Amulet Hotkey DXH4 User manual

®
Remote WoRkstation Host CaRds
User manUal
DXH4 and DXH4-M
HB-DXH4-0002
Revision 3.1 June 2018

Thank you
Thank you from everyone at Amulet Hotkey for purchasing this
product. Much me and energy has gone into making this the
best and most reliable soluon available. We are condent we
have provided a state-of-the-art unit that will provide you with
long and reliable service regardless of the applicaon.
To get the best from this product, follow this manual carefully.
Shipment and product inspecon
Your product was carefully packed prior to despatch to
guarantee safe transit. Make sure you thoroughly examine all
packaging and contents for signs of physical damage before use.
If any damage has occurred, nofy the shipping company and
your supplier immediately. Otherwise, claims for damage or
replacement may not be granted.
Retain the original packaging for use in the event that the
equipment has to be stored, shipped or returned for service.
If you choose to dispose of the packaging, please do so in an
environmentally friendly fashion.
Technical support
If you have further quesons , do not hesitate to contact
Amulet Hotkey technical support for expert assistance:
EMEA
[phone]
[e-mail]
N America
[phone]
[e-mail]
South America
[e-mail]
Asia Pacic
[phone]
[e-mail]
Or look at the resources page on our website:
hps://resources.amulethotkey.com/resources.
CAUTION
To prevent damage to the DXH4:
• install in accordance with these instrucons;
• always turn o and unplug the host computer
before handling the DXH4;
• always use appropriate an-stac handling
procedures when handling the DXH4;
• only use the DXH4 within an enclosed
computer case. Do not operate an opened
computer with a DXH4 installed;
• only use aachments and accessories
approved by Amulet Hotkey;
• do not expose this appliance to moisture;
• do not place objects lled with liquids on or
near the appliance;
• clean the product only with a dry cloth;
• refer all servicing to qualied personnel.
WARNING
• The heat sink on the DXH4 card can get
hot when in use. Wait for it to cool before
handling the card.
©2018 Amulet Hotkey Ltd. All rights reserved.
The informaon contained in this document represents the current view of Amulet Hotkey® as of the date of publicaon. Because Amulet Hotkey must respond to
changing market condions, it should not be interpreted to be a commitment on the part of Amulet Hotkey, and Amulet Hotkey cannot guarantee the accuracy of any
informaon presented aer the date of publicaon. Secons of this document are reproduced with the kind permission of Teradici®Corp. This document is for informa-
onal purposes only. Amulet Hotkey make no warranes, express, implied or statutory, as to the informaon in this document. Complying with all applicable copyright
laws is the responsibility of the user. Without liming the rights under copyright, no part of this document may be reproduced, stored in or introduced into a retrieval
system, or transmied in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without express wrien per-
mission from Amulet Hotkey. Amulet Hotkey may have patents, patent applicaons, trademarks, copyrights, or other intellectual property rights covering subject maer
in this document. Except as expressly provided in any wrien license agreement from Amulet Hotkey, the furnishing of this document does not give you any license to
these patents, trademarks, copyrights, or other intellectual property. Teradici, PC-over-IP, and PCoIP are registered trademarks of Teradici Corporaon. VMware and View
are registered trademarks of VMware Corp. Amulet Hotkey and ‘soluons you can bank on’ are trademarks of Amulet Hotkey Ltd. The names of actual companies and
products menoned herein may be the trademarks of their respecve owners.
Remote Workstation Host Cards
Page 2
LASER SAFETY
The DXH4-M may be ed with SFP network
modules that contain Class 1 lasers. The SFP
module emits invisible radiaon which can cause
harm if installed or serviced incorrectly. Follow
the guidelines below:
Warning: Class 1 laser product.
Warning: Invisible laser radiaon can be
emied from the aperture of the SFP port
when no bre is connected. To avoid exposure
to laser radiaon, do not stare into open
apertures.
Warning: Only trained and qualied personnel
may install, replace, or service this equipment.

Declaraon of conformity
This device complies with part 15 of the FCC Rules. Operaon is subject to the following
two condions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operaon.
Title 47, Part 15 (47 CFR 15) of the Federal Communicaons Commission (FCC) Rules and
Regulaons establishes Radio Frequency (RF) emission limits for unlicensed emissions to
provide an interference-free radio frequency spectrum. Many electronic devices, including
computers, generate RF energy incidental to their intended funcon and are, therefore,
covered by these rules. These rules place computers and related peripheral devices into
two classes, A and B, depending upon their intended installaon. Class A devices are those
that may reasonably be expected to be installed in a business or commercial environment.
Class B devices are those that may reasonably be expected to be installed in a residenal
environment (personal computers, for example). The FCC requires devices in both classes to
bear a label indicang the interference potenal of the device as well as addional operang
instrucons for the user. A label on the device shows which class (A or B) the equipment falls
into. Class B devices have an FCC logo or FCC ID on the label. Class A devices do not have an
FCC logo or FCC ID on the label.
The DXH4 has been tested and found to comply with the limits for a Class B digital device,
as dened by Part 15 of the FCC Rules. These limits are designed to provide reasonable
protecon against harmful interference in a residenal installaon. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instrucons, may cause harmful interference to radio communicaons.
However, there is no guarantee that interference will not occur in a parcular installaon. If
this equipment does cause harmful interference to radio or television recepon, which can
be determined by turning the equipment o and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• reorient or relocate the receiving antenna;
• increase the separaon between the equipment and receiver;
• connect the equipment into an outlet on a circuit dierent to that to which the receiver
is connected;
• consult the dealer or an experienced radio or television technician for help.
EU Noce
This product complies with EMC Direcve 2014/30/EU and the Low Voltage Direcve
2014/35/EU. Conformity is shown by compliance with the applicable requirements of the
following documents:
• EN 55032 (Class B) - Emissions
• EN 55024 - Immunity
• EN 61000-3-2 - Power Line Harmonics
• EN 61000-3-3 - Power Line Flicker
• EN 60950 - Product Safety
Health and Safety Information
www.amulethotkey.com | Page 3

Remote Workstation Host Cards
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Contents
1. Before you start ................................... 9
1.1 Introducon ............................................. 9
1.1.1 PCoIP protocol.................................................. 9
1.1.2 Video resoluons.............................................. 9
1.1.3 Acve cooling ................................................... 9
1.2 DXH4 models............................................ 9
1.2.1 Network soluons ............................................ 9
1.2.2 Terminology...................................................... 9
1.3 Simple installaon.................................... 9
1.4 Auxiliary power requirements ................. 9
1.5 SFP modules............................................. 9
1.6 IP and MAC addresses.............................. 9
1.7 Wake on LAN and remote power cycling10
1.7.1 WoL supported ...............................................10
1.7.2 WoL not supported - RPC cable required .......10
1.8 Video inputs........................................... 10
1.8.1 Standard video resoluon ..............................10
1.8.2 High video resoluon .....................................10
1.9 Management tools and connecon
brokers ................................................... 10
2. Your DXH4.......................................... 11
2.1 I/O bracket features ............................... 11
2.2 I/O bracket status LEDs .......................... 12
2.2.1 Key.................................................................. 12
2.2.2 STATUS LED .....................................................12
2.2.3 Network ACTIVITY and network SPEED LEDs .13
2.3 BSM status indicaon ............................ 13
2.4 Recessed buon operaons .................. 13
2.4.1 When the DXH4 is powered up ......................13
2.5 Video inputs........................................... 13
2.5.1 Setup for quad monitors ................................13
2.5.2 Setup for dual monitors .................................13
2.5.3 Use the correct ports......................................13
2.6 Internal card connecons ...................... 14
3. Set up the host card ........................... 15
3.1 STEP 1: Prepare the PC, Workstaon or
server ..................................................... 15
3.2 STEP 2: Fit the correct I/O bracket ......... 15
3.3 STEP 3: Install the DXH4 ........................ 15
3.4 STEP 4: Connect oponal equipment .... 15
3.4.1 Connect auxiliary power (Oponal) ...............15
3.4.2 Connect Remote Power Cable (Oponal).......16
3.4.3 Connect SFP module (DXH4-M only).............. 16
3.5 STEP 5: Connect the video inputs .......... 16
3.6 STEP 6: Connect the DXH4 to the network
............................................................... 16
3.7 STEP 7: Complete the installaon .......... 16
3.8 STEP 8: Connect a zero client to the DXH4
............................................................... 17
3.8.1 Connect to a DXH4 using SLP Discovery .........17
3.9 STEP 9: Change the default password.... 17
3.10 Set up is complete.................................. 17
4. How to install dual DXH4 cards .......... 19
4.1 Before you install the DXH4s.................. 19
4.2 Install the rst DXH4 .............................. 19
4.3 Install the second DXH4 ........................ 20
4.4 Connect to the network......................... 20
4.5 Connect the zero clients to the host PC. 20
4.6 Check the other Ethernet connecon.... 20

Contents
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7.2.1 Auto Detect .................................................... 27
7.2.2 Connect directly to a specied host ..............27
7.2.3 Connect to a choice of hosts using SLP
Discovery ........................................................28
7.2.4 PCoIP Connecon Manager............................28
7.2.5 PCoIP Connecon Manager + Auto-Logon .....28
7.2.6 Connect using VMware View .........................28
7.2.7 Connect with View Connecon Server and
Auto-Logon..................................................... 28
7.2.8 Connect using a connecon broker................28
7.3 Set an automac connecon ................. 29
7.4 Disconnect from a host PC or virtual
desktop .................................................. 29
7.5 Further informaon ............................... 29
8. Manage the network ......................... 31
8.1 Consider network bandwidth
requirements ......................................... 31
8.1.1 Factors aecng bandwidth...........................31
8.1.2 What happens when available bandwidth is
exceeded ........................................................ 31
8.2 Dual redundant network connecons ... 31
8.3 Choose a connecon broker if required 32
8.3.1 Role of the connecon broker........................32
8.3.2 Specify the connecon broker........................32
8.3.3 Using the connecon broker ..........................32
5. Install a DXH4 with a network expansion
card (DXEC) ........................................ 21
5.1 Before you install a network expansion
card ........................................................ 21
5.2 Install the DXH4 ..................................... 21
5.3 Install the network expansion card........ 21
5.4 Connect the zero client to the host PC .. 21
5.5 Check the DXH4 Ethernet connecon.... 21
6. Introducon to PCoIP......................... 23
6.1 What is PCoIP?....................................... 23
6.1.1 Host rendering................................................23
6.1.2 Mul-codec display processing ......................24
6.1.3 Dynamically adapts to network condions ....24
6.2 About PCoIP hosts.................................. 24
6.2.1 Host funcon.................................................. 24
6.2.2 Host types.......................................................24
6.3 About PCoIP zero clients........................ 24
6.3.1 Funconality................................................... 24
6.3.2 Data handling .................................................24
6.4 Benets of PCoIP zero clients................. 24
6.4.1 Increased security ..........................................24
6.4.2 Low maintenance ...........................................25
6.4.3 Cost savings .................................................... 25
6.5 PCoIP management tools....................... 25
6.5.1 PCoIP Management Console ..........................25
6.5.2 Administrave Web Interface (AWI)...............26
6.5.3 On Screen Display (OSD)................................. 26
7. Set up a PCoIP session........................ 27
7.1 Power up the zero client ........................ 27
7.2 Types of PCoIP session .......................... 27

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9. Addional informaon....................... 33
9.1 Make sure the DXH4 rmware is up to
date ....................................................... 33
9.1.1 Check the BSM rmware on an individual host
card................................................................. 33
9.1.2 How to remove the DXH4............................... 33
9.2 Fan maintenance ................................... 33
9.2.1 Fan fault LED indicaon (rmware dependent)
........................................................................ 33
9.3 Check the funcon of the Ethernet
connecon in an octal conguraon ..... 34
10. Technical specicaons...................... 35
10.3.1 Warranty......................................................... 35
10.3.2 Technology ..................................................... 35
10.3.3 Environment ................................................... 36

Contents
www.amulethotkey.com | Page 7
List of gures
Figure 1:Front panel features�������������������������������������������������������������������������������������������������������������������������� �11
Figure 2:STATUS (link) LED������������������������������������������������������������������������������������������������������������������������������� �12
Figure 3:Network LEDs on the DXH4 ����������������������������������������������������������������������������������������������������������������13
Figure 4: ����������������������������������������������������������������������������������������������������������������������������� �14
Figure 5:Examples of PCIe slots����������������������������������������������������������������������������������������������������������������������� �15
Figure 6:PCIe auxiliary power socket����������������������������������������������������������������������������������������������������������������15
Figure 7: ������������������������������������������������������������������������������������������������������������������������ �16
Figure 8:Example SFP modules������������������������������������������������������������������������������������������������������������������������ �16
Figure 9:������������������������17
Figure 10:���������������������������������������������������������������������������������������������������������� �19
Figure 11:PCIe slot examples��������������������������������������������������������������������������������������������������������������������������� �19
Figure 12:Connect the PCIe and Interlink cables���������������������������������������������������������������������������������������������
Figure 13:Check the status LEDs ��������������������������������������������������������������������������������������������������������������������� 
Figure 14:Typical PCoIP set up ������������������������������������������������������������������������������������������������������������������������ �23
Figure 15:PCoIP Management Console home page ���������������������������������������������������������������������������������������� �25
Figure 16: �������������������������������������������������������������������������������������������������������� �26
Figure 17:OSD Connect screen ������������������������������������������������������������������������������������������������������������������������ �26
Figure 18:������������������������������������������������������������������������������������������������������ �27
Figure 19:�������������������������������������������������������������������������������������������������������� �27
Figure 20:���������������������28

Remote Workstation Host Cards
Page 8
List of tables
Table 1: �������������������������������������������������������������������������������������������������������������������12
Table 2: ����������������������������������������������������������������������������������������������������������� �13
Table 3: ����������������������������������������������������������������������������������������������������������������13
Table 4:Zero client management tools������������������������������������������������������������������������������������������������������������ �25
Table 5:PCoIP bandwidth requirements�����������������������������������������������������������������������������������������������������������31
Table 6: ������������������������������������������������������������������������������������35
Table 7:���������������������������������������������������������������������������������������������������������������36
Figure 21: ����������������������������������������������������������������������������������������������������28
Figure 22: ����������������������������������������������������������������������������������28
Figure 23: ���������������������������������������������������������������������������������������������������29
Figure 24:����������������������������������������������������������������������������������������������������������29
Figure 25:Status LEDs on the DXH4����������������������������������������������������������������������������������������������������������������� �34

www.amulethotkey.com | Page 9
BefoRe you staRt 1
1. Before you start
This manual is for the Amulet Hotkey DXH4 and DXH4-M Remote
Workstaon Host Cards. Before you install the DXH4 or DXH4-M,
make sure you read the following informaon.
1.1 Introducon
The Amulet Hotkey DXH4 is a PCoIP workstaon host card for
remote desktop applicaons that require pixel-perfect video
across mulple monitors.
1.1.1 PCoIP protocol
The DXH4 uses the Tera2240 PCoIP processor to remote up to
four heads of prisne graphics in a secure and responsive way.
1.1.2 Video resoluons
It is an ideal host soluon for remote desktop applicaons that
require pixel perfect video across mulple monitors.
A single DXH4 card can support either
• four normal resoluon 1920 x 1200 displays, or;
• two high resoluon 2560 x 1600 displays.
1.1.3 Acve cooling
The DXH4 uses dynamic fan cooling. The fan operates between
0-100% as required, depending on load and ambient condions.
1.2 DXH4 models
The DXH4 is a x4 PCI express (PCIe) card that also ts in x8 and
x16 slots. It is available with the following variaons:
1.2.1 Network soluons
DXH4: The standard card has a single RJ45 network port;
DXH4-M: This model has a single network port that accepts
either a ber or copper SFP module (see 1.5 and Figure 1).
1.2.2 Terminology
The general term ‘host card’ is used throughout this manual to
describe all network and thermal variants.
1.3 Simple installaon
Installaon is simple. The DXH4 has a half-height, half-length
form factor. Low-prole (half-height) and standard prole
(already ed) I/O brackets are included in the kit.
The DXH4 requires no special drivers and installs into a PCIe
slot (it can also run in standalone mode). The kit includes four
bridging cables to connect video outputs from the graphics cards
to Mini DisplayPorts on the DXH4.
1.4 Auxiliary power requirements
Some versions of the DXH4 include a supplemental power socket
(see 3.4.1 Connect auxiliary power (Oponal)). If this socket is
ed, you can use it to power a DXH4 when there are no free
PCIe sockets in the host computer.
Note: If you want to use a single DXH4 solely to provide
addional video channels, it is possible to power the DXH4
from the supplemental power socket while using a local USB
keyboard and mouse to control the host computer.
1.5 SFP modules
Amulet Hotkey can provide a range of suitable SFP modules,
including 1Gbps and 100Mbps ber SFP modules for single or
mul-mode ber and copper SFP modules with RJ45 connectors.
See the Amulet Hotkey SFP Modules Datasheet for details of
currently available modules.
Be aware that SFP modules have diering specicaons, and
the distances over which they can drive a signal can vary. This
especially applies to ber SFP modules.
Important! The DXH4-M only supports certain models of SFP
module. If in doubt, contact Technical Support for advice.
1.6 IP and MAC addresses
Before you set up a host card, make a note of these details:
• MAC and IP address of the remote PCoIP host;
• MAC and IP address of the zero client.

Remote Workstation Host Cards
Page 10
1.8 Video inputs
1.8.1 Standard video resoluon
The DXH4 can support a standard video resoluon of
1920 x 1200 on four screens when all four video inputs are used.
1.8.2 High video resoluon
The DXH4 can support a high video resoluon of
2560 x 1600 on two screens when two video inputs are used.
Note: The DisplayPort video inputs are dual mode. This means
you can connect both DisplayPort and DVI-D outputs to the
DXH4 video inputs using suitable cable adaptors.
1.9 Management tools and connecon brokers
Management tools are available to establish and congure PCoIP
links between the DXH4 and a zero client. You can connect a zero
client directly to a DXH4 card.
Alternavely, you can congure zero clients to use a third party
connecon broker (such as VMware View Connecon Server)
to dynamically assign DXH4 hosts to zero clients based on the
identy of the end-user. Connecon brokers can also allocate a
pool of DXH4 hosts to a group of zero clients.
See 8.3 for more informaon.
You will nd the MAC address informaon wrien on the
underside of the zero client and on the conguraon record/
serial number label of the remote host. You can also use the AWI
(see 6.5.2) to nd the MAC addresses
If your network uses DHCP, the host and zero client obtain
their IP addresses from the DHCP server. If no DHCP server is
available, the host and zero client me out aer approximately
two minutes and adopt the following default IP addresses:
• Zero client: 192.168.1.50
• Host card: 192.168.1.100
1.7 Wake on LAN and remote power cycling
By default, the DXH4 supports Wake on LAN (WoL), allowing
users to wake up the host from standby. To power down or
power cycle the host computer from a remote zero client
requires the installaon of a Remote Power Cable (RPC).
There are two opons for seng up WoL depending on whether
your system supports it directly or not:
• WoL supported;
• WoL not supported - RPC cable required.
1.7.1 WoL supported
Most computers support WoL, though it may not be enabled by
default. When WoL is enabled on the host computer, end-users
can wake up the host computer automacally when they
connect to it from a remote zero client.
WoL requires appropriate BIOS support. Refer to your host
computer documentaon for details about enabling this feature.
Example: To enable WoL for Windows 8 computers, you must
edit the Magic Packet and power management properes of
the appropriate network adapter.
1.7.2 WoL not supported - RPC cable required
For an alternave setup, you can install a Remote Power Control
(RPC) cable assembly to interpose the DXH4 between the host
computer’s power switch and the associated motherboard
header (see 3.4.2 Connect Remote Power Cable (Oponal)).
Specically, connect the RPC cable to the RPC socket on the
DXH4 (see 2.6 Internal card connecons).
This allows users to power cycle the host computer from a
remote zero client. Unlike the WoL setup, the RPC setup also
allows users to power cycle, power up and fully power down the
remote PC (for example, if it has blue-screened).
Aer connecng the RPC cable assembly:
• users of Amulet Hotkey DX zero clients can use the On
Screen Display (OSD) to power cycle the host computer.

www.amulethotkey.com | Page 11
youR dXH4
2. Your DXH4
The DXH4 has four LEDs, a network port, four video input
sockets and a recessed buon. These are described in the
secons that follow.
2.1 I/O bracket features
The standard DXH4 has a small (half-height and half-length)
form- factor.
The DXH4 also comes with a standard-prole (full height)
I/O bracket included in the kit.
See Figure 1 for the following descripon:
1
1
2 3 4 5 6
7Half-height DXH4-M with
SFP network connection
Full-height DXH4 with
RJ45 network connection
2
Figure 1: Front panel features
1. Network port: The standard DXH4 has an RJ45 socket. The
DXH4-M has a socket that accepts an SFP module. See the
SFP Datasheet for details of modules available separately
from Amulet Hotkey.
2. Network SPEED LED: Indicates the network speed. See 2.2.3
for details.
3. Network ACTIVITY LED: In normal operaon, this LED shows
network acvity. It can also show progress for rmware
updates. See 2.2.3 for details.
4. Network STATUS LED: Shows the PCoIP link status. See 2.2.2
for details.
5. Int Fn LED: Reserved for future use.
6. Recessed buon: Insert a paper-clip into the hole to press
the recessed buon. See 2.4 for details.
7. DisplayPort connector: The DXH4 has four Mini DisplayPort
video inputs.

Remote Workstation Host Cards
Page 12
2.2 I/O bracket status LEDs
The status LEDs on the I/O bracket (see Figure 1) show the status
of the network connecon including:
• the connecon type and speed;
• the current network acvity;
• the status of the PCoIP connecon to a zero client.
There are four LEDs on the front panel:
• INT FN LED (not used);
• STATUS (link) LED;
• ACTIVITY (PCoIP) status LED;
• and the SPEED status LED.
See Figure 1, Figure 2 and Figure 3.
2.2.1 Key
The tables in this secon use the following convenons:
• Color - LED is on steady;
• Flash - LED is on and o evenly;
• Blink - LED is on more than o;
• Wink - LED is o more than on.
2.2.2 STATUS LED
The host card has a STATUS (link) LED to indicate the type and
status of the network connecon.
STATUS (link) LED
Figure 2: STATUS (link) LED
The STATUS LED displays the following indicaons.
LED status Meaning
O No PCoIP link is established
Green wink Copper network connecon is detected (SFP
module or RJ45). Network link is not in session
Green Copper network connecon with link
established (SFP module or RJ45)
White ash BSM status indicaon. See 2.3.
Red wink Minor card error (for example cooling fan not
working).
Red ash Major card error
Red Power error
For SFP Modules only:
Green wink SFP copper network connecon is available but
not in session (or no SFP module inserted)
Blue wink SFP ber network connecon is available but
not in session (or no SFP module inserted)
Blue SFP ber module detected; connected to
network
Cyan wink SFP module is not recognized
Table 1: 

Your DXH4
www.amulethotkey.com | Page 13
2. SPEED status LED
Status Meaning
O No network connecon
Amber 100 Mbit/s connecon
Green 1 Gbit/s connecon
White ash BSM status indicaon. See 2.3.
Table 3: 
2.3 BSM status indicaon
When power is applied to the Board Support Micro-controller
(BSM) or when the BSM is reset (for example, aer a successful
rmware update), all LEDs simultaneously ash white (or very
pale blue) for one second.
2.4 Recessed buon operaons
2.4.1 When the DXH4 is powered up
A long press (hold the buon for ve seconds or more) toggles
the Board Support Micro-controller (BSM) network interface ON
or OFF.
Note: When the network interface is ON, you can update
DXH4 rmware remotely by transferring a rmware package
to the BSM.
2.5 Video inputs
2.5.1 Setup for quad monitors
The maximum video resoluon is 1920 x 1200 per input.
2.5.2 Setup for dual monitors
If you need higher resoluon monitors (up to 2560 x 1600
maximum), you can only use two video inputs on the DXH4.
2.5.3 Use the correct ports
You can use any of the available video inputs, make sure that the
monitors are plugged into the two corresponding video outputs
on the zero client. It is a good idea to use video inputs 1 and 2
on the DXH4 and video outputs 1 and 2 on the zero client.
Use the supplied video cables to connect the DXH4 video inputs
to outputs on the host computer’s graphics card.
Note: The DisplayPort video inputs are dual mode. This means
you can connect both DisplayPort and DVI-D outputs to the
DXH4 video inputs using suitable cable adaptors.
2.2.3 Network ACTIVITY and network SPEED LEDs
The host card has two network LEDs, ACTIVITY (link) and SPEED
(see Figure 3) on the rear panel that operate as follows:
SPEED LED ACTIVITY LED
Figure 3: Network LEDs on the DXH4
1. Network ACTIVITY LED
In normal operaon, this LED shows network acvity and
connecon type. It can also show progress for rmware updates.
NORMAL MODE
Status Meaning
O No network connecon
Green Network connecon full duplex; no trac
Green blink Network connecon full duplex; trac detected
Red wink
Fault with Teradici PCoIP: Half duplex
connecon
Warning: A half duplex connecon will severely
limit a user’s experience. PCoIP sessions may
disconnect with large packet losses reported in
the PCoIP connecon stascs.
White ash BSM status indicaon. See 2.3.
FIRMWARE UPDATE MODE
Status Meaning
Amber BSM network port is open and aempng to
obtain a DHCP address
Blue
BSM network port is open and has a valid IP
address (either a DHCP address or the BSM
fall-back address of 192.168.1.75)
Blue wink
BSM update is complete. The BSM network
port is closed. Restart the host computer at a
convenient me to apply the new rmware
Red wink
BSM update failed to complete (the checksum
validaon failed). The BSM network port
is closed. Restart the host computer at a
convenient me to ush the new rmware from
ash memory
White BSM status indicaon. See 2.3.
Table 2: 

Remote Workstation Host Cards
Page 14
5. Auxiliary (‘aux’) power socket: Use this socket to power
a DXH4 card if there are no free PCIe sockets in the host
computer. See secon 4.3 for details.
6. RPC socket: If required, this socket connects the DXH4 to the
motherboard using a suitable Remote Power Control (RPC)
cable assembly. This connecon may be required to power
cycle the host computer from a remote zero client.
See 1.7 Wake on LAN and remote power cycling for details.
7. Micro-USB Type AB: This socket is not currently used by the
DXH4, but allows an internal connecon to a USB port on
the host computer. Future versions of the DXH4 may use this
socket for rmware updates or other new features.
8. PCIe x4 edge connector: This ×4 connector ts into a PCIe
slot. It is also compable with x8 and ×16 slots.
Figure 4: 
2.6 Internal card connecons
The DXH4 card has several internal sockets and jumpers. These
connecons are not accessible through the I/O bracket.
1. Factory default reset jumper pin: (Jumper is not ed) As
an alternave to using the recessed buon (see 2.1), you can
use this jumper to restore the DXH4 factory sengs. Close
the contacts then power up the host computer.
Before reconguring a DXH4 that has been reset, you must
power down the host computer and remove the jumper.
2. Serial output jumper pins: Reserved for factory use.
3. Fan: The fan speed adjusts automacally between 0-100%,
depending on load and environmental condions.
Note: If prevailing condions do not require fan-cooling,
the fan may not spin at all. However, it will sll acvate briey
every hour for self-tesng.
4. Inter-card connecon socket: This socket is used to connect
two DXH4s together for a maximum of eight displays (octal
mode), or for connecng the DXEC expansion card.
See 4. How to install dual DXH4 cards and 5. Install a DXH4
with a network expansion card (DXEC) for how to do this.
2
8
1 3 4 5
6
7

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install tHe dXH4
3. Set up the host card
This secon describes how to set up your DXH4. For card
informaon, see 2. Your DXH4.
3.1 STEP 1: Prepare the PC, Workstaon or server
Cauon:! The host PC must be switched o before you install or
remove the DXH4.
1. Turn o the host computer.
2. Unplug the power cable.
3. Wait at least 60 seconds to allow the internal power rails to
fully discharge.
4. Remove any covers to provide access to the PCIe sockets.
3.2 STEP 2: Fit the correct I/O bracket
Before you install the DXH4 card, make sure that the correct
bracket (full-height or half-height) is installed.
To change the bracket:
1. Remove the screws from the bracket and retain.
2. Remove the bracket.
3. Hold the other bracket in posion and replace the screws.
3.3 STEP 3: Install the DXH4
Cauon:! Make sure you wear a wriststrap and follow an-stac
precauons before you handle any cards, or work on the PC.
1. Make a note of the MAC address on the label of the DXH4.
You may need this when pairing the DXH4 to a zero client.
2. Carefully install the DXH4 into a free x1, x4, ×8 or ×16 PCIe
socket. See Figure 5. Secure in place.
3
x16 PCIe slotx1 PCIe slot x4 PCIe slot
3.4 STEP 4: Connect oponal equipment
3.4.1 Connect auxiliary power (Oponal)
The DXH4 can accept connecon to auxiliary power within the
host PC or Workstaon (depending on your system) if no PCIe
slot is available.
Contact Amulet Hotkey for auxiliary power cable advice.
1. If required, connect the host system’s power or motherboard
power supply to the auxiliary PCIe power socket. See Figure 6.
Auxilliary power
connectors
Figure 6: PCIe auxiliary power socket
Figure 5: Examples of PCIe slots

Remote Workstation Host Cards
Page 16
3.4.2 Connect Remote Power Cable (Oponal)
Important! Some workstaons may require a RPC to
implement remote power-cycling. See 1.7 Wake on LAN and
remote power cycling.
Note: The DXH4 comes with a generic RPC cable assembly.
We recommend that you contact Amulet Hotkey technical
support to make sure this is suitable for your needs.
1. Disconnect the exisng power cable between the power
buon (4) and the motherboard (3). See Figure 7.
2. Connect the RPC cable (1) between the RPC socket on the
DXH4 (2) and the motherboard (3) and the PC power buon (4).
2 1
3
4
Figure 7: 
Key to Figure 7.
1. RPC assembly. 2. RPC socket on the DXH4 3. Motherboard
power switch header on the host computer 4. Front panel power
switch on the host computer
3.4.3 Connect SFP module (DXH4-M only)
1. Fit the required SFP module into the DXH4-M network
socket.
This socket accepts a copper or bre SFP module. The module
can be 1 Gbit/s or 100 Mbit/s. See the SFP modules datasheet
for more details of available modules.
Figure 8: Example SFP modules
3.5 STEP 5: Connect the video inputs
1. For quad monitors, use the supplied video cables to
connect each of the DXH4 video inputs to outputs on the host
computer’s graphics card.
2. For dual monitors, you can use any of the available video
inputs, but the monitors must plug into the two corresponding
video outputs on the zero client.
Important! It is best to use video inputs 1 and 2 on the DXH4
and video outputs 1 and 2 on the zero client.
3.6 STEP 6: Connect the DXH4 to the network
1. Connect a network cable to the DXH4.
3.7 STEP 7: Complete the installaon
1. Re-assemble the host computer, make sure all blanking
plates are ed, and reconnect the power cable.
2. Restart the computer.
The operang system detects the DXH4 and locates the
appropriate drivers.
3. Install the driver on the host computer.
4. (Oponal) If you need to install a second DXH4, see 4. How to
install dual DXH4 cards.
5. (Oponal) If you need to install a network extender card, see
5. Install a DXH4 with a network expansion card (DXEC).
Note: You may not install dual DXH4s and a network extender
card in the same installaon.

Install the DXH4
www.amulethotkey.com | Page 17
3.8 STEP 8: Connect a zero client to the DXH4
1. Install and power up a zero client.
If you are not sure how to do this, see the relevant Amulet
Hotkey user manual or Quick Start Guide for the zero client.
Aer powering up the zero client, you are ready to establish a
new PCoIP session.
The zero client connects to the DXH4 via the network port.
Note: We recommend reading 6. Introducon to PCoIP rst if
you are not already familiar with the concept of PCoIP.
3.8.1 Connect to a DXH4 using SLP Discovery
Important! This is one method you can use to quickly
connect your zero client to a host. For a detailed descripon
of all connecon methods, see 7. Set up a PCoIP session.
If the zero clients and PCoIP hosts reside on the same subnet,
you can use the Direct to Host + SLP session connecon type to
discover available PCoIP hosts on the subnet.
You must know the IP address (or MAC address) of the PCoIP
host that you want to connect to.
1. Select the Direct to Host + SLP Host Discovery session
connecon type from the drop down list.
Figure 9: 
available PCoIP hosts discovered
2. Select the host you want and click OK.
If the zero client successfully connects to the host, the front
panel PCoIP status LED illuminates green to indicate an acve
session.
3. (Oponal) You can also set the Enable Auto-Reconnect in the
advanced sengs to remember the last connected PCoIP host.
Note: You must also congure a Direct from Client session
connecon type on the host.
3.9 STEP 9: Change the default password
1. For security, we recommend that you change the default
password for your DXH4 at the earliest possibility.
Important! You must enter a password before changing
the conguraon of host cards and zero clients. The factory
pre-set password for all Amulet Hotkey host cards and zero
clients is ahkdante.
3.10 Set up is complete
If you wish to read further about network consideraons, refer
to 8. Manage the network.
For any conguraon or deployment issues refer to
9. Addional informaon or contact Technical Support
department (see contact details at the start of this manual).

Remote Workstation Host Cards
Page 18

www.amulethotkey.com | Page 19
install dual dXH4 CaRds 4
4. How to install dual DXH4 cards
To set up an eight display conguraon (octal mode), install two
DXH4s and connect them with two zero clients.
This informaon tells you how to install two DXH4s into a regular
PC. There may be slight variaons for other PCs or workstaons.
Note: There are three network soluons. See Figure 10.
A. Two DXH4 cards with independent network links
B. Two DXH4 cards with a single network link, linked internally
C. Two DXH4 cards with a two network links, linked internally
Cauon:! Do not install dual DXH4 cards with two network
links (Opon C below) onto a single network unless that network
supports Spanning Tree Protocol (STP).
Single network link
with interlink cable
Two network links
without interlink cable
AAA B
Dual network link
with interlink cable
C
Figure 10: 
4.1 Before you install the DXH4s
1. Make sure that the PC power cable is unplugged before you
install the DXH4s.
2. Make sure you wear a wriststrap or follow suitable an-stac
precauons before you handle any cards or work on the PC.
3. Make a note of the MAC address on the label on each DXH4.
Example: MAC: 00 17 FD 46 03 56
4.2 Install the rst DXH4
You will need one interlink cable to connect the DXH4 cards.
1. (For network soluon B only) Connect one end of the
interlink cable to the connector on the rst DXH4.
2. Install the rst DXH4 into any free x8 or x16 PCIe slot in the
host PC. See Figure 11.
x16 PCIe slotx1 PCIe slot x4 PCIe slot
Figure 11: PCIe slot examples

Remote Workstation Host Cards
Page 20
Figure 13: Check the status LEDs
3. Connect a zero client to the rst DXH4.
Example: Set the connecon type to SLP and Host Discovery
and select the MAC address from the available list of hosts on
each zero client.
4. Connect a zero client to the second DXH4.
4.6 Check the other Ethernet connecon
1. Make sure that eight heads of video are present.
2. Disconnect the Ethernet cable from the rst DXH4 and
connect to the second DXH4.
When you swap the cable from the rst DXH4 to the second
DXH4 the zero clients temporarily indicate a loss of signal and
then recover the connecon.
The SPEED LED lights AMBER and ON, the ACTIVITY LED
ashes GREEN on the DXH4 connected to the Ethernet cable.
4.3 Install the second DXH4
1. (For network soluon B only) Connect the free end of the
interlink cable to the second DXH4.
2. Install the second DXH4 into any free x1, x4, x8 or x16 PCIe
slot in the host PC.
DXH4s
Interlink
cable
connectors
Interlink
cable
Figure 12: Connect the PCIe and Interlink cables
3. Make sure the DXH4 mounng bracket is xed securely in the
PC.
4.4 Connect to the network
1. For network soluon B: connect an Ethernet cable to one of
the DXH4s.
2. For network soluon A: connect an Ethernet cable to both
DXH4s.
4.5 Connect the zero clients to the host PC
1. Connect the power cable to the PC
2. Turn on the host PC and wait for both DXH4s to power up.
See Figure 13.
The STATUS and INT FN LEDs are GREEN and ash on both
DXH4s.
The ACTIVITY LED ashes GREEN to show network acvity,
the SPEED LED is AMBER (or GREEN depending on link speed)
and ON on the DXH4 connected to the Ethernet cable.
The ACTIVITY and SPEED LEDs are OFF on the DXH4 with no
Ethernet cable.