Tripp Lite B024-H4U16 16-Port 4K HDMI/USB KVM Switch

Owner’s Manual

NetDirector

Rack-Mount 4K/60 Hz

HDMI KVM Switch

with Audio

8-Port Model: B024-H4U08

16-Port Model: B024-H4U16

1111 W. 35th Street, Chicago, IL 60609 USA • tripplite.com/support

Este manual está disponible en español en la página de Tripp Lite: tripplite.com

Ce manuel est disponible en français sur le site Web de Tripp Lite : tripplite.com

WARRANTY REGISTRATION

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Table of Contents

1. FCC Information 4

2. User Notice 4

3. Package Contents 4

4. Features 5

5. System Requirements 6

5.1 Console 6

5.2 Computers 6

5.3 Cables 6

5.4 Operating Systems 6

5.5 Components 7

6. Important Safety Instructions 10

6.1 General Safety Instructions 10

6.2 Rack-Mounting Safety 11

Instructions

7. Installation 12

7.1 Stacking 12

7.2 Rack Mounting 12

7.2.1 Front Rack-Mounting 12

7.2.2 Rear Rack-Mounting 14

7.3 KVM Switch Installation 16

7.3.1 Single-Stage Installation 16

7.3.2 Two-Stage Cascade Installation 17

7.3.3 Three-Stage Cascade Installation 18

7.3.4 Multi-Display Installation 20

7.3.5 Grouping Ports into Vertical 21

Channels

8. Basic Operation 22

8.1 Hot Plugging 22

8.1.1 Hot Plugging KVM Ports 22

8.1.2 Hot Plugging Console Ports 22

8.2 Port Selection 22

8.3 Port ID Numbering 22

 8.4 PoweringO󰀨andRestarting 23

the KVM

9. OSD Operation 24

9.1 OSD Login 24

9.2 OSD Hotkey 24

9.3 OSD Main Screen 25

9.4 OSD Main Screen Headings 25

9.5 OSD Navigation 26

9.6 OSD Functions 26

9.6.1 F1: Go To 26

9.6.2 F2: List 27

9.6.3 F3: Set 28

9.6.4 F4: Admin 30

9.6.5 F5: SKP 33

9.6.6 F6: BRC 34

9.6.7 F7: Scan 35

9.6.8 F8: Logout 36

10. Hotkey Operation 37

10.1 Hotkey Port Control 37

10.2 Hotkey Setting Mode (HSM) 37

10.3 Select the Active Port 38

10.4 Auto Scan Mode 38

10.5 Skip Mode 39

10.6 Keyboard / Mouse Reset 39

10.7 Hotkey Beeper Control 39

10.8 HSM Hotkey Control 40

10.9 OSD Hotkey Control 40

10.10 Port OS Control 40

10.11 Restore Default Values 04

10.12 EDID Mode 41

10.13 Mouse Emulation Control 41

10.14 HSM Summary Table 41

11. Keyboard Emulation 43

11.1 Mac Keyboard 43

11.2 Sun Keyboard 44

Table of Contents

12. RS-232 Operation 45

12.1 Setup 45

12.2 RS-232 Pin Assignments 45

12.3 Console Login: HyperTerminal 46

12.4 RS-232 Commands 47

  12.4.1 Verication 47

12.4.2 Login 47

12.4.3 Logout 48

12.4.4 Open/Close RS-232 Link 48

12.4.5 Set Baud Rate 49

12.4.6 Switch Port 49

12.4.7 Hotkey Setting 50

12.4.8 OSD Hotkey 51

12.4.9 USB Reset 51

12.4.10 Restore Default Settings 52

12.4.11 Firmware Upgrade 52

12.4.12 KVM Status 53

12.4.13 EDID Mode 54

12.4.14 Broadcast Mode 54

13. Firmware Management Utility 55

13.1 Downloading the Firmware 55

13.2 Preparation 55

13.3 Starting the Upgrade 56

13.4 Upgrade Successful 58

13.5 Upgrade Failed 58

13.6 Firmware Upgrade Recovery 58

 13.7 OSDConguration 59

Backup/Restore

13.7.1 Backup 59

13.7.2 Restore 60

14. Appendix 60

14.1 B024-H4U08 and B024-H4U16 60

Connection Tables

14.1.1 B024-H4U08 (First Level) + 60

B024-H4U08 (Second Level)

14.1.2 B024-H4U16 (First Level) + 60

B024-H4U16 (Second Level)

14.1.3 B024-H4U08 (First Level) + 61

B024-H4U08 (Second Level) +

B024-H4U08 (Third Level)

 14.2 Specications 62

14.3 Administrator Login Failure 63

14.4 Factory Default Hotkeys and 63

Settings

15. Warranty and Product 64

Registration

1. FCC Information

2. User Notice

3. Package Contents

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This

device may not cause harmful interference, and (2) this device must accept any interference received, including

interference that may cause undesired operation.

Note: 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. The user must

useshieldedcablesandconnectorswiththisequipment.Anychangesormodicationstothisequipmentnot

expressly approved by Tripp Lite could void the user’s authority to operate this equipment.

Allinformation,documentation,andspecicationscontainedinthismanualaresubjecttochangewithoutprior

noticationbythemanufacturer.Themanufacturermakesnorepresentationsorwarranties,eitherexpressedor

implied,withrespecttothecontentshereofandspecicallydisclaimsanywarrantiesastomerchantabilityortness

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

modications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. VERIFY THAT THE VOLTAGE SETTING IS CORRECT

BEFORE USE.

• NetDirector B024-H4U08 / B024-H4U16 Rack-Mount KVM Switch with Audio

• (x2) DisplayPort 1.4 Cables

• (x2) USB 3.0 Cables

• (x2) Audio Cables

• Firmware Upgrade Cable

• Foot Pad Set (4 pc.)

• Power Adapter

• North America Power Cord

• EU Power Cord

• UK Power Cord

• Owner’s Manual

Check to ensure all 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 installation.

4. Features

• One USB console controls up to eight (B024-H4U08) or sixteen (B024-H4U16) DisplayPort interface computers and

two additional USB 3.0 peripheral devices.

• Cascadable to three levels – controls up to 512 computers (B024-H4U08) or to two levels--up to 256 computers

(B024-H4U16).

• Multi-Display feature – stack up to eight units and display video to up to 8 monitors (dual-display/triple-display/quad-

display/multi-display).

• Supports DisplayPort video output and allows you to choose an appropriate video output and deploy console with

exibility.

• Superior video quality – up to 4K DCI (4096 x 2160 @ 60 Hz) resolution.

• Built-in 2-port USB 3.1 Gen 1 hub with SuperSpeed 5 Gbps data transfer rates.

• Audio enabled – full bass response provides a rich experience for 2.1 channel stereo sound.

• Supports HD audio.

• Computer selection via pushbuttons, hotkeys, OSD, and RS-232 commands.

• Independent switching of KVM and USB peripheral focus.

• Two-level (administrator/user) password authorization for enhanced security protection.

• Broadcast mode – operations can be simultaneously performed on all selected computers, such as software

installation and upgrading, systemwide shutdown, etc.

• Auto Scan Mode for monitoring all computers.

• Console mouse port emulation/bypass feature supports most mouse drivers and multifunction mice.

• Multilingual keyboard mapping – supports English (US), English (UK), German (DEUTCH), German (SWISS), French,

Hungarian,Italian,Japanese,Korean,Russian,Spanish,Swedish,TraditionalChinese,andSimpliedChinese.

• Mac/Sun keyboard support and emulation.

• Supports hot-plugging.

• HDMI compliant and HDCP 2.2 compliant.

• Multi-platform support for Windows, Linux, Mac, and Sun operating systems.

• Firmware upgradable.

• Supports multimedia, wireless keyboards and mouse.

5. System Requirements

5.1 Console

• HDMI monitor capable of the highest possible resolution in the installation

Note: For multi-display installations, multiple monitors are required. See 7.3.4 Multi-Display Installation for details.

• USB mouse

• USB keyboard

• Speakers (optional)

5.2 Computers

• An HDMI card or built-in HDMI port

Notes:

• The quality of the display is aected by the quality of the HDMI card. For best results, we recommend you purchase a

high-quality product.

• For multi-display installations, multiple monitors are required. See 7.3.4 Multi-Display Installation for details.

• USB-A port

• Audio ports (optional)

5.3 Cables

Note: The quality of the display is aected by the quality and length of the cables.

• For multi-display installations, standard USB-A to USB-B cables and standard HDMI cables are also required

Note: The B024-H4U08 and B024-H4U16 supports speaker ports only. Do not connect the microphone connector from the

KVM cable sets.

5.4 Operating Systems

OS Supported Versions

Windows Windows Server 2008, 2012, 2016, 2019 / Windows 7 SP1 / Windows 8 /

Windows 8.1 / Windows 10

Linux CentOS 7 and higher

OpenSUSE Leap 15.1

Snapshot8

10.26 and higher

Ubuntu 16.0.4 and higher

NeoKylin v7.0

Sun Sun Soloaris 11.3 and higher

Mac 10.6 and higher

Notes:

• Supports Linux Kernel 2.6 and higher.

• The B024-H4U08 and B024-H4U16 have a built-in USB 3.1 hub. They do not support PCs or operating systems that do not support

USB 3.1.

5.5 Components

Front View

B024-H4U08

B024-H4U16

No. Component Description

Port Selection

Pushbuttons

For manual port selection:

• Press a port selection pushbutton for less than two seconds to bring the KVM, USB hub

and audio focus to the computer attached to its corresponding port.

• Press a pushbutton for longer than two seconds to bring the KVM and audio focus to the

computer attached to its corresponding port.

• Press pushbuttons 1 and 2 simultaneously for 2 seconds to perform a keyboard and

mouse reset. See section 10.6 Keyboard / Mouse Reset for details.

• Press pushbuttons 7 and 8 simultaneously for 2 seconds to start Auto Scan Mode.

Port LEDs The Port LEDs are built into the Port Selection Switches. The left ones are the KVM Port

LEDs; the right ones are the USB LEDs:

KVM

• Lights DIM ORANGE to indicate the computer attached to the corresponding port is up

and running (on line).

•FlashestoindicatethatFirmwareUpgrademodeisine󰀨ect.

• Changes to BRIGHT ORANGE to indicate that the computer attached to its corresponding

port is the one that has the KVM focus (selected).

• Flashes to indicate that the computer attached to its corresponding port is being accessed

under Auto Scan mode.

USB

• Lights GREEN to indicate that the computer attached to its corresponding port is the one

that has access to the USB peripherals.

5. System Requirements

No. Component Description

Firmware

Upgrade

Recovery Switch

Duringnormaloperationandwhileperformingarmwareupgrade,thisswitchshouldbe

intheNORMALposition.Ifarmwareupgradeoperationdoesnotcompletesuccessfully,

thisswitchisusedtoperformarmwareupgraderecovery.Seesection13.6 Firmware

Upgrade Recovery for details.

Audio Jack The cables from your main speakers plug in here.

Note: The speakers plugged into the front-panel audio jack have priority over those in the rear panel.

Firmware

Upgrade Port

Thermwareupgradecablethattransfersthermwareupgradedatafromthe

administrator’s computer to the KVM switch connects to this RJ11 connector.

USB 3.1 Gen 1

Peripheral Hub

Section

USB 3.1 peripherals (printers, scanners, etc.) plug into this port (this may require an extra

power adapter).

Note: The USB 3.1 hub cannot be accessed through the switch by computers on the second level of a

cascaded installation.

Reset Button Pressing this switch performs a system reset. When the system resets, the switch beeps

andtheportLEDsashinsuccessionuntiltheresetiscomplete.Aftertheresetiscomplete,

you can login again.

Note: This switch is recessed and must be pushed with a small object, such as the end of a paper clip

or a ballpoint pen.

Power LED Lights to indicate that the switch is powered up and ready to operate.

Rear View

B024-H4U08

B024-H4U16

No. Component Description

Grounding

Terminal

The grounding wire used to ground the switch attaches here.

Power Jack The power adapter cable plugs in here.

Audio Jack The cables from your main speakers plug in here.

Note: The speakers plugged into the front panel audio jack have priority over those plugged in here.

Console Port

Section

The cables from your console HDMI monitor, USB keyboard, USB mouse and speakers plug

in here. Each connector is marked with an appropriate icon to indicate itself.

KVM Port

Sections

The cables that link the switch to your computers plug in here. Each KVM port section is

comprised of a speaker jack, a USB-B port, and HDMI connector.

5. System Requirements

1 2 3

4 5

1 2 3

4 5

6. Important Safety Instructions

6.1 General Safety Instructions

• Read all of these instructions and save them for future reference.

• Follow all warnings and instructions marked on the device.

• Do not place the device on any unstable surface. 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 protect against overheating, these openings should never be blocked or covered.

• The device should never be placed on a soft surface such as a bed, sofa or rug. Doing so will block the device’s

ventilation openings. Moreover, the device should not be placed in a built-in enclosure unless adequate ventilation has

been provided.

• Never spill liquid of any type on the device.

• Unplug the device from the wall outlet before cleaning. Use a damp cloth for cleaning. Do not use liquid or aerosol

cleaners.

• The device should be operated from the power source indicated on the marking label. If uncertain of the power

available, consult your dealer or local power company.

• The device is designed for IT power distribution systems up to 230V phase-to-phase voltage.

• As an added safety feature, the device is equipped with a 3-wire grounding type plug. If unable to insert the plug into

the outlet, contact an electrician to replace the obsolete outlet. Do not attempt to plug into a two-prong ungrounded

outlet. Always follow local/national wiring codes.

• Do not allow anything to rest on the power cord or cables. Route the power cord and cables to avoid them being

stepped on or tripped over.

• If an extension cord is used with this device, ensure the total ampere ratings of all products used on the extension

cord do not exceed its rated ampere rating. Also ensure all products plugged into the wall outlet do not exceed a total

of 15 amperes.

•Considerationshouldbegiventotheconnectionofequipmentandthesupplycircuit,aswellaswhate󰀨ect

overloading the supply circuit might have on overcurrent protection and supply wiring.

• To help protect the system from unexpected transient increases and decreases in electrical power, use a Tripp Lite

Surge Protector, Line Conditioner, or Uninterruptible Power Supply (UPS).

• Position system cables and power cables carefully so nothing rests on any cables.

• When connecting or disconnecting power to hot pluggable power supplies, observe the following guidelines:

– Install the power supply before connecting the power cable to the power supply.

– Unplug the power cable before removing the power supply.

– If the system has multiple sources of power, disconnect power from the system by unplugging all power cables from

the power supplies.

• 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reorelectricalshock.

•Donotattempttoservicethedevice;referallservicingtoqualiedservicepersonnel.

6. Important Safety Instructions

•Ifthefollowingconditionsoccur,unplugthedevicefromthewalloutletandbringittoqualied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 controls covered in the operating instructions. Improper adjustment of other controls may result in

damagethatwillrequireextensiveworkbyaqualiedtechniciantorepair.

• Do not connect the RJ11 connector marked “UPGRADE” to a public telecommunication network.

• Use of this equipment in life support applications where failure of this equipment can reasonably be expected

tocausethefailureofthelifesupportequipmentortosignicantlya󰀨ectitssafetyore󰀨ectivenessisnot

recommended.

6.2 Rack-Mounting Safety Instructions

• The ambient operating temperature in the rack may be an issue and is dependent upon the rack load and

ventilation. When installing in a closed or multi-device rack assembly, ensure the temperature will not exceed the

maximum rated ambient temperature.

•Beforeinstallingtherack,ensurethestabilizersaresecuredtotherack,extendedtotheoorandthefullweight

oftherackrestsontheoor.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withtheheaviestitemloadedintotherackrst.

• When loading the rack, avoid creating a hazardous condition due to uneven loading.

• Ensure the rack is level and stable before extending a device from the rack.

• Use caution when pressing the rail release latches or sliding a device into or out of a rack; slide rails can pinch

yourngers.

• After a device is inserted into the rack, carefully extend the rail into a locking position, 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.

•Ensurethatproperairowisprovidedtodevicesintherack.

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

• Caution! Slide/Rail (LCD KVM) mounted equipment is not to be used as a shelf or work space.

7. Installation

The B024-H4U08 and B024-H4U16 can be stacked on a desktop or rack mounted at the front or rear of a rack.

Notes:

• Allow at least 2 inches (5.1 cm) on each side for adequate ventilation and 5 inches (12.7 cm) at the rear for power cord and

cable clearance.

• The standard rack mounting kit does not include screws or cage nuts. If you need additional screws or cage nuts, contact your

rack dealer.

7.1 Stacking

The B024-H4U08 and B024-H4U16 can be placed on any level surface that can safely support the weight of the device

and the weight of the attached cables. Make sure the surface is clean and free of any materials that can block the

exhaust vents or otherwise interfere with normal operation of the switch.

To place the B024-H4U08 and B024-H4U16 (or to stack units if you are cascading them), remove the backing material

from the bottom of the rubber feet and stick them onto the bottom panel at the corners, as shown below:

7.2 Rack Mounting

7.2.1 Front Rack-Mounting

Remove each of the screws from the left and right sides near the front of the unit.

7. Installation

Use the M3 x 6 Phillips hex head screws supplied with the rack mounting kit to attach the rack mounting brackets

onto the sides near the front of the unit.

Place the KVM switch in the rack. Position it so that the holes in the mounting brackets line up with the holes in the

rack. Secure the mounting brackets to the front of the rack.

7. Installation

7.2.2 Rear Rack-Mounting

Remove each of the screws from the left and right sides near the rear of the unit.

Use the M3 x 6 Phillips hex head screws supplied with the rack mounting kit to attach the rack mounting

brackets onto the sides near the rear of the unit.

7. Installation

Place the KVM switch in the rack. Position it so that the holes in the mounting brackets line up with the holes in the

rack. Secure the mounting brackets to the rear of the rack.

7.3 KVM Switch Installation

7.3.1 Single-Stage Installation

To set up the console KVM switch, refer to the following steps and installation diagram.

Note: B024-H4U16 model shown. The port locations are the same for the B024-H4U08, except for the number of KVM ports.

Front

Rear

Ground the KVM by connecting one end of a grounding wire to the KVM’s grounding terminal and the other end

to a suitable grounded object.

Note: Do not omit this step. Proper grounding helps to prevent damage to the unit from power surges and static electricity.

Plug your USB keyboard and USB mouse into the unit’s USB console ports.

Plug your HDMI monitor(s) into the HDMI console port, then power on the monitor(s).

Plug your speakers into the audio jacks located on the unit’s front and rear panel.

Note: The speakers plugged into the front panel have priority over those plugged into the rear panel.

Use the provided cable sets (HDMI cable, USB 3.0 cable and audio cable) with this package.

Plug the HDMI connector into any available HDMI port in the KVM Ports Section of the switch

(CPU 1, CPU 2, etc.), then plug the USB 3.0 cable and audio cable into their corresponding ports.

Notes:

• Verify that all the connectors are in the same KVM Ports Section (all in CPU 1, all in CPU 2.).

• The KVMs only support audio speakers. Do not connect a KVM cable’s microphone connector to the speaker ports.

7. Installation

4 7

HDMI Cable

7. Installation

At the other end of the cables from step 5, plug the DisplayPort cable, USB 3.0 cable, and audio cables into their

respective ports on the computer. Repeat steps 5 and 6 for other PC systems you are installing.

(Optional) Plug your USB peripherals into the USB Type-A ports in the USB 3.1 Gen1 Peripheral Hub located on

the unit’s front panel.

Plug the power adapter that came with your switch into an AC power source, then plug the power adapter cable

into the KVM’s power jack.

Power on the computers.

Note: Make sure all computers and devices connected to the KVM are also properly grounded.

7.3.2 Two-Stage Cascade Installation

To control even more computers, additional KVM switches can be cascaded from the KVM ports of the First Stage unit.

The cascaded KVMs that connect back to the First Stage unit are considered Second Stage units. As many as 128

(B024-H4U08) or 256 (B024-H4U16) computers can be controlled in a complete two-stage installation. Tables showing

the relation between the number of computers and the number of units needed to control them is provided in section

14.1 B024-H4U08 and B024-H4U16 Connection Tables.

4 5

USB HDMI

KVM Cable Set

7. Installation

Make sure that power to all the devices you will be connecting—including all preexisting devices on the

installation—hasbeenturnedo󰀨.

Use the provided cable sets (HDMI cable, USB 3.0 cable, and audio cable) to connect the First Stage unit to the

console ports of the Second Stage unit.

Note: Plug the USB Type-A connector into the lower USB (keyboard) port in the Console section (they are both marked with a

similar icon to remind you of the correct USB port).

Using another provided cable set (HDMI cable, USB 3.0 cable and audio cable), plug the HDMI connector into any

available HDMI in the KVM Ports Section of the second stage switch, then plug the accompanying USB Type-B

cable and audio cable into their corresponding USB and audio jacks.

Notes:

• Verify all connectors are in the same KVM Ports Section (all in CPU 1, all in CPU 2, etc.) and that each port is marked with an

appropriate icon to indicate itself.

• The KVMs only support audio speakers. Do not connect a KVM cable’s microphone connector to the speaker ports.

At the other end of the cables from step 3, plug the HDMI cable, USB 3.0 cable and audio cables into their

respective ports on the computer.

Repeat steps 3 and 4 for any other PC systems you are installing.

For each Second Stage unit, plug the power adapter cable into its Power Jack, then plug the power adapter into an

AC source.

Plug the First Stage unit’s power adapter cable into its Power Jack, then plug the power adapter into an AC source.

Power on the computers.

Notes:

• The power-on sequence requires that Second Stage units be powered on rst. After they are all powered on, the First Stage units

must be powered on next. Only after all KVM switches have been powered on in this sequence can the computers be powered on.

• The USB 3.1 hub cannot be accessed through the switch by computers on the second level of a cascaded installation.

• Make sure the computers and devices connected to the KVMs are also properly grounded.

7.3.3 Three-Stage Cascade Installation

The procedures for setting up a three-stage installation are essentially the same as for a two-stage installation. Using

the B024-H4U08 in a three-stage setup, as many as 512 computers can be controlled in a complete installation. A table

showing the relation between the number of computers and the number of switches needed to control them can be

found in section 14.1 B024-H4U08 and B024-H4U16 Connection Tables.

Notes:

• The B024-H4U08 cannot be cascaded beyond the third level and the B024-H4U16 cannot cascaded beyond the second level.

• The B024-H4U08 can only be cascaded with other B024-H4U08 units. The B024-H4U16 can only be cascaded with other

B024-H4U16 units.

7. Installation

USB HDMI

KVM Cable Set

USB HDMI

KVM Cable Set

Onceyouhavenishedcablingup(seesection7.3.2 Two-Stage Cascade Installation), power up according to the

following sequence:

For each Third-Stage unit, plug the power adapter cable into the switch’s Power Jack, then plug the power adapter

into an AC source.

For each Second-Stage unit, plug the power adapter cable into the switch’s Power Jack, then plug the power

adapter into an AC source.

Plug the First-Stage unit’s power adapter cable into its Power Jack, then plug the power adapter into an AC source.

Power on the computers.

Notes:

• The Power On sequence requires that all Third-Stage units be powered on rst. After they are all on, the Second-Stage units must

be powered on next. After the Second-Stage units are on, the First-Stage units must be powered on last. Only after all the switches

have been powered on in this sequence, can the computers be powered on.

• The USB 3.0 hub cannot be accessed through the switch by computers on the second or third level of a cascaded installation.

• Make sure the computers and devices that the B024-H4U08 / B024-H4U16 connects to are also properly grounded.

7. Installation

7.3.4 Multi-Display Installation

The B024-H4U08 and B024-H4U16 multi-display feature allows you to stack up to 8 units in a dual/triple/quad-display/

multi-displayinstallationtocontroluptoseven(B024-H4U08)orfteen(B024-H4U16)computersatonce.This

installationrequiresslightlydi󰀨erentcablingthanthestandardcascadeando󰀨ersanextralevelofswitchingexibilityfor

multiple-monitor installations where each computer is equipped with multiple video cards.

Note: In a multi-display installation, the B024-H4U08 can only be connected to B024-H4U08 units, and the B024-H4U16 can only be

connected to B024-H4U16 units.

Computers with

2/3/4 video inputs

First Switch

HDMI cables

USB Type B to

Type A cable

Second Switch

Third / Fourth

Stage Units

Use a standard USB Type-A to USB Type-B cable to connect the Port 8 USB Type-B port on the First-Stage unit to

the USB Type-A port in the Console Ports Section of the second switch.

Notes:

• Port 8 is reserved to connect the units in a multi-display installation. Up to seven (B024-H4U08) or fteen (B024-H4U16)

computers can be attached, using KVM ports 1–7 (B024-H4U08) or ports 1–7/9–16 (B024-H4U08).

• Plug the USB Type-A connector into the lower USB (keyboard) Port in the Console Port Section. Both USB Ports are marked

with a similar icon to remind you of the correct USB port.

Use HDMI cables to connect the KVM’s DisplayPort on the second unit to the second video-in port on the computers.

Note: Only DisplayPort video cables are necessary–all other ports in the KVM section are not required in this installation.

Connect a display to the console section of the second switch.

Repeat steps 1-3 for any additional units for a total of up to a total of 8 switches.

 Connectthecablesfortherstswitch(seesection7.3.1 Single-Stage Installation for details). All video, audio and

peripheraldevicesmustbeconnectedtotherstswitch.

 PoweruptheKVMunits,startingwiththerstswitch,thenpoweronthecomputers.

Note: Make sure the computers and devices connected to the KVMs are also properly grounded.

7. Installation

7.3.5 Grouping Ports into Vertical Channels

Once the cables have been connected and multi-display mode has been selected in the OSD, the KVM will auto-detect

the channels and display modes. Users can then assign them a channel number as the port name so all the Port 1s

become Channel 1, all the Port 2s become Channel 2, ... , and all the Port 7s become Channel 7. The ports will all be

switched at the same time, channel by channel.

Dependingonthenumberofstagesinyourstack,theKVMinstallationo󰀨ersdualdisplay(twostages),tripledisplay

(three stages), quad display (four stages) or multi-display (up to 8 stages) scenarios. For reference purposes, the

example below shows a four-stage installation with quad display functionality.

Ch1

Ch7 Ch6

First

Switch

Second

Switch

Third

Switch

Fourth

Switch

8. Basic Operation

8.1 Hot Plugging

The B024-H4U08 and B024-H4U16 KVMs support hot-plugging where components can be removed and added back

into the installation by unplugging their cables from the ports without needing to shut the unit down. In order for hot

plugging to work properly, the procedures described below must be followed:

8.1.1 Hot Plugging KVM Ports

InorderfortheOSDmenustocorrespondtoKVMportchanges,youmustmanuallyreconguretheOSDtoreectthe

new port information (see 9.6.3 F3: Set and 9.6.4 F4: Admin for details).

Note: If the computer’s operating system does not support hot plugging, this function may not work properly.

8.1.2 Hot Plugging Console Ports

The keyboard, monitor and mouse can all be hot plugged. When hot plugging the mouse:

• You may unplug and re-plug the mouse (e.g. to reset the mouse), as long the same mouse is used.

•Ifplugginginadi󰀨erentmouse,allcomputersontheinstallationmustbeshutdownfor10seconds,thenrestarted

following the power up sequence described under Steps 6, 7, and 8 in section 7.3.2 Two-Stage Cascade Installation.

Note: If after hot-plugging there is no response to keyboard and/or mouse input, perform a Keyboard and Mouse Reset by

simultaneously pressing the 1 and 2 front panel pushbuttons.

8.2 Port Selection

The KVMs provide four port-selection methods to access the computers in the installation: Manual, an OSD

(on-screen display) menu system, Hotkeys, and RS-232 commands.

• For OSD (on-screen display), see section 9. OSD Operation for more information.

• For Hotkeys operation, see section 10. Hotkey Operation for more information.

• For RS-232 commands, see section 12. RS-232 Operation for more information.

Manual Port Switching

Use the front panel pushbutton switches to manually switch to a port.

8.3 Port ID Numbering

Each port on the KVM installation is assigned a unique Port ID. You can directly access any computer on any level of

the installation by specifying the Port ID that the computer is connected to–either with the OSD (see 9. OSD Operation),

or with the Hotkey port selection method (see 10. Hotkey Operation).

• A computer attached to a primary unit has a two-digit Port ID (from 01–08 for the B024-H4U08, or 01–16 for the

B024-H4U16) that corresponds to the KVM port number it is connected to.

• A computer attached to a secondary unit has a four-digit Port ID.

ThersttwodigitsrepresenttheKVMportnumberontheprimaryunitandthesecondtwodigitsrepresenttheKVM

port number on the secondary unit the computer is connected to. For example, a Port ID of 02 to 08 would refer to a

computer connected to KVM port 8 of a secondary unit that links back to KVM port 2 of the primary unit.

8. Basic Operation

8.4 Powering Off and Restarting the KVM

Ifitbecomesnecessarytopowero󰀨aKVMswitch,dothefollowingbeforerestartingit:

Unplug the KVM from its power source.

Shut down all computers that are attached to it.

Note: Unplug the power cords of any computers that have the Keyboard Power On function. Otherwise, the KVM will continue to

receive power from the computers.

Wait 10 seconds, then plug the KVM back into its power source.

Power on the computers.

Note: If there are stations cascaded down from the primary KVM, all the cascaded stations and the computers attached to them must

be shut down as well.

9. OSD Operation

The on-screen display (OSD) is a mouse- and keyboard-enabled, menu-driven method to handle computer control

and switching operations. All procedures start from the OSD main screen.

9.1 OSD Login

The OSD incorporates a two-level (administrator/user) password system. Before the OSD main screen displays, a

login.Onceyouhaveloggedinforthersttime,youwillbeaskedtochangethepasswordforsecuritypurposes.

Please follow the on-screen instructions to set your new password. The OSD main screen displays 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) as desired. If the password function has been set, you must

provide an appropriate administrator/user password in order to access the OSD.

9.2 OSD Hotkey

You can display the OSD on the console monitor while also viewing the display of any port on the KVM by pressing

the [Scroll Lock] key twice.

Note: You can optionally change the OSD hotkey to the Ctrl key, in which case you would press [Ctrl] twice (see 9.2 OSD

Hotkey). With this method, you must press the same [Ctrl] key.

9. OSD Operation

9.3 OSD Main Screen

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

Notes:

• The diagram depicts 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.

• The OSD always starts in list view, with the highlight bar at the same position it was in the last time it was closed.

• Only the ports that have been set accessible by the administrator for the current logged in user are visible.

• Enable Mouse Emulation to operate the OSD using the mouse. When the Mouse Emulation is disabled, you can only operate the

OSD using the keyboard.

• To enable the Mouse Emulation via OSD, refer to “Mouse Emulation” in the table in section 9.6.4 F4: Admin for details.

• To enable the Mouse Emulation via hotkeys, see section 10.14 Mouse Emulation Control.

• If the port list is collapsed, click on a switch number or move the highlight bar to it, then press the [Enter] key to expand the list.

Similarly, to collapse a switch’s port list, click on the switch number or move the highlight bar to it, then press the [Enter] key to

collapse the list.

9.4 OSD Main Screen Headings

PN This column lists the port ID numbers for all the KVM ports on the installation. The simplest method to

access a particular computer is to move the highlight bar to it, then press [Enter].

QV Ifaporthasselectedforquickviewscanning,acheckmark(√)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, its name appears in this column.

9. OSD Operation

9.5 OSD Navigation

• To dismiss the menu and deactivate OSD, click at the upper right corner of the OSD window or press [Esc].

• To log out, click

at the left of the main screen, or press [F8].

• To move up or down through the list one screen at a time, click the up and down arrow symbols or use the

[Pg Up] and [Pg Dn] keys. If there are more list entries than what can appear on the main screen, the screen will scroll.

• To activate a port, click it or move the highlight bar to it, then press [Enter].

• After executing any action, you automatically return to the menu one level above.

9.6 OSD Functions

OSDfunctionsareusedtocongureandcontroltheOSD.Forexample,youcanrapidlyswitchtoanyport,scan

selected ports, 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:

Eitherclickonthefunctionkeyeldontheleftofthemainscreenorpressafunctionkeyonthekeyboard.

In the submenus that appear, make your choice either by clicking it or moving the highlight bar to it and pressing

[Enter].

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

9.6.1 F1: Go To

Clicking or pressing [F1] activates the Go To function. Go To allows you to switch directly to a port by

keying in the port’s ID. Enable mouse emulation for this function to work.

• To use the search method, key in the Port ID then press [Enter] to switch KVM, audio and USB focus, or [Spacebar]

to switch KVM and audio only.

9. OSD Operation

9.6.2 F2: List

Clicking or pressing [F2] activates the List function. This function lets you broaden or narrow the scope of

which ports the OSD displays on the main screen. The submenu choices and their meanings are provided in the table below.

Choice Meaning

ALL Lists all ports in the installation that have been set accessible by the administrator for

the current logged in user.

Quick View Lists only the ports that have been selected as quick view ports.

Powered On Lists only the ports that have their attached computers powered on.

Quick View + Powered On Lists only the ports that have been selected as quick view ports and that have their

attached computers powered on.

Movethehighlightbartothechoiceyouwant,thenpress[Enter].Acheckmark(√)appearsbeforethechoiceto

indicate that it is the currently selected one.

9. OSD Operation

9.6.3 F3: Set

Clicking or pressing [F3] activates the Set function. This function allows the administrator and each user to

setuptheirownworkingenvironment.AseparateproleforeachisstoredbytheOSDandisactivatedaccordingtothe

username that was provided during login.

To change a setting:

Click it or move the highlight bar to it, then press [Enter].

After you select an item, a submenu with further choices appears. To make a selection, either click it or move the

highlightbartoit,thenpress[Enter].Acheckmark(√)appearsbeforetheselectedchoicetoindicatewhichoneitis.

The settings are explained in the following table:

Setting Function

OSD Hotkey Selects which hotkey activates the OSD function:

[Scroll Lock] [Scroll Lock] or [Ctrl] [Ctrl].

Sincethe[Ctrl]keycombinationmayconictwithprogramsrunningonthecomputers,

the default is the [Scroll Lock] combination.

Port ID Display Position Allows each user to customize the position where the port ID appears on the screen.

The default is the upper left corner, but users can choose to have it appear anywhere on

the screen.

Use the mouse or the arrow keys plus Pg Up, Pg Dn, Home, and End (on the numeric

keypadwithNumLocko󰀨).Arrowkeysmovethepositiononespaceatatime.PgUp

and Pg Dn brings the position to the top or bottom. Home and End brings the position to

the rightmost and leftmost of the screen. To position the port ID display, single-click or

press [Enter] to lock the position and return to the Set submenu.

Port ID Display Duration Determines how long a port ID displays on the monitor after a port change has taken

place.Thechoicesare:3Seconds(default)andAlwaysO󰀨.

Port ID Display Mode Selects how the port ID is displayed:

The port number plus the port name (Port Number + Port Name) (default), the port

number alone (Port Number) or the port name alone (Port Name).

9. OSD Operation

Setting Function

Scan Duration Determines how long the focus dwells on each port as it cycles through the selected

ports in Auto Scan mode (see 9.6.7 F7: Scan). Key in a value from 1 to 255 seconds,

then press [Enter].

Default is 5 seconds; a setting of 0 disables the SCAN function.

Note: We recommend to set the scan duration to 10 seconds.

Scan/Skip Mode Selects which computers will be accessed under skip mode (see 9.6.5 F5: SKP), and

Auto Scan mode (see 9.6.7 F7: Scan). Choices are:

ALL - All the ports which have been set accessible.

QUICK VIEW - Only those ports which have been set accessible and have been

selected as quick view ports.

POWERED ON - Only those ports which have been set accessible 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.

Note: The quick view choices only appear on the administrator’s screen, since only the

adminstrator has Quick View setting rights.

Screen Blanker 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 to 30 minutes, then press [Enter]. The default

setting of 0 disables this function. The screen will be blanked in the amount of time set

(counting from the moment when OSD is closed).

Hotkey Command Mode Enables/disablesthehotkeycommandfunctionincaseaconictwithprograms

running on the computers occurs.

Hotkey Sets the keyboard shortcut for invoking Hotkey Mode (see 10.2 Hotkey Setting Mode).

Choices are: [NUM LOCK] + [-] (minus) (default), and [CTRL] + [F12].

OSD Language Sets the language used in the OSD. Choices are: English (Default), German, Japanese,

SimpliedChinese,TraditionalChinese,Spanish,FrenchandRussian.

9. OSD Operation

9.6.4 F4: Admin

Clicking or pressing [F4] activates Admin function. F4 is an administrator-only function. It allows the

administratortocongureandcontroltheoveralloperationoftheOSD.Tochangeasetting,clickonthesettingsitem

youwanttocongure,orusetheupanddownarrowkeystomovethehighlightbartoitandpress[Enter].

After you select an item, a submenu with further choices appears. Click an item, or move the highlight bar to it then

press[Enter].Acheckmark(√)appearsbeforetheselecteditemsothatyouknowwhichoneitis.Thesettingsare

explained in the following table:

9. OSD Operation

Setting Function

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

1. Usernames and passwords for one administrator and four users can be set.

2. Afteryouselecttheadministratoreldoroneoftheuserelds,aeldthatallowsyou

to key in the username and password appears. Usernames and passwords can be

from 1 to 16 characters long and can consist of any combination of letters and numbers

(A–Z, 0–9) and some additional keys (* ( ) + : - , ?. / space).

3. Foreachindividual,keyintheusernameandpassword,conrmthepassword,choose

SAVE, then press [Enter].

4. To modify or delete a previous username and/or password, use the backspace key to

erase individual letters or numbers. Press [Enter] when done.

Note: Usernames and passwords are not case sensitive. Usernames are displayed in capital letters

in the OSD.

Set Accessible Ports Thisfunctionallowstheadministratortodene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 blank. Repeat until all access rights have been

set, then press [Enter]. The default is F for all users on all ports.

Notes:

• A blank setting means that no access rights are granted. The port will not show up on the user’s

LIST on the main screen.

• The administrator always has full access to all ports.

Set Logout Timeout If there is no input from the console for the amount of time set with this function, the user

is automatically logged out. A login is necessary before the console can be used again.

This enables other users to gain access to the computers when the original user is no

longer accessing them, but has forgotten to log out. To set the timeout value, key in a

number from 1 to 180 minutes, then press [Enter]. The default setting of 0 disables this

function.

Note: This feature does not function if Set Login Mode is disabled.

Edit Port Names To help remember which computer is attached to a particular port, every port can be given

a name. This function allows the administrator to create, modify, or delete port names.

To edit a port name:

1. Click the port or use the navigation keys to move the highlight bar to it.

2. Key in the new port name or modify/delete the old one. The maximum number of

characters allowed for the port name is 12.

Legal characters include:

• All alpha characters: A–Z

• All numeric characters: 0–9

• * ( ) + : - , ? . /

Case does not matter. The OSD displays the port name in all capitals, no matter how

they are keyed in.

3. Whenyouhavenishedediting,press[Enter]tohavethechangetakee󰀨ect.Toabort

the change, press [Esc].

Restore Default Values This function is used to undo all changes and return the setup to the original factory default

settings (see 14.4 Factory Default Hotkeys and Settings), except for the port name list,

username and password information, which are saved.

Clear The Name List This function clears the port name list.

Activate Beeper ChoicesareY(on),orN(o󰀨).Whenactivated,thebeepersoundswheneveraportis

changed, when activating the Auto Scan function (see 9.6.7 F7: Scan) or an invalid entry

is made on an OSD menu. The default is Y.

9. OSD Operation

Setting Function

Set Quick View Ports This function lets 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 and press [Spacebar].

•Whenaporthasbeenselectedasaquickviewport,acheckmark(√)displaysinthe

QV column of the LIST on the main screen. When a port is deselected, the check mark

(√)disappears.

• If one of the quick view options is chosen for the LIST view (see 9.6.2 F2: List), 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, only a port that has been

selected here will be auto-scanned.

The default has no ports selected for quick view.

Set Operating System Thisfunctionallowstheadministratortodenetheoperatingsystemforthecomputer

connected to each KVM port. The default setting is Win (PC compatible).

To set the port operating system:

1. From the list, select the port for which you wish to set the computer’s operating system.

2. Set the operating system by pressing [Spacebar] to cycle through Win, MAC, SUN,

or Other.

3. Press [Esc] to exit. The operating system you selected is assigned to the KVM port.

Firmware Upgrade InordertoupgradeKVM’s,youmustrstenableFirmwareUpgrademodewiththissetting.

Whenyoubringupthismenu,thecurrentrmwareversionlevelsaredisplayed.SelectY

to enable Firmware Upgrade mode, or select [Esc] to leave this menu without enabling it.

Keyboard Language Sets the language for the computer keyboard attached to the KVM port. To select a

keyboard language, single-click it or use the navigation keys to move the highlight bar to

it and press [Enter].

Choices are: Auto (default), (US) English, (UK) English, German (Deutch), German

(Swiss), French, Hungarian, Italian, Japanese, Korean, Russian, Spanish, Swedish,

TraditionalChinese,andSimpliedChinese.

Mouse Emulation Enables / disables the mouse emulation function.

Note: This function is supported in the rst level of an installation only. Enable mouse emulation to

perform any independent switching of a port and for Auto Scan Mode or Skip Mode to work.

Activate Multi-Display Enables multi-display mode for dual, triple, quad, or multi-display mode in multiple-monitor

installations,whereeachcomputeristtedwithmultiplevideocards(see7.3.4 Multi-

Display Installation for details).

Note: Multi-display mode must be enabled on the OSD before the cables are connected.

OSDCongBack/

Restore

EntersOSDCongurationBackup/Restoremode.TheFirmwareManagementUtility

letsyoubackupthecurrentOSDcongurationoftheKVMswitchandrestoreitwhen

necessary.StoringtheOSDcongurationsettingsisusefulwhendeployingmorethan

one installation that uses the same settings (see 13.7OSDCongurationBackup/

Restore for details).

Set Login Mode This function allows the administrator to request users to log in 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.

9. OSD Operation

9.6.5 F5: SKP

Clicking or pressing [F5] invokes Skip (SKP) mode. This function lets you easily skip backward or forward

and switch the console focus from the currently active computer port to the previous or next accessible one.

Note: Mouse emulation must be enabled for Skip mode to work.

• The selection of computers available for skip mode switching is made with the Scan–Skip mode setting under the F3:

SET function (see 9.6.3 F3: Set for details).

• When you are in skip mode:

Press[←]toskiptothepreviousaccessibleportonthelist.

Press[→]toskiptothenextaccessibleportonthelist.

Press[↑]toskiptothepreviousaccessibleport.Ifthepreviousaccessibleporthascascadedaswitch,thenitskips

to the last accessible port of that switch.

Press[↓]toskiptothenextaccessibleport.Ifthenextaccessibleporthascascadedaswitch,thenitskipstotherst

accessible port of that switch

Note: When skipping, you will only skip to the previous or next accessible computer that is in the Scan/Skip mode selection (refer

to Scan/Skip mode in the table in section 9.6.3 F3: Set for details).

•IfaporthasbeenselectedforScan/Skipmode,whenthefocusswitchestothatport,asetof[↑],[↓],[←],[→]

symbols appear before its port ID displays.

•Whileskipmodeisine󰀨ect,theconsolewillnotfunctionnormally.Youmustexitskipmodeinordertoregaincontrol

of the console.

• To exit skip mode, press [Spacebar] or [Esc].

9. OSD Operation

9.6.6 F6: BRC

F6 is an administrator-only function. Clicking or pressing [F6] invokes Broadcast (BRC) mode. When this

functionisine󰀨ect,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 systemwide shutdown, installing or upgrading software, etc

WhileBRCmodeisine󰀨ect:

• A speaker symbol appears before the port ID display of the port that currently has the console focus.

• The mouse will not function normally. You must exit BRC mode in order to regain control of the mouse.

To exit BRC mode:

•InvoketheOSD(withtheOSDhotkey),thenclicktheF6eldorpress[F6]toturnBRCmodeo󰀨.

•WhenBRCmodeisine󰀨ect,theScrollLockLEDashes.Itstopsashingandrevertstonormalstatuswhenyou

exit BRC.

9.6.7 F7: Scan

Clicking or pressing [F7] invokes Auto Scan mode. This function allows you to automatically switch among the available

computers at regular intervals so that their activity can be monitored without the inconvenience of switching yourself.

Note: Mouse emulation must be enabled for Auto Scan to work.

• The selection of computers to be included for auto-scanning is made with the Scan/Skip mode setting under the F3:

SET function (refer to Scan/Skip mode in the table in section 9.6.3 F3: Set for details).

• The amount of time that each port displays is set with the Scan Duration setting under the F3: SET function (refer to

Scan Duration in the table in section 9.6.3 F3: Set for details). To stop at a particular location, press the [Spacebar] to

stop scanning.

•Ifthescanningstopsonanemptyportoronewherethecomputerisattachedbutispoweredo󰀨,themonitorscreen

willbeblankandthemouseandkeyboardwillhavenoe󰀨ect.AftertheScanDurationtimeisup,thescanfunctionwill

move on to the next port.

• As each computer is accessed, an S appears in front of the port ID display to indicate it is being accessed under Auto

Scan mode. When the port ID with the symbol displays, the background screen is blank.

•WhileAutoScanmodeisine󰀨ect,theconsolewillnotfunctionnormally.YoumustexitAutoScanmodeinorderto

regain control of the console.

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

9. OSD Operation

9.6.8 F8: Logout

Clicking or pressing [F8] logs you out of OSD control of the computers and blanks the console screen.

Thisisdi󰀨erentfromsimplypressing[Esc]whenyouareatthemainscreentodeactivatetheOSD.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.

Notes:

• When you reenter the OSD after logging out, the screen stays blank except for the OSD main screen. You must input your

username and password before you can continue.

• 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 main OSD screen.

10. Hotkey Operation

10.1 Hotkey Port Control

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

The B024-H4U08 and B024-H4U16 provides the following hotkey port control features:

• Selecting the Active Port

• Auto Scan Mode Switching

• Skip Mode Switching

• Computer Keyboard / Mouse Reset

• Enable / Disable Mouse Emulation

The following settings can also be controlled in Hotkey Setting Mode (HSM):

• Setting the Beeper

• Setting the HSM Hotkey

• Setting the OSD Hotkey

• Setting the Port Operating System

• Restoring the OSD Default Values

• Setting the EDID Mode

• Setting the Video DynaSync Mode

Notes:

• Mouse emulation must be enabled to perform independent switching of a port and for Auto Scan Mode or Skip Mode to work.

• To enable the Mouse Emulation via OSD, refer to “Mouse Emulation” in the table in section 9.6.4 F4: Admin for details.

• To enable the Mouse Emulation via hotkeys, see section 10.14 Mouse Emulation Control.

10.2 Hotkey Setting Mode (HSM)

HotkeySettingModeisusedtosetupyourKVMswitchconguration.AlloperationsbeginwithinvokingHotkey

Setting Mode (HSM).

Invoking HSM

To invoke HSM:

Press and hold down [Num Lock].

Press and release [-].

Release [Num Lock].

Hold down the [Ctrl] key.

Press and release the [F12] key.

Release the [Ctrl] key.

When HSM 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.

• Pressing [Esc] exits HSM.

10. Hotkey Operation

10.3 Select the Active Port

Each KVM port is assigned a port ID (see section 8.3 Port ID Numbering). You can directly access any computer on

theinstallationwithahotkeycombinationthatspeciestheportIDoftheKVMportthatacomputerisconnectedto.To

access a computer using hotkeys:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

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 the wrong number.

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

exit HSM.

Note: In HSM, 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 HSM.

Hotkey Action

[PN] [Enter] Brings the KVM, USB hub and audio focus to the computer attached to the port

correspondingtothespeciedPortID.

[PN] [K] [Enter] BringsonlytheKVMandaudiofocustothecomputerattachedtothespeciedport.TheUSB

hub and audio focus remain where they are.

[PN] [U] [Enter] BringsonlytheUSBhubfocustothecomputerattachedtothespeciedport.TheKVMand

audio focus remain where they are.

Note: The [PN] stands for the computer’s Port ID number (1, 2, 3, or 4) (see section 8.3 Port ID Numbering for details). Replace the

[PN] with the appropriate Port ID when entering Hotkey combinations.

10.4 Auto Scan Mode

Auto Scan automatically switches at regular intervals among all the KVM ports that have been set as accessible under

Scan–Skip Mode so their activity can be monitored automatically (refer to Scan/Skip mode in the table in section 9.6.3

F3: Set for details).

Invoking Auto Scan

To start Auto Scan, key in the following Hotkey combination:

Enable mouse emulation. To enable the Mouse Emulation via OSD, refer to “Mouse Emulation” in the table

in section 9.6.4 F4: Admin for details. To enable the Mouse Emulation via hotkeys, see section 10.14 Mouse

Emulation Control.

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [A]. After you press A, then press [Enter]. You will automatically exit HSM and enter Auto Scan mode.

• While 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. During the time that auto-scanning is paused, the command line will

display: AUTO SCAN: PAUSED.

Pausing when you want to keep the focus on a particular computer is more convenient than exiting Auto Scan

modebecausewhenyouresumescanning,youstartfromwhereyoulefto󰀨.Ifontheotherhand,youexitedand

restarted,scanningwouldstartoverfromtheveryrstcomputerontheinstallation.

 ToresumeAutoScanning,pressanykeyorleftclick.Scanningcontinuesfromwhereitlefto󰀨.

•WhileAutoScanmodeisine󰀨ect,ordinarykeyboardandmousefunctionsaresuspended–onlyAutoScanmode

compliant keystrokes and mouse clicks can be input. You must exit Auto Scan mode in order to regain normal

control of the console.

To exit Auto Scan mode, press [Esc] or [Spacebar]. Auto-scanning stops when you exit Auto Scan mode.

Note: Enable mouse emulation to perform any independent switching of a port and for Auto Scan Mode or Skip Mode to work (see

section 10.14 Mouse Emulation Control).

10. Hotkey Operation

10.5 Skip Mode

This feature allows you to switch between computers in order to monitor them manually. You can dwell on a particular

portforaslongasyoulike–asopposedtoauto-scanning,whichautomaticallyswitchesafteraxedinterval.

To invoke Skip mode, key in the following hotkey combination:

Enable mouse emulation (see 10.13 Mouse Emulation Control).

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Keyin[↑],[↓],[←],or[→].

• After you press an arrow key, you automatically exit HSM and enter Skip mode where you can switch ports as

follows:

← Skips to the previous accessible port (see Scan/Skip mode in the table in section 9.6.3 F3: Set for details

for information regarding accessible ports.)

→ Skips to the next accessible port.

↑ Skips to the previous accessible port. If the previous accessible port has cascaded a switch, then it skips to

the last accessible port of that switch.

↓ Skipstothenextaccessibleport.Ifthenextaccessibleporthascascadedaswitch,thenitskipstotherst

accessible port of that switch.

• Once you are in Skip mode, you can continue skipping by pressing the arrow keys. You do not need to use the

[Num Lock] + [-] combination again.

•WhileSkipmodeisine󰀨ect,ordinarykeyboardandmousefunctionsaresuspended–onlySkipmodecompliant

keystrokes can be input. You must exit Skip mode in order to regain normal control of the console.

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

Note: Enable mouse emulation to perform any independent switching of a port and for Auto Scan Mode or Skip Mode to work (see

10.14 Mouse Emulation Control).

10.6 Keyboard / Mouse Reset

If the keyboard or mouse cease to function on the computer connected to the currently selected port, you can perform

a keyboard / mouse reset on the computer. This function is essentially the same as unplugging and replugging the

keyboard and mouse on the target computer. To perform a computer keyboard / mouse reset, key in the following hotkey

combination:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [F5].

After you press [F5] you automatically exit HSM 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 console

keyboard and mouse reset.

10.7 Hotkey Beeper Control

The beeper (see “Activate Beeper” in the table in section 9.6.4 F4: Admin)canbehotkeytoggledonando󰀨.Thedefault

setting is enabled. To toggle the beeper, key in the following hotkey combination:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [B].

Afteryoupress[B],thebeepertogglesonoro󰀨.ThecommandlinedisplaysBEEPERONorBEEPEROFFforone

second, then disappears and you will automatically exit HSM.

10. Hotkey Operation

10.8 HSM Hotkey Control

The HSM Hotkey (see “Hotkey” in the table in section 9.6.3 F3: Set) can be toggled between [Num Lock] + [-], and [Ctrl]

+ [F12]. To toggle the HSM Hotkey:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [H].

After you press [H], the command line displays HOTKEY HAS BEEN CHANGED for one second, then disappears and

you will automatically exit HSM.

10.9 OSD Hotkey Control

The OSD Hotkey (see “OSD Hotkey” in the table in section 9.6.3 F3: Set) can be toggled between [Scroll Lock], [Scroll

Lock] and [Ctrl], [Ctrl]. To toggle the OSD Hotkey, key in the following hotkey combination:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [T].

After you press [T], the command line displays HOTKEY HAS BEEN CHANGED for one second, then disappears and

you will automatically exit HSM.

10.10 Port OS Control

A port’s operating system can be changed to match that of the computer attached to the port. To change a port’s

operating system, key in the following hotkey combination:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Key in [F1], [F2], or [F3], the Function of [F1], [F2], and [F3] keys is listed in the following table:

Key Description

F1 Sets the Port OS to Windows

F2 Sets the Port OS to Mac

F3 Sets the Port OS to Sun

After pressing a function key, you will automatically exit HSM.

10.11 Restore Default Values

This administrator-only hotkey restores the KVM’s default values (see 14.4 Factory Default Hotkeys and Settings). To

restore the default values, key in the following hotkey combination:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [R].

Press [Enter].

After you press [Enter], the command line displays RESET TO DEFAULT SETTING for one second, then disappears

and you will automatically exit HSM.

10. Hotkey Operation

10.12 EDID Mode

TocongureanEDIDmodefortheKVM:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [V].

Key in [1], [2], [3], or [4]. The Function of [1], [2], [3], and [4] keys is listed in the following table:

Key Description

1 Sets the switch to read DisplayPort monitor’s EDID (Default)

2 Default monitor’s EDID 1920 x 1080 @ 60 Hz

Press [Enter]. After pressing [Enter], you will automatically exit HSM.

10.13 Mouse Emulation Control

The default setting is enabled. To disable:

Invoke HSM with the [Num Lock] + [-] or [Ctrl] + [F12] combination.

Press [M].

This procedure is a toggle. Repeat to enable.

Note: Enable mouse emulation to perform any independent switching of a port and for Auto Scan Mode or Skip Mode to work.

10.14 HSM Summary Table

After invoking HSM (see 10.2 Hotkey Setting Mode), key in one of the following keys to perform the corresponding function:

Key Function

[PN] [Enter] Switches KVM, audio and USB focus directly to the computer that corresponds to that port ID

(PN = port number).

[PN] [K] [Enter] Switches KVM and audio focus directly to the computer that corresponds to that port ID

(PN = port number).

[PN] [U] [Enter]

Switches USB focus only directly to the computer that corresponds to that port ID (PN = port number).

Note: This hotkey functions on the rst level of an installation only.

[A] [Enter] Starts Auto Scan. The KVM focus cycles from port to port at the default 5-second intervals.

[A] [n] [Enter] Starts Auto Scan at n-second intervals (n = 0–255 seconds).

Note: When n=0, the Auto Scan will not be activated.

[H] Toggles between the default ([Num Lock] [-]) and alternate ([Ctrl] [F12]) HSM invocation keys.

[T] Toggles between the default ([Scroll Lock] [Scroll Lock]) and alternate ([Ctrl] [Ctrl]) OSD Hotkey.

[F1] Sets the port OS to Windows.

[F2] Sets the port OS to Mac.

[F3] Sets the port OS to Sun.

[F5] Performs a keyboard / mouse reset on the target computer.

[B] Enables/disables the beeper.

[R] [Enter]

Resets the hotkey settings to their default status (see 14.4 Factory Default Hotkeys and Settings).

[D] Invokes Video DynaSync, an exclusive technology that eliminates boot-up display problems and

optimizes resolution when switching between ports.

10. Hotkey Operation

Key Function

[V] [n] [Enter] Sets EDID Mode.

• n = 1, read DisplayPort monitor’s EDID.

• n = 2, default EDID mode (full HD 1920 x 1080 @ 60 Hz.

[P] [n] [Enter] Sets the KVM switching mode.

n = 1, sets the KVM to Normal Switching Mode.

n = 2, sets the KVM to Fast Switching Mode.

Note: This hotkey is only supported by B024-H4U08 / B024-H4U16 using rmware version v1.1.102

or later.

[M] Enables/disables mouse emulation.

[←] Skips to the previous computer on the list while in Skip mode.

[→] Skips to the next computer on the list while in Skip mode.

[↑] Skips to the previous accessible port. If the previous accessible port has cascaded a switch, it skips

to the last accessible port of that switch.

[↓] Skips to the next accessible port. If the next accessible port has cascaded a switch, it skips to the

rstaccessibleportofthatswitch.

[ESC] or

[Spacebar]

Exits hotkey setting mode (HSM).

Note: Enable mouse emulation to perform any independent switching of a port and for Auto Scan Mode or Skip Mode to work (see

10.14 Mouse Emulation Control).

11. Keyboard Emulation

11.1 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 rst key [Ctrl], then press and release the activation key.

11. Keyboard Emulation

11.2 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 rst key [Ctrl], then press and release the activation key.

12. RS-232 Operation

The KVM’s built-in bi-directional RS-232 serial interface allows system control through a high-end controller or PC.

RS-232 serial operations in the KVM installation are managed via HyperTerminal sessions on systems that are

runningWindows.InordertousethisfeaturetosendcommandstotheKVM,youmustrstdownloadandinstalla

HyperTerminal application.

12.1 Setup

Install a HyperTerminal application on a computer that is not part of the installation, which will be used to control the

switch via the RS-232 connection. HyperTerminal applications can be download from the Internet and many operating

systems are embedded with HyperTerminal applications.

Hardware Connection

Use a the Firmware Upgrade Cable provided with this unit to connect a computer’s serial port to the Firmware Upgrade

Port on the KVM’s front panel, as shown in the diagram below:

Note: B024-H4U16 model shown. The port locations are the same for the B024-H4U08, except for the number of KVM ports.

12.2 RS-232 Pin Assignments

Pin assignments for the B024-H4U08 and B024-H4U16 KVM Firmware Upgrade Port are used for connecting to a serial

terminal.

Pin Assignment

1 TXD: Transmit Data

RJ11 Female

2 RXD: Receive Data

3 N/A

4 GND: Signal Ground

Firmware Upgrade Cable

12. RS-232 Operation

12.3 Console Login: HyperTerminal

Once a physical connection from the computer to the KVM switch has been made, you can establish a

HyperTerminal session.

Open the HyperTerminalapplication,conguretheportsettingsforCOM1port,thenclickOK.

Bits per Second: 19200, Data Bits: 8, Parity: None, Stop bits: 1, Flow Control: None.

Afterconguringtheportsettingsyoumustenableserialcontrolontheswitchbytypingthecommand:

Open + [Enter].

12. RS-232 Operation

12.4 RS-232 Commands

After you login via HyperTerminal (see 12.3 Console Login: HyperTerminal), use the instructions below to send

RS-232 commands to control the switch from the computer.

When RS-232 control is enabled via the Open + [Enter] command, the KVM’s front panel pushbuttons, OSD, hotkeys

and remote control commands will be disabled until the RS-232 control is disabled.

12.4.1 Verication

Afterenteringacommand,avericationmessageappearsattheendofthecommandline:

Response Message Description

Command OK Command or parameter is correct.

Command incorrect Command or parameter is incorrect.

With all commands in the sections that follow:

• Each command string can be separated with a space.

• The [Enter] command can be replaced with the ASCII code: 0x0D0A

12.4.2 Login

The Login command allows you to log in to the KVM and send RS-232 commands. When you log in, the RS-232 link is

“opened” and the KVM will not respond to front panel pushbuttons, hotkeys, OSD or remote control commands until the

RS-232 link is closed (see 12.4.6 Switch Port).

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + Name + Number + [Enter]

Parameters

Command Description

Control Description

U Input user name + password

Name Description

xxxxxxxxxxxxx The login user name

Password Description

xxxxxxxxxxxxx The login user password

Enter Description

Enter Enter and send out command

The formula for the Login command is as follows:

Command + Control + Name + Number + [Enter]

For example, to login via username and password, type the following:

12. RS-232 Operation

12.4.3 Logout

The Logout commands allows you to log out of the KVM and close the RS-232 link.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + [Enter]

Parameters

Command Description

Logout Logout command

Enter Description

Enter Enter and send out command

Logout Command

The formula for the Logout command is as follows:

Command + [Enter]

For example, to logout of the KVM, type the following:

logout [Enter]

12.4.4 Open/Close RS-232 Link

The Open/Close RS-232 Link commands allow you to open and close the link between the computer sending RS-232

commands and the KVM. When the link is open, the KVM only accepts RS-232 commands and will not respond to front

panel pushbuttons, OSD, hotkeys and remote control commands until the link is closed. The link opens when you login

and closes after 2 minutes if no command is sent.

Use the Formula →tosetParameters→tocreateaCommand.

Formula

Command + [Enter]

Parameters

Command Description

Open Open RS-232 Link command

Close Close RS-232 Link command

Enter Description

Enter Enter and send out command

Open/Close RS-232 Link Commands

The available formulas for the Open/Close RS-232 Link commands are as follows:

Command + [Enter]

For example, to open the RS-232 link between the computer and KVM, type the following: open [Enter]

Command + [Enter]

For example, to close the RS-232 link between the computer and KVM, type the following: close [Enter]

12. RS-232 Operation

12.4.5 Set Baud Rate

TheSetBaudRatecommandallowsyoutocongurethebaudratesettingfortheserialportconnection.Thedefault

baud rate is 19200.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

baud Baud rate command

Control Description

19200 Set baud rate to 19200 (Default)

38400 Set baud rate to 38400

9600 Set baud rate to 9600

Enter Description

Enter Enter and send out command

Set Baud Rate Commands

The available formulas for the Set Baud Rate commands are as follows:

Command + Control + [Enter]

For example, to set the baud rate to 19200, type the following:

baud 19200 [Enter]

Command + Control + [Enter]

For example, to set the baud rate to 38400, type the following:

baud 38400 [Enter]

12.4.6 Switch Port

The Switch Port command allows you to switch ports. The default port is 01.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

sw Switch Port command

Control Description

ixx Input port number

xx= 01~08 (B024-H4U08); 01~16 (B024-H4U16)

Enter Description

Enter Enter and send out command

12. RS-232 Operation

Switch Port Command

The available formula for the Switch Port command is as follows:

Command + Control + [Enter]

For example, to switch to port 2, type the following:

sw i02 [Enter]

Note: The Control command can be skipped and the default value will be used.

12.4.7 Hotkey Setting

The Hotkey Setting command allows you to change the hotkey used to invoke the HSM (Hotkey Setting Mode).

The default hotkey is [Num Lock] + [-].

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

hotkey Hotkey Setting command

Control Description

num Change the HSM invoke key to:

[Num Lock] + [-] (Default)

f12 Change the HSM invoke key to:

[Ctrl] + [F12]

Enter Description

Enter Enter and send out command

Hotkey Setting Commands

The available formulas for Hotkey Setting commands are as follows:

Command + Control + [Enter]

For example, to change the HSM invoke key to [Num Lock] + [-], type the following:

hotkey num [Enter]

Command + Control + [Enter]

For example, to change the HSM invoke key to [Ctrl] + [F12], type the following:

hotkey f12 [Enter]

12.4.8 OSD Hotkey

The OSD Hotkey command allows you to change the hotkey used to invoke the OSD. The default hotkey is [Scroll][Scroll].

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

osdkey OSD Hotkey command

Control Description

scroll Change OSD hotkey invoke key to: [Scroll] [Scroll] (Default)

ctrl Change OSD hotkey invoke key to: [Ctrl] [Ctrl]

Enter Description

Enter Enter and send out command

Hotkey Switching Commands

The available formulas for OSD Hotkey commands are as follows:

Command + Control + [Enter]

For example, to change the OSD hotkey invoke key to [Scroll] [Scroll], type the following:

osdkey scroll [Enter]

Command + Control + [Enter]

For example, to change the OSD hotkey invoke key to [Ctrl] [Ctrl], type the following:

osdkey ctrl [Enter]

12.4.9 USB Reset

TheUSBResetcommandallowsyoutoresettheUSBconnection.ThedefaultUSBresetsettingiso󰀨.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

usbreset USB Reset command

Control Description

on Enable USB reset connection

Enter Description

Enter Enter and send out command

12. RS-232 Operation

USB Reset Command

The available formula for the USB Reset command is as follows:

Command + Control + [Enter]

For example, to reset the USB connection, type the following:

usbreset on [Enter]

12.4.10 Restore Default Settings

The Restore Default Settings command allows you to reset all of the KVM’s settings back to the default.

The default setting is OFF.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

reset Restore Default Settings command

Control Description

on Enable restore default values

Enter Description

Enter Enter and send out command

Restore Default Value Command

The available formula for the Restore Default Settings command is as follows:

Command + Control + [Enter]

For example, to restore all KVM settings back to the default, type the following:

reset on [Enter]

12.4.11 Firmware Upgrade

TheFirmwareUpgradecommandallowsyoutoenablethermwareupgrademode.Thedefaultsettingiso󰀨.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

upgrade Firmware Upgrade command

Control Description

on Enablermwareupgrademode

Enter Description

Enter Enter and send out command

12. RS-232 Operation

Firmware Upgrade Command

The available formula for the Firmware Upgrade command is as follows:

Command + Control + [Enter]

Forexample,toenablermwareupgrademode,typethefollowing:

upgrade on [Enter]

12.4.12 KVM Status

TheKVMStatuscommandallowsyoutodisplayread-onlyinformationabouttheKVM’scurrentcongurationstatus.

Thedefaultsettingiso󰀨.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

status KVM Status command

Control Description

on Enable KVM status

Enter Description

Enter Enter and send out command

KVM Status Command

The available formula for the KVM Status command is as follows:

Command + Control + [Enter]

Forexample,todisplaythecongurationstatusfortheB024-H4U08/B024-H4U16,typethefollowing:

status on [Enter]

A message similar to the one below will then appear:

hotkey: [numlock]+[-] / [scrolllock],[scrolllock]

os setting: pc

keyboard emulation: enabled/disabled

keyboard layout: English

mouse emulation: enabled/disabled

monitor re-detection: enabled/disabled

12. RS-232 Operation

12.4.13 EDID Mode

The EDID Mode command allows you to set EDID mode for the KVM.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

edid Set EDID Mode command

Control Description

port1 Set to display A (DisplayPort monitor) EDID

default Set to default EDID

Enter Description

Enter Enter and send out command

EDID Mode Command

The available formula for the KVM Status command is as follows:

Command + Control + [Enter]

For example, to set the KVM’s EDID mode to default EDID, type the following:

edid default [Enter]

12.4.14 Broadcast Mode

TheBroadcastModecommandallowsyoutosetenable/disablebroadcastmodefortheKVM.Thedefaultsettingiso󰀨.

Use the Formula→tosetParameters→tocreateaCommand.

Formula

Command + Control + [Enter]

Parameters

Command Description

broadcast Set Broadcast Mode command

Control Description

on Enable broadcast mode for the KVM

o󰀨 Disable broadcast mode for the KVM

Enter Description

Enter Enter and send out command

Broadcast Mode Command

The available formula for the KVM Status command is as follows:

Command + Control + [Enter]

For example, to enable the KVM’s broadcast mode, type the following:

broadcast on [Enter]

13. Firmware Management Utility

13.1 Downloading the Firmware

Todownloadthermware:

From a computer that is not part of your KVM installation, go to tripplite.com and choose the model name that

relatestoyourdevice.Alistofavailablermwareappears.

Choosethermwarethatyouwishtoinstall(usuallythemostrecent)anddownloadittoyourcomputer.

13.2 Preparation

Toprepareforthermwareupgrade,dothefollowing:

Use the Firmware Upgrade Cable provided with this unit to connect a COM port on your computer to the Firmware

Upgrade Port of your switch.

Shut down all computers on the KVM installation.

From your KVM switch console, login to the OSD as the administrator (see 9.1 OSD Login) and select the F4

Admin function.

Scroll down to Firmware Upgrades. Press [Enter], then press [Y] to invoke Firmware Upgrade mode (refer to

“Firmware Upgrade” in the table in section 9.6.4 F4: Admin for details).

Invoke the Firmware Upgrade mode using RS-232 command (see 12.4.11 Firmware Upgrade).

Firmware Upgrade Cable

13. Firmware Management Utility

13.3 Starting the Upgrade

Toupgradethermware:

Runthedownloadedrmwareupgradepackagele,eitherbydoubleclickingtheleiconorbyopeninga

command line and entering the full path to it.

The Firmware Upgrade Utility welcome screen will appear:

Note: The screens shown in this section are for reference only. The wording and layout of the actual Firmware Upgrade Utility may

vary slightly from these examples.

Read the License Agreement and enable the “I Agree” radio button.

Click Next to continue. The Firmware Upgrade Utility main screen will appear. The devices capable of upgrades are

listed in the Device List panel:

13. Firmware Management Utility

When selecting a device in the list, its description appears in the Device List panel.

Click Next to perform the upgrade.

IfyouenabledCheckFirmwareVersion,theUtilitycomparesthedevice’srmwarelevelwiththatoftheupgradeles.

Ifitndsthatthedevice’sversionishigherthantheupgradeversion,adialogboxwillappearinformingyouofthe

situationando󰀨eringyoutheoptiontocontinueorcancel.

Ifyoudidn’tenableCheckFirmwareVersion,theUtilityinstallstheupgradeleswithoutcheckingwhethertheyarea

higher level or not.

As the upgrade proceeds, status messages appear in the Status Messages panel and the progress toward completion is

shown on the Progress bar.

13. Firmware Management Utility

13.4 Upgrade Successful

After the upgrade has completed, a screen will appear to inform you that the procedure was successful.

Click Finish to close the Firmware Upgrade Utility.

After a successful completion, the switches will exit Firmware Upgrade Mode and reset.

13.5 Upgrade Failed

If the Upgrade Succeeded screen does not appear, the upgrade failed to complete successfully. Refer to 13.6 Firmware

Upgrade Recovery for how to proceed.

13.6 Firmware Upgrade Recovery

Therearethreeconditionsthatcallforrmwareupgraderecovery:

•Whenarmwareupgradeismanuallyaborted.

•Whenthemainboardrmwareupgradefails.

•WhentheI/Ormwareupgradefails.

Toperformarmwareupgraderecovery,dothefollowing:

Powero󰀨theswitch.

Connect the Firmware Upgrade Cable to its Firmware Upgrade Port.

Slide the Firmware Upgrade Recovery Switch to the Recover position.

Power the switch back on and repeat the upgrade procedure.

Aftertheswitchhasbeensuccessfullyupgraded,powerito󰀨andslidetheFirmwareUpgradeRecoverySwitch

back to the Normal position.

If the switch is one of the cascaded switches, plug it back into the installation.

Power the switch back on.

13. Firmware Management Utility

13.7 OSD Conguration Backup/Restore

TheFirmwareManagementUtilityletsyoubackupthecurrentOSDcongurationoftheKVMandrestoreitwhennecessary.

StoringtheOSDcongurationsettingsisusefulwhendeployingmorethanoneinstallationthatusesthesamesettings.

13.7.1 Backup

Tostoreabackupletoalocalcomputer:

Make sure your computer is connected to the KVM (see 13.2 Preparation and follow steps 1–3).

WhenyouhaveselectedtheF4Adminfunction,scrolldowntoOSDCongBackup/Restore.Press[Enter],

then select Enable toinvokeOSDCongBackup/Restoremode.

RuntheFirmwareManagementUtility.Inthedialogbox,choose“OSDCongurationBackup/Restore,”

then click Next.

In the window that appears, click Connect Device.

InthePasswordeld,keyinapasswordforthele.

Note: Setting a password is optional. If you do not set one, the le can be restored without specifying a password.

Click Backup.

Whenthebrowseraskswhatyouwanttodowiththele,select“Savetodisk,”thensaveitinaconvenientlocation.

14. Appendix

14.1 B024-H4U08 and B024-H4U16 Connection Tables

The following tables indicate the relationship between the number of Primary View (PV) units and the number of

computers that they control:

14.1.1 B024-H4U08 (First Level) +

B024-H4U08 (Second Level)

PVs Computers

1 1 – 8

2 8 – 15

3 15 – 22

4 22 – 29

5 29 – 36

6 36 – 43

7 43 – 50

8 50 – 57

9 57 – 64

13. Firmware Management Utility

13.7.2 Restore

Followthesestepstorestoreabackuplefromalocalcomputer:

Perform steps 1 to 3 in 13.7.1 Backup.

Click RestoretorecoveranOSDcongurationstoredinthelocalcomputer.Ifyouhavepreviouslysetapassword

forthisfeature,enterthepasswordintheprovidedeldbeforeclickingRestore.Aconrmationwindowwillappear.

Click Yes to proceed.

BrowsefortheOSDcongurationleyouwanttouseandclickRestore.Makesurethebackupleisinthelocal

computer.

Aconrmationwindowappearswhentherestoreprocessisdoneandsuccessful.ClickOK to close it.

14.1.2 B024-DPU16 (First Level) +

B024-DPU16 (Second Level)

PVs Computers

1 1 – 16

2 16 – 31

3 23 – 30

4 31 – 46

5 61 – 76

6 76 – 91

7 91 – 106

8 106 – 121

9 121 – 136

10 136 – 151

11 151 – 166

12 166 – 181

13 181 – 196

14 196 – 211

15 211 – 226

16 226 – 241

17 241 – 256

14.1.3 B024-H4U08 (First Level) + B024-H4U08 (Second Level)

PVs Computers

1 1 – 8

2 8 – 15

3 15 – 22

4 22 – 29

5 29 – 36

6 36 – 43

7 43 – 50

8 50 – 57

9 57 – 64

10 64 – 71

11 71 – 78

12 78 – 85

13 85 – 92

14 92 – 99

15 99 – 106

16 106 – 113

17 113 – 120

18 120 – 127

19 127 – 134

20 134 – 141

21 141 – 148

22 148 – 155

23 155 – 162

24 162 – 169

25 169 – 176

26 176 – 183

27 183 – 190

28 190 – 197

29 197 – 204

30 204 – 211

31 211 – 218

32 218 – 225

33 225 – 232

34 232 – 239

35 239 – 246

36 246 – 253

37 253 – 260

14. Appendix

PVs Computers

38 260 – 267

39 267 – 274

40 274 – 281

41 281 – 288

42 288 – 295

43 295 – 302

44 302 – 309

45 309 – 316

46 316 – 323

47 323 – 330

48 330 – 337

49 337 – 344

50 344 – 351

51 351 – 358

52 358 – 365

53 365 – 372

54 372 – 379

55 379 – 386

56 386 – 393

57 393 – 400

58 400 – 407

59 407 – 414

60 414 – 421

61 421 – 428

62 428 – 435

63 435 – 442

64 442 – 449

65 449 – 456

66 456 – 463

67 463 – 470

68 470 – 477

69 477 – 484

70 484 – 491

71 491 – 498

72 498 – 505

73 505 – 512

14.2 Specications

B024-H4U08 B024-H4U16

Computer

Connections

Direct 8 16

Max 512 (via Cascade) 256 (via Cascade)

Port Selection OSD, Hotkey, Pushbutton, RS-232 Commands

Connectors

Console

Ports

KB 1 x USB Type-A, Female

Video 1 x HDMI, Female

Mouse 1 x USB Type-A, Female

Speakers 2 x 3.5 mm Audio Jack, Female (Green; 1 x front, 1 x rear)

KVM Ports

KB / Mouse

8 x USB 3.1 Gen1 Type-B,

Female (Blue)

16 x USB 3.1 Gen1 Type-B,

Female (Blue)

Video 8 x HDMI Female 16 x HDMI Female

Speakers

8 x 3.5 mm Audio Jack,

Female (Green)

16 x 3.5 mm Audio Jack, Female

(Green)

F/W Upgrade 1 x RJ11, Female (Black)

Power 1 x DC Jack

USB 3.1 Hub 2 x USB 3.1 Gen1 Type-A, Female (Blue; 2 x front)

Switches

Port Selection 8 x Pushbutton 16 x Pushbutton

Reset 1 x Semi-Recessed Pushbutton

F/W Upgrade 1 x Slide Switch

LEDs

USB Link 8 (Green) 16 (Green)

On-Line / Selected 8 (Orange) 16 (Orange)

Power 1 (Green)

Emulation Keyboard / Mouse USB

Video HDMI: 4096 x 2160 @ 60 Hz

Scan Interval 1–255 Seconds (Default: 5 secs)

Power Consumption DC12V: 9.77W: 88 BTU DC12V: 13.12W: 104 BTU

Environment

Operating Temp 32–104ºF (0–40ºC)

Storage Temp -4–140ºF (-20–60ºC)

Humidity 0–80% RH, Non-condensing

Physical Properties

Housing Metal

Weight 6.85 lb. (3.11 kg) 7.8 lb (3.54 kg)

Dimensions [L x W x H] 17.02 x 8.44 x 1.73 in. (43.24 x 21.43 x 4.40 cm)

14. Appendix

14.3 Administrator Login Failure

If you are unable to perform an Administrator login (e.g. because the username/password information has become

corrupted or you have forgotten it), you can clear the login information with the following procedure:

Powero󰀨theKVMandremoveitshousing.

Short the jumper labeled DEFAULT PASSWORD.

Power on the switch.

WhenthefrontpanelLEDsash,powero󰀨theswitch.

Remove the jumper cap.

Close the housing and restart the KVM. After restarting, you can use the default login procedure to login

(see 9.1 OSD Login).

14.4 Factory Default Hotkeys and Settings

Setting Default

OSD Hotkey [Scroll Lock] [Scroll Lock]

Invoking HSM Hotkey [Number 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

Auto Scan Interval 5 Seconds

Scan/Skip Mode All Ports

Mouse Emulation Enabled

Screen Blanker Disabled

Logout Timeout Disabled

EDID Mode HDMI Monitor’s EDID

Beeper Enabled

Accessible Ports Full for All Users on All Ports

Video DynaSync Enabled

1111 W. 35th Street, Chicago, IL 60609 USA • tripplite.com/support

23-01-236 93406D_RevC

15. Warranty and Product Registration

3-Year Limited Warranty

TRIPP LITE warrants its products to be free from defects in materials and workmanship for a period of three (3) years from the date

of initial purchase.

TRIPP LITE’s obligation under this warranty is limited to repairing or replacing (at its sole option) any such defective products.

To obtain service under this warranty, you must obtain a Returned Material Authorization (RMA) number from TRIPP LITE or an

authorized TRIPP LITE service center. Products must be returned to TRIPP LITE or an authorized TRIPP LITE service center with

transportation charges prepaid and must be accompanied by a brief description of the problem encountered and proof of date and

place of purchase. This warranty does not apply to equipment which has been damaged by accident, negligence or misapplication

orhasbeenalteredormodiedinanyway.

EXCEPT AS PROVIDED HEREIN, TRIPP LITE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some states do not permit limitation or exclusion of

implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may not apply to the purchaser.

EXCEPT AS PROVIDED ABOVE, IN NO EVENT WILL TRIPP LITE BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL

OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF THE POSSIBILITY

OFSUCHDAMAGE.Specically,TRIPPLITEisnotliableforanycosts,suchaslostprotsorrevenue,lossofequipment,lossof

use of equipment, loss of software, loss of data, costs of substitutes, claims by third parties, or otherwise.

PRODUCT REGISTRATION

Visit tripplite.com/warranty today to register your new Tripp Lite product. You’ll be automatically entered into a drawing for a chance

to win a FREE Tripp Lite product!*

* No purchase necessary. Void where prohibited. Some restrictions apply. See website for details.

RegulatoryComplianceIdenticationNumbers

Forthepurposeofregulatorycompliancecerticationsandidentication,yourTrippLiteproducthasbeenassignedauniqueseries

number. The series number can be found on the product nameplate label, along with all required approval markings and information.

When requesting compliance information for this product, always refer to the series number. The series number should not be

confused with the marketing name or model number of the product.

WEEE Compliance Information for Tripp Lite Customers and Recyclers (European Union)

Under the Waste Electrical and Electronic Equipment (WEEE) Directive and implementing regulations, when customers buy

new electrical and electronic equipment from Tripp Lite they are entitled to:

• Send old equipment for recycling on a one-for-one, like-for-like basis (this varies depending on the country)

• Send the new equipment back for recycling when this ultimately becomes waste

TrippLitehasapolicyofcontinuousimprovement.Specicationsaresubjecttochangewithoutnotice.Photosandillustrationsmay

di󰀨erslightlyfromactualproducts.

Tripp Lite B024-H4U16 16-Port 4K HDMI/USB KVM Switch - 4K 60 Hz Video/Audio, USB Peripheral Sharing, 1U Rack-Mount

Product's Documents

Owner's Manual for NetDirector 1U Rack-Mount 4K/60 Hz HDMI KVM Switch with Audio 8-Port Model: B024-H4U08 16-Port Model: B024-H4U16

Specifications

Tripp Lite B024-H4U16 Questions and Answers