IHSE 476 User Manual

User Manual

Edition: 2013-04-11

Draco

U-Switch

Model:

K476-4U
K476-8U

K476-4U2

IHSE GmbH

Maybachstrasse 11
88094 Oberteuringen
Germany

[e-mail]
www.ihse.de

Tel. [phone]
Fax [phone]

Draco U-Switch

Copyright

© 2013. All rights reserved. This information may not be reproduced in any
manner without the prior written consent of the manufacturer.

Information in this document is subject to change without notice.

Trademarks

All trademark and trade names mentioned in this document are
acknowledged to be the property of their respective owners.

Disclaimer

While every precaution has been taken during preparation of this manual,
the manufacturer assumes no liability for errors or omissions. Neither does
the manufacturer assume any liability for damages resulting from the use
of the information contained herein.

The manufacturer reserves the right to change specifications, functions, or
circuitry of the product without notice.

The manufacturer cannot accept liability for damage due to misuse of the
product or due to any other circumstances outside the manufacturer’s
control (whether environmental or installation related). The manufacturer
shall not be liable for any loss, damage, or injury arising directly, indirectly,
incidentally, or consequently from the use of this product.

2 2013-04-11

Contents

Contents

1 About This Manual....................................................................... 5

1.1 Scope.................................................................................. 5

1.2 Validity ................................................................................ 5

1.3 Cautions and Notes ............................................................ 5

2 Safety Instructions....................................................................... 6

3 Description ................................................................................... 7

3.1 Application .......................................................................... 7

3.2 System Overview ................................................................ 8

3.3 Product Range .................................................................... 9

3.4 Upgrade Kits .......................................................................9

3.5 Accessories......................................................................... 9

3.6 Device Views .................................................................... 10

3.6.1 Model K476-4U ................................................... 10

3.6.2 Model K476-8U ................................................... 11

3.6.3 Model K476-4U2 ................................................. 12

3.7 Status LEDs ...................................................................... 14

4 Installation .................................................................................. 16

4.1 Package Contents............................................................. 16

4.2 System Setup.................................................................... 16

4.3 Example Applications........................................................ 17

5 Configuration.............................................................................. 19

5.1 Command Mode ............................................................... 19

5.2 External Display (optional) ................................................ 21

5.3 External Control (optional) ................................................ 21

6 Operation .................................................................................... 22

6.1 Switching a Source ........................................................... 22

6.1.1 Switching via Keyboard....................................... 22

6.1.2 Switching via Mouse (Panning)........................... 22

6.1.3 External Switching (optional)............................... 23

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Draco U-Switch

7 Specifications............................................................................. 24

7.1 Interfaces .......................................................................... 24

7.2 Supported Peripherals ...................................................... 25

7.3 Connector Pinouts ............................................................ 26

7.4 Power Supply.................................................................... 27

7.5 Environmental Conditions ................................................. 27

7.6 Size................................................................................... 27

7.7 Shipping Weight................................................................ 27

7.8 MTBF ................................................................................ 28

8 Troubleshooting......................................................................... 29

8.1 USB-HID ........................................................................... 29

9 Technical Support...................................................................... 30

9.1 Support Checklist.............................................................. 30

9.2 Shipping Checklist ............................................................ 30

10 Certificates.................................................................................. 31

10.1 CE Declaration Of Conformity........................................... 31

10.2 North American Regulatory Compliance........................... 32

10.3 WEEE ............................................................................... 32

10.4 RoHS/RoHS 2................................................................... 32

11 Glossary...................................................................................... 33

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7.1.1 USB-HID ............................................................. 24

7.1.2 RJ10 / 4P4C........................................................ 25

7.2.1 USB-HID Devices ............................................... 25

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About This Manual

1 About This Manual

1.1 Scope

This manual describes how to install your U-Switch, how to operate it and
how to perform trouble shooting.

1.2 Validity

This manual is valid for all devices listed on the front page. The product
code is printed on the base of the devices.

1.3 Cautions and Notes

The following symbols are used in this manual:

This symbol indicates an important operating instruction that should be
followed to avoid any potential damage to hardware or property, loss of
data, or personal injury.

This symbol indicates important information to help you make the best use
of this product.

This symbol indicates best practice information to show recommended
and optimal ways to use this product in an efficient way.

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Draco U-Switch

2 Safety Instructions

To ensure reliable and safe long-term operation of your U-Switch please
note the following guidelines:

Installation

 Only use in dry, indoor environments.
 The U-Switch and the power supply units can get warm. Do not

situate them in an enclosed space without any airflow.

 Do not place the power supply directly on top of the device.
 Do not obscure ventilation holes.
 Only use power supplies originally supplied with the product or

manufacturer-approved replacements. Do not use a power supply if it
appears to be defective or has a damaged chassis.

 Connect all power supplies to grounded outlets. In each case, ensure

that the ground connection is maintained from the outlet socket
through to the power supply's AC power input.

 Do not connect the link interface to any other equipment, particularly

network or telecommunications equipment.

 Take any required ESD precautions.

In order to disconnect the device completely from the electric circuit, all
power cables have to be removed.

Repair

 Do not attempt to open or repair a power supply unit.
 Do not attempt to open or repair the U-Switch. There are no user

serviceable parts inside.

 Please contact your dealer or manufacturer if there is a fault.

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Description

3 Description

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3.1 Application

The U-Switch is used to handle several sources (computer, CPU, KVM
Extender CON Units) and several monitors with one keyboard and mouse
set only.

The U-Switch is especially suitable for use with KVM switches and KVM
extenders of the Draco family.

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Draco U-Switch

3.2 System Overview

The U-Switch is connected to the sources (computer, CPU, KVM extender
CON Units) by using the included cables.

Keyboard and mouse are also connected to the device.

1

2 3

1 Sources (computer, CPU, KVM Extender CON Units)
2 U-Switch
3 Keyboard, mouse

See Chapter 4.3, Page 17 for installation examples.

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8 2013-04-11

Description

3.3 Product Range

Model Description

K476-4U U-Switch 4 Port
K476-8U U-Switch 8 Port
K476-4U2 U-Switch for parallel switching of 2x4 ports

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3.4 Upgrade Kits

Model Description

455-8G 19"/1U rack mount kit to mount up to 2 devices
455-1K Mounting plate to mount by screws
455-2K Mounting plate to mount by snap on

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3.5 Accessories

Model Description

260-5U International power supply unit 100...240VAC / 5VDC / 4 A

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Draco U-Switch

3.6 Device Views

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3.6.1 Model K476-4U

Rear View

1 Connect to RJ10 / 4P4C (Port 1)
2 To CPU 1: USB-HID
3 Connect to RJ10 / 4P4C (Port 2)
4 To CPU 2: USB-HID
5 Connect to RJ10 / 4P4C (Port 3)
6 To CPU 3: USB-HID
7 Connect to RJ10 / 4P4C (Port 4)
8 To CPU 4: USB-HID
9 Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5VDC power supply

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1

3

2

5 6 7 8 9 10 11 12

4

10 2013-04-11

Description

3.6.2 Model K476-8U

13 14 15 16 17 18 19 20

Rear View

1 Connect to RJ10 / 4P4C (Port 1)
2 To CPU 1: USB-HID
3 Connect to RJ10 / 4P4C (Port 2)
4 To CPU 2: USB-HID
5 Connect to RJ10 / 4P4C (Port 3)
6 To CPU 3: USB-HID
7 Connect to RJ10 / 4P4C (Port 4)
8 To CPU 4: USB-HID
9 Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5VDC power supply
13 Connect to RJ10 / 4P4C (Port 5)
14 To CPU 5: USB-HID
15 Connect to RJ10 / 4P4C (Port 6)
16 To CPU 6: USB-HID
17 Connect to RJ10 / 4P4C (Port 7)
18 To CPU 7: USB-HID
19 Connect to RJ10 / 4P4C (Port 8)
20 To CPU 8: USB-HID

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1

3

2

5 6 7 8 9 10 11 12

4

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Draco U-Switch

3.6.3 Model K476-4U2

13 14 15 16 17 18 19 20

1

Rear View

1 Connect to RJ10 / 4P4C (Port 1)
2 To CPU 1.1: USB-HID
3 Connect to RJ10 / 4P4C (Port 2)
4 To CPU 2.1: USB-HID
5 Connect to RJ10 / 4P4C (Port 3)
6 To CPU 3.1: USB-HID
7 Connect to RJ10 / 4P4C (Port 4)
8 To CPU 4.1: USB-HID
9 Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5VDC power supply
13 Connect to RJ10 / 4P4C (Port 5)
14 To CPU 1.2: USB-HID
15 Connect to RJ10 / 4P4C (Port 6)
16 To CPU 2.2: USB-HID
17 Connect to RJ10 / 4P4C (Port 7)
18 To CPU 3.2: USB-HID
19 Connect to RJ10 / 4P4C (Port 8)
20 To CPU 4.2: USB-HID
21 Connect to USB-HID devices 3
22 Connect to USB-HID devices 4

3

2

5 6 7 8 9 10 11 12

4

21 22

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Description

The USB-B connectors 1.2–4.2 have to be connected to additional USB­HID modules on extender site in order to allow parallel switching with
USB-B connectors 1.1–4.1.

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Draco U-Switch

3.7 Status LEDs

The U-Switch is fitted with a multi color LED on both sides for indication of
connection status:

Front View

Pos. LED Status Description

Status

(green)

Power

(red)

Off Device not ready 1
On Device ready
Off Power supply not available 2
On Power supply available

12

14 2013-04-11

Description

6 7 8 9

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1

2

3

Rear View

Pos. LED Status Description

USB Status
CPU 1 (green)

USB Status
CPU 2 (green)

USB Status
CPU 3 (green)

USB Status

CPU 4 (green)

Power

(red)

USB Status

CPU 5 (green)

USB Status

CPU 6 (green)

USB Status

CPU 7 (green)

USB Status

CPU 8 (green)

Off No connection to CPU 1 1
On Connection to CPU 1
Off No connection to CPU 2 2
On Connection to CPU 2
Off No connection to CPU 3 3
On Connection to CPU 3
Off No connection to CPU 4 4
On Connection CPU 4
Off Device not ready 5
On Device ready
Off No connection to CPU 5 6
On Connection to CPU 5
Off No connection to CPU 6 7
On Connection to CPU 6
Off No connection to CPU 7 8
On Connection to CPU 7
Off No connection to CPU 8 9
On Connection to CPU 8

4

5

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Draco U-Switch

4 Installation

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4.1 Package Contents

Your extender package contains the following items:

 U-Switch
 5VDC international power supply unit
 German power cord
 Quick Setup
 4x USB cable (1.8 m, type A to type B)

Additional content for K476-8U / K476-4U2:

 8x USB cable (1.8 m, type A to type B)

If anything is missing, contact your dealer.

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4.2 System Setup

First time users are recommended to setup the system with the CPU Unit
and the CON Unit in the same room as a test setup. This will allow you to
identify and solve any cabling problems, and experiment with your system
more conveniently.

1. Switch off all devices.

2. Connect the USB cables to the CPUs (CON Units) and to the U­Switch.

3. Connect mouse and keyboard to the U-Switch.

4. Connect the 5VDC power supply with the U-Switch.

5. Power up the system.

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16 2013-04-11

Installation

4.3 Example Applications

This section illustrates typical installations of the U-Switch:

1

U-Switch (Direct CPU connection)

1 Source (computer, CPU)
2 Switch button (see Chapter 5.3, Page 21)
3 U-Switch
4

Keyboard, mouse

32 4

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Draco U-Switch

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21

43 5

U-Switch (In combination with Draco KVM switch)

1 Draco KVM Switch
2 CON Units
3 Monitor LEDs (see Chapter 5.2, Page 21)
4 U-S
5

witch

Keyboard, mouse

18 2013-04-11

Configuration

5 Configuration

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5.1 Command Mode

The U-Switch has a Command Mode that allows several functions via
keyboard command during normal use.

To enter Command Mode use a 'Hot Key' sequence and to exit Command
Mode, press <Esc>. While in Command Mode, the LEDs Shift and Scroll
on the console keyboard will flash.

In Command Mode normal keyboard and mouse operation will cease.
Only selected keyboard commands are available.

If there is no keyboard command executed within 10 s after activating
Command Mode, it will be automatically deactivated.

The following table lists the keyboard commands to enter and to exit
Command Mode and to change the 'Hot Key' sequence:

Function Keyboard Command

Enter Command Mode
(default)

Exit Command Mode <Esc>
Change 'Hot Key' sequence <current 'Hot Key'>, <c>,

<Key> + <Key> Press keys simultaneously
<Key>, <Key> Press keys successively
2x <Key> Press key quickly, twice in a row

(similar to a mouse double-click)

2x <Right Shift> (or 'Hot Key')

<new 'Hot Key' code>, <Enter>
Until 2011-30-09:
<Left Ctrl> + <Left Shift> + <c>,

<'Hot Key' Code>, <Enter>

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Draco U-Switch

The 'Hot Key' sequence to enter Command Mode can be changed. The
following table lists the 'Hot Key' Codes for the available key sequences:

'Hot Key' Code 'Hot Key'

0 Freely selectable (2012-01-12)
2 2x <Scroll>
3 2x <Left Shift>
4 2x <Left Ctrl>
5 2x <Left Alt>
6 2x <Right Shift>
7 2x <Right Ctrl>
8 2x <Right Alt>

In a KVM switch configuration, choose different 'Hot Keys' for the
KVM Extender and the Draco U-Switch.

Set freely selectable 'Hot Key' (exemplary)

In order to set a freely selectable 'Hot Key' (e.g. 2x <Space>), use the
following keyboard sequence:

<current 'Hot Key'>, <c>, <0>, <Space>, <Enter>

Reset 'Hot Key'

In order to set a 'Hot Key' back to default settings of the extender, press
the key combination <Right Shift> + <Del> within 5 s after switching on the
CON unit or plugging in a keyboard.

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20 2013-04-11

Configuration

5.2 External Display (optional)

The U-Switch has a RJ10 interface at each USB-HID port for CPUs (see
Chapter 7.1.2, Page 25). It provides the current status of the port, e.g. for
control of a status LED.

5.3 External Control (optional)

The U-Switch has a RJ10 interface at each USB-HID port for CPUs (see
Chapter 7.1.2, Page 25). The current switching status can be changed by
a potential-free contact, e.g. by a button.

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Draco U-Switch

6 Operation

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6.1 Switching a Source

6.1.1 Switching via Keyboard

From your console, you can switch via keyboard sequence between
different monitors.

1. Open Command Mode with the 'Hot Key' (see Chapter 5.1, Page 19).

2. Enter the number of the spec
<Enter>.

At the same time Command Mode is closed and the keyboard LEDs
return to previous status.

Keyboard and mouse are connected to the specified source or
monitor.

When using the numeric keypad for switching, a confirmation of the
switching operation by using the key <Enter> is not necessary.

6.1.2 Switching via Mouse (Panning)

When panning the mouse cursor beyond the border of the monitor, you
can switch from your console between different monitors that are in
vertical or horizontal position to each other.

Monitors that are only arranged horizontally (e. g. 4x1, 8x1) has to be
operated with the one-dimensional Multi-Screen mode. Monitors that are
arranged vertically and horizontally (e. g. 2x2, 4x2) have to be operated
with the two-dimensional Multi-Screen mode.

1. Activate the switching via mouse by executing the following keyboard
sequences:

– One-dimensional mode: 'Hot Key', <x>, <1>, <Enter>
– Two-dimensional mode: 'Hot Key', <x>, <2>, <Enter>

2. Move the mouse pointer beyond the border of the monitor to the
vertically or horizontally located monitor.

The switching operation will be immediately executed to the
connected source (computer, CPU) by passing over the mouse
pointer.

ific source or monitor and confirm with

22 2013-04-11

Operation

3. Deactivate the switching via mouse by executing the following
keyboard sequence:
'Hot Key', <x>, <0>, <Enter>

An additional software for calibration and positioning of the mouse pointer
is not necessary.

6.1.3 External Switching (optional)

Optionally, you can connect a button with a RJ10 interface to switch to the
respective source or monitor.

The RJ10 interface is separately available for each USB-HID port with
CPU connection.

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Draco U-Switch

7 Specifications

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7.1 Interfaces

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7.1.1 USB-HID

Our devices with USB-HID interface support a maximum of two devices
with USB-HID protocol. Each USB-HID port provides a maximum current
of 100 mA.

Keyboard

Compatible with most USB keyboards. Certain keyboards with additional
functions may require custom firmware to operate. Keyboards with an
integral USB Hub (Mac keyboards e.g.) are also supported.

Mouse

Compatible with most 2-button, 3-button and scroll mice.

Other USB-HID devices

The proprietary USB emulation also supports certain other USB-HID
devices, such as specific touch screens, graphic tablets, barcode
scanners or special keyboards. Support cannot be guaranteed, however,
for every USB-HID device.

Only two USB-HID devices are supported concurrently, such as keyboard
and mouse or keyboard and touch screen. A hub is allowed, but it does
not increase the number of HID devices allowed.

To support other USB 'non-HID' devices, such as scanners, web cams or
memory devices, choose our devices with transparent USB support.

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24 2013-04-11

Specifications

7.1.2 RJ10 / 4P4C

This interface is used to establish a customer specific communication with
the U-Switch.

External Status LED

For control of an external Status LED to show the status of the respective
port, please proceed as follows:

Connect the anode of your LED with pin 1 and the cathode with pin 2. Use
a suitable series resistor that you connect in series. The interface supplies

3.3 V output voltage with 15 mA max.

External Button

To control a port by an external button, please proceed as follows:
Use an NC (normally closed) contact as a switch. This contact has to

short-circuit pin 3 and pin 4 for switching.

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7.2 Supported Peripherals

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7.2.1 USB-HID Devices

The U-Switch will support most USB-HID devices, including the vast
majority of keyboards and mice currently on the market. Many other kinds
of HID devices such as bar-code scanners and touch screens may also be
compatible

It is not possible to guarantee support for all available USB-HID devices.
In certain cases, custom firmware may be required.

USB-HID (and other) devices that are not supported as standard will
normally operate with our devices featuring transparent USB support.

Please note that concurrent operation of more than two USB-HID devices
is not possible even if you use a USB hub.

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Draco U-Switch

7.3 Connector Pinouts

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Connector USB Type B

Picture Pin Signal Color

1 VCC (+5VDC) Red
2 Data – White
3 Data + Green
4 GND Black

1 VCC (+5VDC) Red
2 Data – White
3 Data + Green
4 GND Black

1 VCC (+5VDC) Red
2 Data – White
3 Data + Green
4 n.c. –
5 GND Black

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Connector USB Type A

Picture Pin Signal Color

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Connector Mini USB Type B

Picture Pin Signal Color

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RJ10 / 4P4C

1

132

4

3

2 4

1

....5

Picture Pin Signal

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1..4

1

2

3

4

LED +

LED –

Dry Contact

GND

26 2013-04-11

Specifications

Power Supply

Picture Pin Signal

Inside VCC (+5VDC)

Outside GND

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7.4 Power Supply

Voltage
Power Requirement

5 VDC

 K476-4U: max. 500 mA
 K476-8U: max. 700 mA
 K476-4U2: max. 700 mA

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7.5 Environmental Conditions

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Operating Temperature
Storage Temperature
Relative Humidity

41 to 113°F (5 to 45°C)
–13 to 140°F (–25 to 60°C)
Max. 80% non-condensing

7.6 Size

U-Switch 209 x 143 x 42 mm (8.2" x 5.6" x 1.7")
Shipping Box 280 x 180 x 130 mm (11.0" x 7.1" x 5.1")

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7.7 Shipping Weight

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U-Switch
Shipping Box

0.6 kg (1.3 lb)

1.1 kg (2.4 lb)

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Draco U-Switch

7.8 MTBF

The following table contains the mean time between failure (MTBF) in
power-on hours (POH). The estimate is based on the FIT rates of the
parts included. FIT rates are based on normalized environmental
conditions of T = 60°C and activation energy (Ea) of 0.7 eV. Calculations
are based on 90% confidence limit.

We estimate that inside the housing, temperature will be 15°C higher than
the ambient temperature. Therefore, the MTBF calculation refers to an
ambient temperature of 45°C. The humidity is limited to 60%.

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4-Port U-Switch
8-Port U-Switch
2x 4-Port U-Switch

487,000 POH
361,000 POH
357,000 POH

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Troubleshooting

8 Troubleshooting

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8.1 USB-HID

Diagnosis Possible Reason Measure

Keyboard LEDs
Shift and Scroll
are flashing

USB device
without function

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Keyboard in Command
Mode

 Press <Esc> to leave Command

Mode.

No USB-HID device  Connect USB-HID device.
USB-HID device is not

supported

 Check compatibility.
 Contact dealer if necessary.

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Draco U-Switch

9 Technical Support

Prior to contacting support please ensure you have read this manual, and
then installed and set-up your U-Switch as recommended.

9.1 Support Checklist

To efficiently handle your request it is necessary to complete our checklist
for support and problem cases (Download). Keep the following information
available before you call:

 Company, name, phone number and email
 Type and serial number of the device (see bottom of device)
 Date and number of sales receipt, name of dealer if necessary
 Issue date of the existing manual
 Nature, circumstances and duration of the problem
 Involved components (such as graphic source/CPU, OS, graphic

card, monitor, USB-HID/USB 2.0 devices, interconnect cable)
including manufacturer and model number

 Results from any testing you have done

9.2 Shipping Checklist

1. To return your device, contact your dealer to obtain a RMA number
(Return-Material-Authorization).

2. Package your devices carefully, preferably using the original box.
Add all pieces which you received originally.

3. Note your RMA number visibly on your shipment.

Devices that are sent in without a RMA number cannot be accepted. The
shipment will be sent back without being opened, postage unpaid.

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