Manual

Skip Mode Switching

This feature allows you to switch between computers in order to monitor them manually. You can focus on a particular port for as long as you like – as opposed to auto-scanning, which automatically switches the port focus after a fixed interval.

Entering Skip Mode

To enter Skip mode, key in the following Hotkey combination:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press one of the [Arrow] keys.

After you press one of the keyboard arrows, you automatically exit Hotkey mode and enter Skip mode where you can switch ports as follows:

← Skips to the first accessible port. (See SCAN/SKIP MODE,

page 29, for information regarding accessible ports.)

→ Skips to the next accessible port.

↑ Skips to the last accessible port of the previous station.

↓ Skips to the first accessible port of the next station.

Once you are in Skip mode, you can continue skipping by pressing the arrow keys. You do not have to use the [Num Lock] + [-] combination again.

While Skip mode is in effect, ordinary keyboard and mouse functions are suspended – only Skip mode compliant keystrokes can be input. You must exit Skip mode to regain normal control of the console.

Exiting Skip Mode

1. To exit Skip mode, press

[Esc] or [Spacebar].

Chapter 5. Hotkey Operation

Computer Keyboard / Mouse Reset

If either the keyboard or mouse stop functioning on the computer connected to the currently selected port, you can perform a keyboard / mouse reset on the computer by executing the following steps:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [F5].

After you press [F5] you automatically exit Hotkey mode and regain keyboard and mouse control on the computer connected to the KVM port. If you fail to regain keyboard / mouse control on the computer after pressing [F5], perform a system reset. For more information see Reset Switch, page 7.

This function is essentially the same as unplugging and replugging the keyboard and mouse on the target computer.

Setting the Hotkey Beeper ON/OFF

The beeper (see Activate Beeper, page 29) can be turned on and off with Hotkeys by the following steps:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [B].

After you press

[B], the beeper turns on or off. The command line displays

Beeper On or Beeper Off for one second; then the message disappears and you automatically exit Hotkey mode.

KH2508A / KH2516A User Manual

Setting the Hotkey key combination

The keys used to enter the Hotkey Mode (see HOTKEY COMMAND MODE, page 29) can be switched between:

[Num Lock] + [-], and [Ctrl] + [F12]

by the following steps:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [H].

After you press [H], the command line displays HOTKEY HAS BEEN CHANGED for one second; then the message disappears and you automatically exit Hotkey mode.

Setting the OSD Hotkey combination

The Hotkeys used to access the OSD (see OSD HOTKEY, page 28) can be switched between and [Alt], [Alt] by the following steps:

[Scroll Lock], [Scroll Lock], [Ctrl], [Ctrl],

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [T].

After you press

[T], the command line displays HOTKEY HAS BEEN

CHANGED for one second; then the message disappears and you automatically exit Hotkey mode.

Chapter 5. Hotkey Operation

Setting the Port Operating System

A port’s operating system configuration can be matched to that of the computer attached to the port by performing the following steps:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press a [Function] key, where [Function] refers to one of the function keys in the following table:

Key Description

Sets the Port OS to Windows

Sets the Port OS to Mac

Sets the Port OS to Sun

After pressing a function key you automatically exit Hotkey mode.

Restore the Default Values

This administrator-only Hotkey restores the KH2508A / KH2516A default values (see RESTORE DEFAULT VALUES on page 32) by performing the following steps:

1. Invoke Hotkey mode:

[Num Lock] + [-] or [Ctrl] + [F12]

2. Press [R].

3. Press

After you press

[Enter].

[Enter], the command line displays RESET TO DEFAULT

SETTING for three seconds; then the message disappears and you automatically exit Hotkey mode.

KH2508A / KH2516A User Manual

Hotkey Summary Table

[Num Lock] + [-]

[Ctrl] + [F12]

[A] [Enter] Invokes Auto Scan mode.

When Auto Scan mode is in effect, [P] or left-click pauses auto-scanning.

When auto-scanning is paused, pressing any key or another left-click resumes autoscanning.

[B] Toggles the Beeper On or Off.

[Esc] or [Spacebar] Exits hotkey mode.

[F1] Sets Operating System to Windows

[F2] Sets Operating System to Mac

[F3] Sets Operating System to Sun

[F5] Performs a keyboard / mouse reset on the

[H] Toggles the Hotkey invocation keys.

[Port ID] [Enter] Switches access to the computer that

[R] [Enter] Administrator only hotkey. It returns the

[T] Toggles the OSD Hotkey between [Ctrl]

←]

[

→]

[

↑]

[

↓]

target computer.

corresponds to that Port ID.

switch’s settings to their default values.

[Ctrl] and [Scroll Lock] [Scroll Lock].

Invokes Skip Mode and skips from the current port to the first accessible port previous to it.

Invokes Skip Mode and skips from the current port to the next accessible port.

Invokes Skip Mode and skips from the current port to the last accessible port of the previous Station.

Invokes Skip Mode and skips from the current port to the first accessible port of the next Station.

Chapter 6

Keyboard Emulation

Mac Keyboard

The PC compatible (101/104 key) keyboard can emulate the functions of the Mac keyboard. The emulation mappings are listed in the table below.

PC Keyboard Mac Keyboard

[Shift] Shift

[Ctrl] Ctrl

[Ctrl] [1]

[Ctrl] [2]

[Ctrl] [3]

[Ctrl] [4]

[Alt] Alt

[Print Screen] F13

[Scroll Lock] F14

[Enter] Return

[Backspace] Delete

[Insert] Help

[Ctrl]

F15

Note: When using key combinations, press and release the first key (Ctrl),

then press and release the activation key.

KH2508A / KH2516A User Manual

Sun Keyboard

The PC compatible (101/104 key) keyboard can emulate the functions of the Sun keyboard when the Control key [Ctrl] is used in conjunction with other keys. The corresponding functions are shown in the table below.

PC Keyboard Sun Keyboard

[Ctrl] [T] Stop

[Ctrl] [F2] Again

[Ctrl] [F3] Props

[Ctrl] [F4] Undo

[Ctrl] [F5] Front

[Ctrl] [F6] Copy

[Ctrl] [F7] Open

[Ctrl] [F8] Paste

[Ctrl] [F9] Find

[Ctrl] [F10] Cut

[Ctrl] [1]

[Ctrl] [2]

[Ctrl] [3]

[Ctrl] [4]

[Ctrl] [H] Help

Compose



Note: When using key combinations, press and release the first key (Ctrl),

then press and release the activation key.

Chapter 7

The Firmware Upgrade Utility

Introduction

The purpose of the Windows-based Firmware Upgrade Utility is to provide an automated process for upgrading the KH2508 adapter cable firmware. The program comes as part of a Firmware Upgrade Package that is specific for each device.

A / KH2516A and compatible

The latest revisions of new firmware for the KH2508 supported KVM Adapter Cables are posted as Firmware Upgrade Packages on our web site. Check the website regularly to find the latest firmware packages and information relating to them.

Note: 1. A single upgrade package contains the upgrade files for the Main

Board, OSD and all the supported KVM Adapter Cables.

2. KVM Adapter Cables are referred to as I/O Modules in some dialog boxes.

A / KH2516A, and

Before You Begin

To prepare for the firmware upgrade, do the following:

1. From a computer that is not part of your KVM installation go to our Internet support site and choose the model name that relates to your device to get a list of available Firmware Upgrade Packages.

2. Choose the Firmware Upgrade Package you want to install (usually the most recent), and download it to your computer.

(Continues on next page.)

KH2508A / KH2516A User Manual

(Continued from previous page.)

3. Use the firmware upgrade cable (provided with this unit), to connect a COM port on your computer to the firmware upgrade port of your device.

Note: On a daisy chained installation, connect the cable to the first station

(master) unit. The chained stations (slaves) will receive the upgrade via the daisy chain cables.

4. Shut down all of the computers except those that are attached to cable adapters that require upgrade. The cable adapters require the computers power source to be upgraded. Do not shut down the stations on the KVM installation.

5. From your KVM switch console, bring up the OSD (see page 23) and select the F4ADM function.

6. Scroll down to FIRMWARE UPGRADE. Press [Enter], then press [Y] to start the Firmware Upgrade mode (see page 33).

Note: 1. The upgrade to the KVM Adapter Cables takes place via the Cat

5e/6 cable that connects the adapter cable to the KVM switch, so there is no separate firmware upgrade cable to attach.

2. Adapter cable firmware selected with the upgrade utility will upgrade in a single session all connected adapter cables models that match the firmware type.

Chapter 7. The Firmware Upgrade Utility

Device Firmware Available

Performing the Upgrade

Starting the Upgrade

To upgrade your firmware:

1. Run the downloaded Firmware Upgrade Package file, either by double clicking the file icon, or by opening a command line and keying in the full path to it.

The Firmware Upgrade Utility Welcome screen appears:

2. Read and Agree to the License Agreement (enable the I Agree radio button).

3. Click Next to continue. The Firmware Upgrade Utility main screen appears:

KH2508A / KH2516A User Manual

Deselect any firmware not to be upgraded

Select for Firmware Checking

The Utility checks to make sure the KH2508A / KH2516A is in the Firmware Upgrade Mode and then lists all firmware available preselected in the Device List panel.

Note: If the Utility fails to list any firmware check that the KH2508A /

KH2516

A is connected and in the Firmware Upgrade Mode.

Alternatively the Firmware Package maybe corrupted or the wrong version therefore obtain a new copy of the file and retry.

4. Select MAIN01 and MAIN02 to upgrade the firmware for the Main Board and the OSD; they must always be upgraded together as a pair. Deselect any KVM Adapter Cable types not included in the installation or are not required to be upgraded. After you have made your selection(s), click Next to perform the upgrade.

 Check Firmware Version - when selected the utility compares the Main

Board and OSD firmware level with the upgrade files MAIN01 and MAIN02. If the device versions are higher than the upgrade versions a dialog box informs you and gives you the option to continue or cancel. The firmware versions of the adapter cables are not checkd.

If you didn't enable Check Firmware Version, the utility installs the upgrade files without checking whether they are a higher level, or not.

Chapter 7. The Firmware Upgrade Utility

 As the upgrade proceeds status messages appear in the Status

Messages panel, and the progress toward completion is shown on the Progress bar.

 To abort the upgrade procedure before it completes, click Cancel.

If you cancel before completion, a dialog box warns you that the upgrade will not finish and shows the options to proceed or abort the cancel operation. The Mainboard and OSD firmware may be missing or corrupted upon rebooting the switch.

To recover from missing or corrupt firmware, see Firmware Upgrade Recovery, page 56.

Upgrade Succeeded

After the upgrade has completed, a screen appears to inform you that the procedure was successful

Click Finish to close the Firmware Upgrade Utility

Note: At the completion of the upgrade, the KH2508A / KH2516A restarts

KH2508A / KH2516A User Manual

Upgrade Failed

If the upgrade failed to complete successfully a dialog box appears asking if you want to retry. Click Yes to retry. If you click No, the Upgrade Failed screen appears similar to below:

Click Cancel to close the Firmware Upgrade Utility. See the next section, Firmware Upgrade Recovery, for how to proceed.

Firmware Upgrade Recovery

Should the firmware on the switch be missing or corrupted it may not be possible to operate or boot the switch. This could be due to:

 Starting the Firmware Upgrade mode (see FIRMWARE UPGRADE,

page 33), and then canceling the upgrade.

 An interruption of the firmware upgrade.  The firmware upgrade procedure failing.  The unit’s firmware becoming corrupted for unknown reasons.

Main Board and OSD Firmware Upgrade Recovery

To perform a firmware upgrade recovery, do the following:

1. On the KVM Switch slide the Firmware Upgrade Recovery Switch (see page 7) to the Recover position.

2. Power off and restart the switch according to the instructions given in the Powering Off and Restarting section (see page 21).

Chapter 7. The Firmware Upgrade Utility

3. From your KVM switch console, bring up the OSD (see page 23) and

select the F4ADM function.

4. Scroll down to FIRMWARE UPGRADE. Press [Enter].

5. Press [Y] to invoke Upgrade mode.

6. Proceed with the firmware upgrade as described in Performing the

Upgrade, starting on page 53.

7. When the upgrade ends, power off the switch

8. Slide the Firmware Upgrade Recovery Switch back to the Normal

position.

9. Power on the switch.

Note: If one of the child KVM units fails to upgrade successfully, unchain it

from the installation and perform the recovery and upgrade operation on it independently. After it has been successfully upgraded, plug it back into the chain

Adapter Cable Firmware Upgrade Recovery

To perform an adapter cable firmware upgrade recovery, do the following:

1. Unplug the adapter cable from the computer it is connected to.

2. Slide its Firmware Upgrade Recovery Switch (located next to the RJ45

connector) to the Recover position.

3. Plug the adapter cable back into the computer.

4. From your KVM switch console, bring up the OSD (see page 23) and

select the F4ADM function.

5. Scroll down to FIRMWARE UPGRADE. Press [Enter].

6. Press [Y] to invoke Upgrade mode.

7. Proceed with the firmware upgrade as described in Performing the

Upgrade, starting on page 53.

8. After the upgrade completes and the switch restarts, unplug the adapter

cable from the computer and slide the Firmware Upgrade Recovery Switch back to the Normal position.

9. Plug the adapter cable back into the computer.

KH2508A / KH2516A User Manual

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Appendix

Safety Instructions

General

 Read all of these instructions. Save them for future reference.  Follow all warnings and instructions marked on the device.  Do not place the device on any unstable surface (cart, stand, table, etc.). If

the device falls, serious damage will result.

 Do not use the device near water.  Do not place the device near, or over, radiators or heat registers.  The device cabinet is provided with slots and openings to allow for

adequate ventilation. To ensure reliable operation, and to protect against overheating, these openings must never be blocked or covered.

 The device should never be placed on a soft surface (bed, sofa, rug, etc.) as

this will block its ventilation openings. Likewise, the device should not be placed in a built in enclosure unless adequate ventilation has been provided.

 Never spill liquid of any kind on the device.  Unplug the device from the wall outlet before cleaning. Do not use liquid

or aerosol cleaners. Use a damp cloth for cleaning.

 The device should be operated from the type of power source indicated on

the marking label. If you are not sure of the type of power available, consult your dealer or local power company.

 The device is designed for IT power distribution systems with 230V

phase-to-phase voltage.

 To prevent damage to your installation it is important that all devices are

properly grounded.

 The device is equipped with a 3-wire grounding type plug. This is a safety

feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not attempt to defeat the purpose of the grounding-type plug. Always follow your local/national wiring codes.

(Continues on next page.)

KH2508A / KH2516A User Manual

(Continued from previous page.)

 Do not allow anything to rest on the power cord or cables. Route the

power cord and cables so that they cannot be stepped on or tripped over.

 If an extension cord is used with this device make sure that the total of the

ampere ratings of all products used on this cord does not exceed the extension cord ampere rating. Make sure that the total of all products plugged into the wall outlet does not exceed 15 amperes.

 To help protect your system from sudden, transient increases and

decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).

 Position system cables and power cables carefully; Be sure that nothing

rests on any cables.

 Never push objects of any kind into or through cabinet slots. They may

touch dangerous voltage points or short out parts resulting in a risk of fire or electrical shock.

 Do not attempt to service the device yourself. Refer all servicing to

qualified service personnel.

 If the following conditions occur, unplug the device from the wall outlet

and bring it to qualified service personnel for repair.

 The power cord or plug has become damaged or frayed.  Liquid has been spilled into the device.  The device has been exposed to rain or water.  The device has been dropped, or the cabinet has been damaged.  The device exhibits a distinct change in performance, indicating a need

for service.

 The device does not operate normally when the operating instructions

are followed.

 Only adjust those controls that are covered in the operating instructions.

Improper adjustment of other controls may result in damage that will require extensive work by a qualified technician to repair.

 Do not connect the RJ-11 connector marked “UPGRADE” to a public

telecommunication network.

Appendix

Rack Mounting

 Before working on the rack, make sure that the stabilizers are secured to

the rack, extended to the floor, and that the full weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined multiple racks before working on the rack.

 Always load the rack from the bottom up, and load the heaviest item in the

rack first.

 Make sure that the rack is level and stable before extending a device from

the rack.

 Use caution when pressing the device rail release latches and sliding a

device into or out of a rack; the slide rails can pinch your fingers.

 After a device is inserted into the rack, carefully extend the rail into a

locking position, and then slide the device into the rack.

 Do not overload the AC supply branch circuit that provides power to the rack.

The total rack load should not exceed 80 percent of the branch circuit rating.

 Make sure that all equipment used on the rack – including power strips and

other electrical connectors – is properly grounded.

 Ensure that proper airflow is provided to devices in the rack.  Ensure that the operating ambient temperature of the rack environment

does not exceed the maximum ambient temperature specified for the equipment by the manufacturer

 Do not step on or stand on any device when servicing other devices in a rack.

KH2508A / KH2516A User Manual

Technical Support

International

 For online technical support – including troubleshooting, documentation,

and software updates: http://support.aten.com

 For telephone support, see Telephone Support, page iii:

North America

Email Support support@aten-usa.com

Online Technical Support

Telephone Support 1-888-999-ATEN ext 4988

When you contact us, please have the following information ready beforehand:

 Product model number, serial number, and date of purchase.  Your computer configuration, including operating system, revision level,

expansion cards, and software.

 Any error messages displayed at the time the error occurred.  The sequence of operations that led up to the error.  Any other information you feel may be of help.

Troubleshooting Documentation Software Updates

http://www.aten-usa.com/support

Appendix

Specifications

Function KH2508A KH2516A

Computer Connections

Port Selection OSD (On Screen Display);

Connectors Console KB 2 x 6-pin Mini-DIN F (Purple)

Switches Port Selection 8 x Pushbutton 16 x Pushbutton

LEDs Port

Emulation Keyboard PS/2; USB

Scan Interval 1–255 sec.

Video 1600 x 1200 @ 60 Hz (40 m)

I/P Rating 100-240 VAC; 50/60 Hz; 1A

Power Consumption 120V/7.2W; 230V/8.6W 120V/7.6W; 230V/9.0W

Direct 8 16

Max. 256 (via Daisy Chain) 512 (via Daisy Chain)

Hotkeys

Pushbuttons

2 x USB Type A F

Video 2 x HDB-15 F

Mouse 2 x 6-pin Mini-DIN F (Green)

KVM Ports 8 x RJ-45 16 x RJ-45

Daisy Chain

F/W Upgrade 1 x RJ-11

Power 3-Prong AC socket

Console Selection 2 x Pushbutton

KVM Reset 1 x Recessed pushbutton

F/W Upgrade 1 x Slide

Power 1 x Rocker

Console 2 (Orange) 2 (Orange)

Power 1 (Blue)

Station ID 1 x 2 Digit 7-segment (Orange)

Mouse PS/2; USB

Out

On Line

Selected

8 (Green) 16 (Green)

8 (Orange) 16 (Orange)

2 x USB Type A F

1 x DB-25 F

1 x DB-25 M

1280 x 1024 @ 75 Hz (50 m)

KH2508A / KH2516A User Manual

Function KH2508A KH2516A

Environment Operating Temp.

Storage Temp.

Humidity 0–80% RH

Physical Properties

Housing Metal

Weight 2.81 kg 2.85 kg

Dimensions 43.72 x 16.36 x 4.40 cm

0–50o C

-20–60o C

Appendix

Connection Tables

The following table indicates the relationship between the number of KH2508

KH2508A

KH2516A

A / KH2516A units and the number of computers that they control

No. Computers No. Computers No. Computers No. Computers

1 1 - 8 9 65 - 72 17 129 - 136 25 193 - 200

2 9 - 16 10 73 - 80 18 137 - 144 26 201- 208

3 17 - 24 11 81 - 88 19 145 - 152 27 209 - 216

4 25 - 32 12 89 - 96 20 153 - 160 28 217 - 224

5 33 - 40 13 97 - 104 21 161 - 168 29 225 - 232

6 41 - 48 14 105 - 112 22 169 - 176 30 233 - 240

7 49- 56 15 113 - 120 23 177- 184 31 241 - 248

8 57 - 64 16 121 - 128 24 185 - 192 32 249 - 256

No. Computers No. Computers No. Computers No. Computers

1 1 - 16 9 129 - 144 17 257 - 272 25 385 - 400

2 17 - 32 10 145 - 160 18 273 - 288 26 401 - 416

3 33 - 48 11 161 - 176 19 289 - 304 27 417 - 432

4 49 - 64 12 177 - 192 20 305 - 320 28 433 - 448

5 65 - 80 13 193 - 208 21 321 - 336 29 449 - 464

6 81 - 96 14 209 - 224 22 337 - 352 30 465 - 480

7 97- 112 15 225 - 240 23 353 - 368 31 481 - 496

8 113 - 128 16 241 - 256 24 369 - 384 32 497 - 512

KH2508A / KH2516A User Manual

OSD Factory Default Settings

The factory default settings are as follows:

Setting Default

OSD Hotkey [Scroll Lock] [Scroll Lock]

Port ID Display Position Upper Left Corner

Port ID Display Duration 3 Seconds

Port ID Display Mode The Port Number plus the Port Name

Scan Duration 5 Seconds

Scan/Skip Mode All

Screen Blanker OFF

Hotkey Command Mode ON

Hotkey [Num Lock] + [-]

Logout Timeout OFF

Beeper ON

Accessible Ports F (Full Access) For all Users on all Ports

Operation Mode Share

OSD Language English

Appendix

Administrator Login Failure

If you are unable to perform an Administrator login (because the Username and Password information has become corrupted or you have forgotten it, for example) you can clear the login information with the following procedure:

1. Power off the KH2508

A / KH2516A and remove its housing.

2. Short the jumper labeled J8.

3. Power on the switch.

The on screen display will show a message informing you that the password information has been cleared.

4. Power off the switch.

5. Remove the jumper cap from J8.

6. Close the housing and start the KH2508

A / KH2516A back up.

After you start back up, you can use the default Username and Password (see OSD Overview, page 23) to log in.

KH2508A / KH2516A User Manual

Troubleshooting

Overview

Operation problems can be due to a variety of causes. The first step in solving them is to make sure that all cables are securely attached and seated completely in their sockets.

In addition, updating the product’s firmware may solve problems that have been discovered and resolved since the prior version was released. If your product is not running the latest firmware version, we strongly recommend that you upgrade. See The Firmware Upgrade Utility, page 51, for upgrade details.

Symptom Action

Mouse and/or Keyboard not responding.

All Station IDs display as 01. Station 1 suddenly lost its power. Wait a few

The mouse and/or keyboard need to be reset. Unplug the cable(s) from the console port(s), then plug it (them) back in.

seconds for the system to reinitialize the station sequence and display the proper IDs.

Appendix

Limited Warranty

ALTUSEN warrants this product against defects in material or workmanship for a period of one (1) year from the date of purchase. If this product proves to be defective, contact ALTUSEN's support department for repair or replacement of your unit. ALTUSEN will not issue a refund. Return requests can not be processed without the original proof of purchase.

When returning the product, you must ship the product in its original packaging or packaging that gives an equal degree of protection. Include your proof of purchase in the packaging and the RMA number clearly marked on the outside of the package.

This warranty becomes invalid if the factory-supplied serial number has been removed or altered on the product.

This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse, abuse, negligence or modification of any part of the product. This warranty does not cover damage due to improper operation or maintenance, connection to improper equipment, or attempted repair by anyone other than ALTUSEN. This warranty does not cover products sold AS IS or WITH FAULTS.

IN NO EVENT SHALL ALTUSEN'S LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT. FURTHER, ALTUSEN SHALL NOT BE RESPONSIBLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS DOCUMENTATION. ALTUSEN SHALL NOT IN ANY WAY BE RESPONSIBLE FOR, WITHOUT LIMITATION, LOSS OF DATA, LOSS OF PROFITS, DOWNTIME, GOODWILL, DAMAGE OR REPLACEMENT OF EQUIPMENT OR PROPERTY, AND ANY EXPENSES FROM RECOVERY, PROGRAMMING, AND REPRODUCTION OF ANY PROGRAM OR DATA.

ALTUSEN makes no warranty or representation, expressed, implied, or statutory with respect to its products, contents or use of this documentation and all accompanying software, and specifically disclaims its quality, performance, merchantability, or fitness for any particular purpose.

ALTUSEN reserves the right to revise or update its product, software or documentation without obligation to notify any individual or entity of such revisions, or update.

For details about extended warranties, please contact one of our dedicated value added resellers.

KH2508A / KH2516A User Manual

This Page Intentionally Left Blank

Index

Adapter Cable Installation, 16 Adapter Cables, 11 Administrator Login Failure, 67 Auto Scanning, 28, 42

Invoking Auto Scan, 42 Pausing Auto Scan, 42 Setting the Scan Interval, 42 Stopping, 43

Benefits, 2

Components

Front View, 6 Rear View, 8

Connection Tables, 63

Daisy chaining, 17

Factory Default Settings, 66 Features, 2 Firmware Upgrade

Cable, 52 Port, 52 Recovery, 56, 57

Firmware Upgrade Mode

Invoking, 52

Front View, 6

Hardware Setup, 11 Hot Plugging, 20 Hotkey, 23

Selecting the Active Port, 41 Summary Table, 48

Hotkey Mode

Exiting, 40 Invoking, 40

Hotkey Port Control, 39

Installation

Daisy chaining, 17 Single Station, 14

Invoking Hotkey Mode, 40

Keyboard Emulation

Mac, 49

Sun, 50 Keyboard port operation, 39 Keyboard Reset, 45 KVM Adapter Cables, 5, 11 KVM Adapter Installation, 16

LEDs

Port, 7

Station ID, 7

Mouse Reset, 45

KH2508A / KH2516A User Manual

Online

Registration, iii

OSD

Factory Default Settings, 66 Functions, 26 Hotkey, 23 Main Screen Headings, 25 Navigation, 25 Overview, 23 Password, 23

Password, 23 Port

LEDs, 7 Selection, 19

Port ID

Numbering, 21

Powering Off and Restarting, 21

Rack Mounting, 13 Rear View, 8 Requirements

Computer, 4 Console, 4

KVM adapter cables, 5 Operating Systems, 5

OS Support, 5 Reset Switch, 7 RoHS, ii

Safety Instructions

General, 59

Rack Mounting, 61 Scan Duration, 28 Selecting the Active Port, 41 Setting the Auto Scan Interval, 28,

42 Setting the Scan Interval, 28 SJ/T 11364-2006, ii Skip Mode, 44 Stacking, 12 Station ID LEDs, 7

Technical Support, 62 Telephone Support, iii Troubleshooting, 68

User Notice, iii

ATEN Technology KH2516A, KH2508A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Overview

Consoles

Computers

KVM Adapter Cables

Operating Systems

Front View

KH2516A

Rear View

KH2516A

Hardware Setup

Overview

Before you Begin

Stacking

Rack Mounting

Basic Operation

Port Selection

Manual

Hotkey

Hot Plugging Stations

Hot Plugging KVM Ports

Hot Plugging Console Ports

Port ID Numbering

OSD Operation

OSD Overview

OSD Main Screen Headings

F1: GOTO

F2: LIST

F3: SET

F4: ADM

F5: SKP

F6: BRC

F7: SCAN

F8: LOUT

Hotkey Operation

Hotkey Port Control

Number Lock and Minus Keys

Control and F12 Keys

Hotkey Mode Environment

Exiting Hotkey Mode

Setting the Scan Interval

Invoking Auto Scan

Exiting Auto Scan

Entering Skip Mode

Exiting Skip Mode

Setting the Hotkey Beeper ON/OFF

Setting the OSD Hotkey combination

Restore the Default Values

Keyboard Emulation

Mac Keyboard

The Firmware Upgrade Utility

Introduction

Before You Begin

Performing the Upgrade

Upgrade Succeeded

Upgrade Failed

Firmware Upgrade Recovery

Main Board and OSD Firmware Upgrade Recovery

Adapter Cable Firmware Upgrade Recovery

Appendix

Safety Instructions

General

Rack Mounting

International

North America

KH2508A

KH2516A

Overview