Black Box Home Theater Server ACKMOD21R User Manual

ACXMODH2  
ACXMODH2R  
ACXMODH4  
ACXMODH4R  
ACXMODH6R  
ACXMOD21R  
ACXMODH-RMK  
ACX1MT Series  
ACX1MR Series  
ServSwitch DKM Modular Housings and TX/RX Interface Modules  
Increase the distance between a source (computer,  
CPU) and its console (keyboard, mouse, and other  
peripheral devices).  
Models available for CATx or fiber.  
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)  
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746  
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018  
Customer  
Support  
Information  
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FCC and IC RFI Statements/WEEE/RoHS  
Federal Communications Commission and Industry Canada Radio Frequency Interference  
Statements  
This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict  
accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to  
comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules,  
which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial  
environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own  
expense will be required to take whatever measures may be necessary to correct the interference.  
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to  
operate the equipment.  
This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio  
Interference Regulation of Industry Canada.  
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de  
la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada.  
WEEE  
The manufacturer complies with the EC Directive 2002/96/EG on the prevention of waste electrical and electronic equipment  
(WEEE). The device labels carry a respective marking.  
RoHS  
This device complies with the EC Directive 2002/95/EG on the Restriction of the use of certain Hazardous Substances in electrical  
and electronic equipment (RoHS).  
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NOM Statement  
Instrucciones de Seguridad  
(Normas Oficiales Mexicanas Electrical Safety Statement)  
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado.  
2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.  
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.  
4. Todas las instrucciones de operación y uso deben ser seguidas.  
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca  
de una alberca, etc.  
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante.  
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.  
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación.  
Todo otro servicio deberá ser referido a personal de servicio calificado.  
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato eléctrico  
sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes  
que impidan el flujo de aire por los orificios de ventilación.  
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros  
aparatos (incluyendo amplificadores) que producen calor.  
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como  
se indique en el aparato.  
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.  
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados  
sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.  
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.  
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.  
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo.  
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación.  
18. Servicio por personal calificado deberá ser provisto cuando:  
A: El cable de poder o el contacto ha sido dañado; u  
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o  
C: El aparato ha sido expuesto a la lluvia; o  
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o  
E: El aparato ha sido tirado o su cubierta ha sido dañada.  
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Safety Instructions  
Safety Instructions  
To ensure reliable and safe long-term operation of your DKM Modular Extender, please note the following guidelines:  
Installation  
• Only use in dry, indoor environments.  
• The DKM Modular Extender 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 case.  
• Connect all power supplies to grounded outlets. In each case, make sure 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.  
Repair  
• Do not attempt to open or repair a power supply unit.  
• Do not attempt to open or repair the DKM Modular Extender. There are no user-serviceable parts inside.  
• If there is a fault, contact Black Box Technical Support at 724-746-5500 or [email protected].  
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Table of Contents  
Contents  
1. Specifications........................................................................................................................................................................ 8  
1.1 Interfaces ....................................................................................................................................................................... 8  
1.1.1 DVI-D Single Link................................................................................................................................................ 8  
1.1.2 DVI-I Single Link.................................................................................................................................................. 8  
1.1.3 USB-HID.............................................................................................................................................................. 8  
1.1.4 USB 2.0 (Transparent) ......................................................................................................................................... 8  
1.1.5 RJ-45 (Interconnect) ........................................................................................................................................... 8  
1.1.6 Fiber SFP Type LC (Interconnect)......................................................................................................................... 8  
1.1.7 Serial Interface .................................................................................................................................................... 9  
1.1.8 Analog Audio Interface....................................................................................................................................... 9  
1.1.9 Digital Audio Interface...................................................................................................................................... 10  
1.2 Interconnect Cable .......................................................................................................................................................11  
1.2.1 CATx..................................................................................................................................................................11  
1.2.2 Fiber.................................................................................................................................................................. 12  
1.3 Supported Peripherals ................................................................................................................................................. 13  
1.3.1 USB-HID Devices............................................................................................................................................... 13  
1.3.2 USB 2.0 Devices................................................................................................................................................ 13  
1.4 Connector Pinouts....................................................................................................................................................... 13  
1.5 Power Supply............................................................................................................................................................... 18  
1.6 Environmental Conditions............................................................................................................................................ 18  
1.7 Size ......................................................................................................................................................................... 18  
1.8 Shipping Weight.......................................................................................................................................................... 19  
2. Overview ......................................................................................................................................................................... 20  
2.1 Application.................................................................................................................................................................. 20  
2.2 System Overview......................................................................................................................................................... 20  
2.3 Product Range............................................................................................................................................................. 21  
2.3.1 Basic Modules................................................................................................................................................... 21  
2.3.2 Upgrade Modules............................................................................................................................................. 21  
2.3.3 USB 2.0 Modules.............................................................................................................................................. 22  
2.4 Upgrade Kits ............................................................................................................................................................... 22  
2.5 Accessories.................................................................................................................................................................. 23  
2.6 Device Views ............................................................................................................................................................... 23  
2.6.1 2-Slot DKM Modular Chassis (CPU and CON Modules).................................................................................... 23  
2.6.2 4-Slot DKM Modular Chassis (CPU and CON Modules).................................................................................... 24  
2.6.3 6-Slot DKM Modular Chassis (CPU and CON Modules).................................................................................... 24  
2.6.4 Basic Module ACX1MT-DHID-C/ACX1MR-DHID-C .......................................................................................... 25  
2.6.5 Basic Module ACX1MT -DHID-SM/ACX1MR-DHID-SM .................................................................................... 25  
2.6.6 Basic Module ACX1MT-DVHID-C/ACX1MRDVHID-C ....................................................................................... 26  
2.6.7 Basic Module ACX1MT-DVHID-/ ACX1MR-DVHIDSM ...................................................................................... 26  
2.6.8 Upgrade Module ACX1MT-HID/ACX1MR-HID ................................................................................................. 27  
2.6.9 Upgrade Module ACX1MT-AR/ACX1MR-AR.................................................................................................... 27  
2.6.10 Upgrade Module ACX1MT-DA/ACX1MR-DA ................................................................................................... 28  
2.6.11 Upgrade Module ACX1MT-ARH/ACX1MR-ARH............................................................................................... 28  
2.6.12 Upgrade Module ACX1MT-DAH/ACX1MR-DAH ............................................................................................. 29  
2.6.13 Upgrade Module ACX1MT-DAX/ACX1MR-DAX .............................................................................................. 29  
2.6.14 Upgrade Module ACX1MT-ARD/ACX1MR-ARD............................................................................................... 30  
2.6.15 USB 2.0 Module ACX1MT-U2-C/ACX1MR-U2-C.............................................................................................. 30  
2.6.16 USB 2.0 Module ACX1MT-U2-SM/ACX1MR-U2-SM......................................................................................... 31  
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Table of Contents  
2.7 Status LEDs.................................................................................................................................................................. 31  
2.7.1 Status Basic Module.......................................................................................................................................... 31  
2.7.2 Status Basic Module VGA /DVI-I....................................................................................................................... 32  
2.7.3 Status Upgrade Module Digital Audio .............................................................................................................. 33  
2.7.4 Status Upgrade Module USB-HID..................................................................................................................... 33  
2.7.5 Status USB 2.0 Module..................................................................................................................................... 34  
3. Installation ...................................................................................................................................................................... 35  
3.1 Package Contents........................................................................................................................................................ 35  
3.2 System Setup............................................................................................................................................................... 36  
3.2.1  
Basic Module Setup....................................................................................................................................... 36  
3.2.2 Setup of Upgrade Modules ........................................................................................................................... 37  
3.2.3 Setup of USB 2.0 Modules............................................................................................................................. 37  
3.3  
Example Applications..................................................................................................................................... 37  
4. Configuration..................................................................................................................................................................... 40  
4.1 Transmission Parameters.............................................................................................................................................. 40  
4.2 DDC Settings............................................................................................................................................................... 40  
4.3 Command Mode......................................................................................................................................................... 40  
5. Operation ...................................................................................................................................................................... 42  
6. Troubleshooting ................................................................................................................................................................. 43  
6.1 Blank Screen................................................................................................................................................................ 43  
6.2 USB-HID at the Basic Module......................................................................................................................................44  
6.3 Serial Connection Upgrade Module ............................................................................................................................44  
6.4 Analog Audio Upgrade Module................................................................................................................................... 45  
6.5 Digital Audio Upgrade Module ................................................................................................................................... 45  
6.6 USB-HID Upgrade Module .......................................................................................................................................... 46  
6.7 USB 2.0 Upgrade Module ........................................................................................................................................... 47  
7. Technical Support............................................................................................................................................................... 48  
7.1 Contacting Black Box................................................................................................................................................... 48  
7.2 Shipping and Packaging .............................................................................................................................................. 48  
8. Glossary  
...................................................................................................................................................................... 49  
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Chapter 1: Specifications  
1. Specifications  
1.1 Interfaces  
1.1.1 DVI-D Single Link  
The video interface supports the DVI-D protocol. All signals that comply with the DVI-D Single-Link specification can be  
transmitted. This includes, for example, monitor resolutions such as 1920 x 1200 @ 60 Hz, Full HD (1080p), or 2K HD (up to 2048  
x 1152). Data rate is limited to 165 Megapixels per second.  
1.1.2 DVI-I Single Link  
The video interface supports the DVI-I protocol. All analog (VGA) or digital (DVI) signals that comply with the DVI-I Single-Link  
specification can be transmitted. This includes monitor resolutions for VGA up to 1920 x 1200 @ 60 Hz, and monitor resolutions  
for DVI-I up to Full HD (1080p) or for DVI-D 2K HD (up to 2048 x 1152). Data rate is limited to 165 Megapixels per second.  
NOTE: Transmission of interlaced video signals, such as 1920 x 1080i, cannot be guaranteed.  
1.1.3 USB-HID  
Our devices with an USB-HID interface support a maximum of two devices compliant with the 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 (such as Mac® keyboards) 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 touchscreens, graphics tablets,  
bar-code scanners or special keyboards. Support cannot be guaranteed, however, for every USB-HID device.  
NOTE: Only two USB-HID devices are supported concurrently, such as keyboard and mouse or keyboard and touchscreen. 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.  
1.1.4 USB 2.0 (transparent)  
DKM Modular Extender models with transparent USB 2.0 support allow the connection of all types of USB 2.0 devices (without  
restriction). USB 2.0 data transfer is supported with high-speed USB (max. 480 Mbps).  
Each USB 2.0 port provides a maximum current of 500 mA (high power).  
1.1.5 RJ-45 (Interconnect)  
For CATx communications, the extender requires a 1000BASE-T connection.  
Connector wiring must comply with EIA/TIA-568-B (1000BASE-T), with RJ-45 connectors at both ends. All four cable wire pairs  
are used.  
1.1.6 Fiber SFP Type LC (Interconnect)  
The communication of fiber devices is performed via Gigabit SFPs that have to be connected to suitable fibers fitted with type LC  
connectors (see Chapter 1.2.2).  
NOTE: The correct function of the device can only be guaranteed with SFPs provided by Black Box.  
CAUTION: SFP modules can be damaged by electrostatic discharge (ESD).  
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Chapter 1: Specifications  
When handling, take care not to damage devices.  
1.1.7 Serial Interface  
The serial interface option supports a full-duplex transmission with a real hardware handshake up to a baud rate of 19,200.  
The CON module is cabled as DTE (Data Terminal Equipment, such as CPU output) and can be connected directly to DCE (Data  
Communication Equipment) devices.  
• A touchscreen can be connected directly to the CON module.  
• To connect to a serial printer (or any other DTE instead of DCE device), you need a null-modem cable (cross-over cable)  
between the CON module and the device.  
Operation of several devices:  
The serial interface transmits six signals (three for each direction). Normally, four of the six signals are handshake signals (in  
addition to RxD and TxD). The following configurations, however, are possible using special adapter splitting cables:  
• Three single 2-wire transmissions.  
• Two transmissions with a handshake signal.  
• A serial mouse and a single 2-wire transmission.  
In this case, choose X-ON/X-OFF software handshake for traffic control at the printer and PC.  
Table 1-1. Serial interface specifications.  
Specification  
Connection Format  
Speed  
Description  
DTE (Data Terminal Equipment)  
Up to 19,200 baud  
Format independent  
Data Format  
• RxD (Receive Data)  
• TxD (Transmit Data)  
Data Transmission  
The following signals are transmitted (hardware handshake):  
• RTS (Request to Send)  
Traffic Control  
• CTS (Clear to Send)  
• DTR (Data Terminal Ready)  
• DSR (Data Set Ready)  
1.1.8 Analog Audio Interface  
The Analog Audio option supports a bidirectional stereo audio transmission, in nearly CD quality.  
The audio interface is a “line level” interface and it is designed to transmit the signals of a sound card (or another “line level”  
device) as well as to allow the connection of active speakers to the CON module.  
Stereo audio can be transmitted bidirectionally at the same time.  
Connection of a microphone:  
Connect the microphone to the “audio” input of the CON module. There are two ways to establish this connection:  
• The output of the CPU module is connected with the microphone input of the sound card (red). Adjust the sound card to  
provide an additional amplification (20 dB).  
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Chapter 1: Specifications  
• The output of the CPU module is connected to the audio input of the sound card (blue). Choose this connection if the  
microphone has its own pre-amplifier.  
NOTE: The CON module can do the pre-amplification of the microphone as well. Open the CON module, locate the “MIC” jumper  
on the audio board and close the pins.  
Table 1-2. Analog audio specifications.  
Specification  
Transmission Format  
Signal Level  
Description  
Digitized virtually CD-quality audio (16-bit, 38.4 kHz)  
Line-level (5-volt peak-peak maximum)  
Input Impedance  
47 kOhm  
Connections CPU Unit  
Connections CON Unit  
(2) 3.5-mm stereo audio plug (audio in and audio out)  
(2) 3.5-mm stereo audio plug (audio in and audio out)  
1.1.9 Digital Audio Interface  
The digital audio option supports the unidirectional transmission of digital audio data.  
Up to three sources can be connected to the CPU module. The active source is transmitted. If several sources are active, the XLR  
signal takes priority, otherwise the first active signal.  
Up to three sinks can be connected to the CON module. The signal is available at all outputs concurrently.  
DKM Modular Extender with digital audio option includes a built-in sample rate converter that provides predefined sample  
frequencies at the CON module’s output.  
The user can set the following parameters directly via a configuration file:  
• Activate or deactivate sample rate converter  
• Set sample frequency of the sample rate converter. The following sample frequencies are available:  
– 32.0 kHz  
– 44.1 kHz  
– 48.0 kHz  
– 96.0 kHz  
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Chapter 1: Specifications  
Table 1-3. Digital audio interface specifications.  
Specification  
Compatibility  
Standards  
Description  
AES/EBU, S/PDIF, EIAJCP1201, IEC 60958  
Dolby digital, DTS, PCM  
• Mini XLR (AES/EBU; symmetrical lockable)  
CPU Unit (Inputs)  
• Coaxial (S/PDIF; RCA, Cinch)  
• Optical (S/PDIF, TOSLINK®)  
• Mini XLR (AES/EBU; symmetrical, lockable)  
• Coaxial (S/PDIF, RCA, Cinch  
CON Unit (Outputs)  
• Optical (S/PDIF, TOSLINK)  
1.2 Interconnect Cable  
1.2.1 CATx  
NOTE: A point-to-point connection is required. Operation with several patch fields is possible. Routing over an active network  
component, such as an Ethernet hub, router, or switch, is not allowed.  
• Avoid routing CATx cables along power cables.  
• If the site has 3-phase AC power, make sure that the CPU module and CON module are on the same phase.  
CAUTION: To maintain regulatory EMC compliance, you must use correctly installed shielded CATx cable throughout the  
interconnection link. Also, all CATx cables need to have ferrites on both cable ends close to the device.  
Type of Interconnect Cable  
The DKM Modular Extender requires interconnect cabling specified for Gigabit Ethernet (1000BASE-T). The use of solid-core (24  
AWG), shielded, CAT5e (or better) is recommended.  
Table 1-4. CATx interconnect cable specifications.  
Parameter  
Description  
S/UTP (CAT5e) cable according to EIA/TIA-568-B. Four pairs of  
24 AWG wires. Connection according to EIA/TIA-568-B  
(1000BASE-T).  
CATx solid-core cable 24 AWG  
S/UTP (CAT5e) cable according to EIA/TIA-568-B. Four pairs of  
26/8 AWG wires. Connection according to EIA/TIA-568-B  
(1000BASE-T).  
CATx patch cable 26/8 AWG  
NOTE: You can use flexible cables (patch cables) type 26/8 AWG; however, but you’ll only get half the maximum possible  
extension distance (Table 1-5).  
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Chapter 1: Specifications  
Maximum Acceptable Cable Length  
Table 1-5. Maximum acceptable CATx cable length.  
Cable Type  
Solid-conductor 24 AWG CATx cable  
Maximum Length  
400 feet (140 m)  
Stranded-conductor 26/28 or 27/28 AWG or CATx cable  
200 feet (70 m)  
1.2.2 Fiber  
A point-to-point connection is necessary. Operation with multiple patch panels is allowed. Routing over active network  
components, such as Ethernet hubs, switches, or routers, is not allowed.  
Type of Interconnect Cable  
(Cable notations according to VDE)  
Table 1-6. Fiber cable specifications.  
Cable Type  
Description  
• Duplex.  
Single-mode fiber 9 µm  
• Indoor patch cable (EFN092)  
• Duplex.  
Multimode fiber 50 µm  
Multimode fiber 62.5 µm  
• Indoor patch cable (EFN6020)  
• Duplex.  
• Indoor patch cable (EFN116-LCLC)  
Table 1-7. Maximum acceptable fiber cable length specifications.  
Cable Type  
Description  
Single-mode fiber 9 µm  
Multimode fiber 50 µm (OM3)  
Multimode fiber 50 µm  
32,800 feet (10,000 m)  
3280 feet (1000 m)  
1300 feet (400 m)  
650 feet (200 m)  
Multimode fiber 62.5 µm  
NOTE: If you use single-mode SFPs with multimode fibers, you can normally double the maximum acceptable cable length.  
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Chapter 1: Specifications  
Connector type  
The Modular Extenders have fiber LC connectors.  
1.3 Supported Peripherals  
1.3.1 USB-HID Devices  
The DKM Modular Extender 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 touchscreens may also be compatible.  
It is not possible to guarantee support for all available USB-HID devices. In certain cases, you may need custom firmware.  
USB-HID (and other) devices that are not supported as standard will normally operate with our devices featuring transparent USB  
support.  
NOTE: Concurrent operation of more than two USB-HID devices is not possible even if you use a USB hub.  
1.3.2 USB 2.0 Devices  
DKM Modular Extender models featuring a transparent USB 2.0 connection use Extreme USB Technology. This technology  
supports all types of USB 2.0 devices; however, we cannot guarantee compatibility with every device on the market. Please  
contact Black Box Technical Support at 724-746-5500 or [email protected] if any issues are found.  
1.4 Connector Pinouts  
Figure 1-1. DVI-D connector.  
Table 1-8. DVI-D single-link connector pinout.  
Pin  
Signal  
Pin  
Signal  
Pin  
Signal  
1
TMDS data 2-  
9
TMDS data 1-  
17  
TMDS data 0-  
2
TMDS data 2+  
TMDS data 2 GND  
Not connected  
Not connected  
DDC input (SCL)  
DDC output (SDA)  
Internal use  
10  
11  
12  
13  
14  
15  
16  
C5  
TMDS data 1+  
TMDS data 1 GND  
Not connected  
Not connected  
+5 VDC high impedance  
GND  
18  
19  
20  
21  
22  
23  
24  
C3  
C4  
TMDS data 0+  
TMDS data 0 GND  
Not connected  
Not connected  
TMDS clock GND  
TMDS clock +  
TMDS clock -  
Internal use  
3
4
5
6
7
8
Hot-plug recogniition  
C1  
C2  
Internal use  
Not connected  
GND  
Internal use  
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Chapter 1: Specifications  
Connector DVI-I Single-Link  
Figure 1-2. DVI-I connector.  
Table 1-9. DVI-I single-link connector pinout.  
Pin  
Signal  
Pin  
Signal  
Pin  
Signal  
1
TMDS data 2-  
9
TMDS data 1-  
17  
TMDS data 0-  
2
TMDS data 2+  
TMDS data 2 GND  
Not connected  
Not connected  
DDC input (SCL)  
DDC output (SDA)  
V-sync  
10  
11  
12  
13  
14  
15  
16  
C5  
TMDS data 1+  
TMDS data 1 GND  
Not connected  
Not connected  
+5 VDC high impedance  
GND  
18  
19  
20  
21  
22  
23  
24  
C3  
C4  
TMDS data 0+  
TMDS data 0 GND  
Not connected  
Not connected  
TMDS clock GND  
TMDS clock +  
TMDS clock -  
Blue signal  
3
4
5
6
7
8
Hot-plug recogniition  
C1  
C2  
Red signal  
Green signal  
GND  
H-sync  
Connector USB Type B  
Figure 1-3. USB Type B connector.  
Table 1-10. USB Type B connector pinout.  
Pin  
Signal  
Color  
1
VCC (+5 VDC)  
Red  
2
3
4
Data -  
Data +  
GND  
White  
Green  
Black  
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Connector USB Type A  
Figure 1-4. USB Type A connector.  
Table 1-11. USB Type A connector pinout.  
Pin  
Signal  
Color  
1
VCC (+5 VDC)  
Red  
2
3
4
Data -  
Data +  
GND  
White  
Green  
Black  
Connector Mini USB Type B  
Figure 1-5. Mini USB Type B connector.  
Table 1-12. Mini USB Type B connector pinout.  
Pin  
Signal  
Color  
1
VCC (+5 VDC)  
Red  
2
3
4
5
Data -  
White  
Green  
Data +  
Not connected  
GND  
Black  
RJ-45 connector  
Figure 1-6. RJ-45 connector.  
Table 1-13. RJ-45 connector pinout.  
Pin  
Signal  
Pin  
Signal  
1
D1+  
5
D3-  
2
3
4
D1- -  
D2+  
D3+  
6
7
8
D2-  
D4+  
D4-  
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Fiber SFP Type LC  
Figure 1-7. SFP Type LC connector.  
Table 1-14. SFP Type LC connector pinout.  
Pin  
Signal  
1
Data OUT  
2
Data IN  
Power Supply  
Figure 1-8. Power supply label.  
Table 1-15. Power supply connector pinout.  
Pin  
Signal  
Inside  
VCC (+5 VDC)  
Outside  
GND  
DB9 (Serial)  
Figure 1-9. DB9 serial connector.  
Table 1-16. DB9 serial connector pinout.  
Pin  
Signal  
Pin  
Signal  
1
Not connected  
6
DTR  
2
3
4
5
CTS  
RTS  
7
TxD  
8
RxD  
DSR  
GND  
0
Not connected  
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3.5-mm Stereo Jack Plug  
Figure 1-10. 3.5-mm stereo jack plug.  
Table 1-17. 3.5-mm stereo jack plug pinout.  
Pin  
Signal  
1
GND  
2
3
Audio IN/OUT L  
Audio IN/OUT R  
RCA (Cinch)  
Figure 1-11. RCA connector.  
Table 1-18. RCA connector pinout.  
Pin  
Signal  
1
GND  
2
Data IN/OUT  
Mini-XLR  
Figure 1-12. Mini XLR connector.  
Table 1-19. Mini XLR connector pinout.  
Pin  
Signal  
1
GND  
2
3
Data +  
Data -  
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TOSLINK  
Figure 1-13. TOSLINK connector.  
Table 1-20. TOSLINK connector pinout.  
Pin  
Signal  
1
Data IN/OUT  
1.5 Power Supply  
Power — ACXMODH2/4: 5 VDC;  
ACXMODH6R/21R: 100-240 VAC;  
ACX1MT, ACX1MR models: 5-VDC;  
Basic modules: Single-head devices: 800 mA max.,  
VGA: 900 mA max.;  
Upgrade modules: Analog audio/serial 300 mA max.,  
Digital audio: 300 mA max.,  
USB-HID: 300 mA max.;  
USB 2.0 modules: 2500 mA max.  
1.6 Environmental Conditions  
Temperature Tolerance — Operating: +41 to +113° F (+5 to +45° C)  
Storage Temperature: -13 to +140° F (-25 to +60° C)  
Relative Humidity (Max.) — 80% non-condensing  
1.7 Size  
2-port chassis (fully populated):  
CPU Module/CON Module — 1.6"H x 5.7"W x 5.6"D (4.1 x 14.5 x 14.2 cm)  
Shipping Box — 8.3"H x 5.5"W x 6.5"D (21 x 14 x 16.5 cm)  
4-port chassis (fully populated):  
CPU Module/CON Module — 1.7"H x 11.5"W x 5.6"D (4.1 x 29.3 x 13 cm)  
Shipping Box — 4.5"H x 21.7"W x 14.4"D (11.5 x 55 x 36.5 cm)  
6-port chassis (fully populated:  
CPU Module/CON Module — 1.7"H x 17.5"W x 5.6"D (4.1 x 44.5 x 13 cm)  
Shipping Box — 4.5"H x 29.9"W x 14.4"D (11.5 x 76 x 36.5 cm)  
Modular Cards:  
CPU Module/CON Module — 0.7"H x 5"W x 5.75"D (1.8 x 12.7 x 14.6 cm)  
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1.8 Shipping Weight  
2-port chassis (Empty):  
CPU Module/CON Module — 0.6 lb. (0.3 kg)  
Shipping Box — 4.9 lb. (2.2 kg)  
4-port chassis (Empty):  
CPU Module/CON Module — 0.9 lb. (0.45 kg))  
Shipping Box — 7.5 lb. (3.4 kg)  
6-port chassis (Empty):  
CPU Module/CON Module — 2 lb. (0.85 kg)  
Shipping Box — 10.1 lb. (4.6 kg)  
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Chapter 2: Overview  
2. Overview  
2.1 Application  
The DKM Modular Extender is used to increase the distance between a source (computer, CPU) and its console (keyboard, mouse,  
and other peripheral devices). It’s designed for use with CATx (twisted-pair) interconnect cables or fiber interconnect cables.  
The DKM Modular Extender with CATx interconnect cables won’t work between buildings where you should use a fiber optic  
based product instead.  
The DKM Modular Extender with fiber interconnect cables also works with applications in environments with a great deal of  
electromagnetical interference. Electromagnetical interference can limit the maximum distance und reliability.  
The DKM Modular Extender is fully compatible with the DKM Compact Extender (ACX1T/ACX1R series).  
It’s designed to work in point-to-point applications as well as through a ServSwitch DKM or ServSwitch DKM FX crosspoint  
switch.  
2.2 System Overview  
The DKM Modular Extender consists of at least one CPU module and one console (CON) module. A 2-, 4-, or 6-slot modular  
case holds the modules. The DKM Modular cases (2-slot, 4-slot, or 6-slot) are installed at the CPU (transmitter) and CON (receiver)  
site.  
The CPU module connects directly to the source (computer, CPU) using the supplied cables. The CON module connects to the  
console (monitor, keyboard, and mouse). The CPU module and the CON modules communicate with each other through the  
interconnect cables. Figure 2-1 shows a typical system application. Table 2-1 describes the components shown in the diagram.  
6
1
2
3
4
5
7
Figure 2-1. System diagram.  
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Table 2-1. System components.  
Number  
Component  
1
Source (computer, CPU)  
2
3
4
5
6
7
DKM Modular Extender CPU unit  
Interconnect cable  
DKM Modular Extender CON unit  
Console (monitor, keyboard, mouse)  
Second monitor (option, only with additional basic module  
USB-HID devices (option, only with USB-HID upgrade module  
NOTE: See Section 3.3 for installation examples.  
2.3 Product Range  
2.3.1 Basic Modules  
Table 2-2. Basic modules.  
Part Number  
Description  
Single-head transmitter (CPU) module for (1) DVI-D single link (up to 1920 x 1200 with (2) USB-HID ports  
ACX1MT-DHID-xx  
ACX1MR-DHID-xx  
ACX1MT-DVHID-xx  
Single-head receiver (console [CON]) module for (1) DVI-D single link (up to 2048 x 1152) with (2) USB-HID ports  
Single-head transmitter (CPU) module for DVI-I (VGA/DVI) single link (up to 1920 x 1200) and for DVI-D (up to 2048 x 1152) with (2) USB-HID  
ports and IR remote control  
ACX1MR-DVHID-xx Single-head receiver (console [CON]) module for DVI-D single link (up to 2048 x 1152) with (2) USB-HID ports and IR remote control  
2.3.2 Upgrade Modules  
Table 2-3. Upgrade modules.  
Part Number  
Description  
ACX1MT-HID  
Upgrade module with (2) USB-HID  
ACX1MR-HID  
ACX1MT-AR  
Upgrade module with analog audio/serial (bidirectional)  
ACX1MR-AR  
ACX1MT-DA  
ACX1MR-DA  
ACX1MT-ARH  
ACX1MR-ARH  
ACX1MT-DAH  
ACX1MR-DAH  
ACX1MT-DAX  
ACX1MR-DAX  
ACX1MR-ARD  
ACX1MT-ARD  
Upgrade module with digital audio (unidirectional)  
Upgrade module with analog audio/seral (bidirectional) and (2) USB-HID  
Upgrade module with digital audio (unidirectional) and (2) USB-HID  
Upgrade module with digital audio (bidirectional)  
Upgrade module with digital audio (unidirectional) and analog audio/serial (bidirectional)  
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2.3.3 USB 2.0 Modules  
Table 2-4. USB 2.0 modules.  
Part Number  
Description  
ACX1MT-U2-xx  
USB 2.0 module with (4) USB 2.0 ports  
ACX1MR-U2-xx  
Part numbers for connections via CATx or fiber cable:  
All mentioned devices are available in the following versions:  
• Connection via CATx cable (xx = "C")  
• Connection via multimode fiber cable (x = “MM”)  
• Connection via single-mode fiber cable (x = “SM”)  
Part numbers for CPU module and CON module:  
IMPORTANT! The part numbers for the CPU module and the CON module can be derived from the part number of the complete  
device.  
• CPU module: ACX1MT  
• CON module: ACX1MR  
NOTE: All devices in the ACX1MT/-R DKM Modular series are technically compatible with the devices of the DKM Compact  
Extenders (ACX1T/-R series).  
2.4 Upgrade Kits  
Table 2-5. Upgrade kits.  
Part Number  
Description  
ACXMODH-RMK  
19"/1U rackmount kit for 2-, 4-, and 6-fold chassis  
ACXMODH-DMK  
ACXMODH-R  
Fastening strips for screw or snap on for 2-, 4-, and 6-fold chassis  
Retrolifting for redundant power supply option (without power supply) for 4-fold chassis  
Power supply for 2-fold chassis (spare or redundant)  
ACXMODH-PS2  
ACXMODH-PS4  
ACXMODH-PS6  
ACXMODH21-4S  
ACXMODH21-8S  
Power supply for 4-fold chassis (spare or redundant)  
Power supply for 6-fold chassis (spare or redundant)  
Blind plate 3U/4HP for 2-, 4-, and 6-fold chassis  
Blind plate 3U/8HP for 2-, 4-, and 6-fold chassis  
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2.5 Accessories  
Table 2-6. Accessories.  
Part Number  
Description  
BC00200  
6-foot (1.8-m) serial RS-232 cable  
USB05-0006  
6-foot (1.8-m) USB Type A to B cable  
ACXMODH4-PS  
ACXMODH2-PS  
EVNDVI04-0006  
EVNDVI02-0006  
ACXSPL12  
100–240-VAC/5-VDC/5-A international power supply unit  
100–240-VAC/5-VDC/3-A international power supply unit  
6-foot (1.8-m) VGA cable (VGA to DVI-I)  
6-foot (1.8-m) DVI-D cable (DVI-D)  
DVI-D splitter cable  
EJ110-0005  
5-foot (1.5-m) 3.5-mm stereo jack cable  
5-foot (1.5-m) RCA cable (Cinch male connector)  
3-foot (1-m) TOSLINK cable (F05 male connector)  
EJ514-0005-MM  
EFJ04-001M  
Contact Tech Support at 724-746-5500  
6-foot (1.8-m) Mini-XLR cable (3-pole)  
2.6 Device Views  
2.6.1 2-Slot DKM Modular Chassis (CPU and CON modules)  
CPU and CON module  
Figure 2-2. 2-slot modular chassis (CPU and CON Module) (ACXMODH2R).  
Table 2-7. 2-slot modular chassis components.  
Number  
Component  
1
2
3
4
Slot for module 1  
Connect to 5-VDC power supply (standard)  
Slot for module 2  
Connect to 5-VDC power supply (redundancy, optional)  
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2.6.2 4-Slot DKM Modular Chassis (CPU and CON Modules)  
Figure 2-3. 4-slot modular chassis (CPU and CON module) (ACXMODH4R).  
Table 2-8. 4-slot modular chassis components.  
Number  
Component  
1
2
3
4
5
6
Slot for module 3  
Slot for module 1  
Connect to 5-VDC power supply (standard)  
Slot for module 4  
Slot for module 2  
Connect to 5-VDC power supply (redundancy, optional)  
2.6.3 6-Slot DKM Modular Chassis (CPU and CON Modules)  
Figure 2-4. 6-slot DKM modular chassis (CPU and CON module) (ACXMODH6R).  
Table 2-9. 6-slot DKM modular chassis components.  
Number  
Component  
1
Slot for module 5  
2
3
4
5
6
7
8
Slot for module 3  
Slot for module 1  
Connect to 100-240 VAC power  
Connect to 5-VDC power supply (standard)  
Slot for module 6  
Slot for module 4  
Slot for module 2  
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2.6.4 Basic Module ACX1MT-DHID-C/ACX1MR-DHID-C  
CPU Module, rear view  
CON Module, rear view  
Figure 2-5. ACX1MT-DHID-C module (CPU module) and ACX1MR-DHID-C module (CON module).  
Table 2-10. ACX1MT-DHID-C/ ACX1MR-DHID-C module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
4
Connect to interconnect cable  
To CPU: USB-HID  
To CPU: DVI-D  
2
3
4
Connect to interconnect cable  
Connect to USB-HID devices  
Connect to DVI monitor  
2.6.5 Basic Module ACX1MT-DHID-SM/ACX1MR-DHID-SM  
CPU Module, rear view  
CON Module, rear view  
Figure 2-6. ACX1MT-DHID-SM module (CPU module) and ACX1MR-DHID-SM module (CON module).  
Table 2-11. ACX1MT-DHID-SM/ ACX1MR-DHID-SM module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
4
Connect to interconnect cable  
To CPU: USB-HID  
To CPU: DVI-D  
2
3
4
Connect to interconnect cable  
Connect to USB-HID devices  
Connect to DVI monitor  
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2.6.6 Basic Module ACX1MT-DVHID-C/ACX1MR-DVHID-C  
CPU Module, rear view  
CON Module, rear view  
Figure 2-7. ACX1MT-DVHID-C module (CPU module) and ACX1MR-DVHID-C module (CON module).  
Table 2-12. ACX1MT-DVHID-C/ ACX1MR-DVHID-C module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
4
5
6
Connect to interconnect cable  
To CPU: USB-HID  
2
Connect to interconnect cable  
Connect to USB-HID devices  
IR receiver for remote control  
Connect to DVI monitor  
3
To CPU: DVI-I (VGA/DVI)  
IR receiver for remote control  
Service port (DVI-I)  
4
5
2.6.7 Basic Module ACX1MT-DVHID-SM/ ACX1MR-DVHID-SM  
CPU Module, rear view  
CON Module, rear view  
Figure 2-8. ACX1MT-DVHID-SM module (CPU module) and ACX1MR-DVHID-SM module (CON module).  
Table 2-13. ACX1MT-DVHID-SM/ ACX1MR-DVHID-SM module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
4
5
6
Connect to interconnect cable  
To CPU: USB-HID  
2
Connect to interconnect cable  
Connect to USB-HID devices  
IR receiver for remote control  
Connect to DVI monitor  
3
To CPU: DVI-I (VGA/DVI)  
IR receiver for remote control  
Service port (DVI-I)  
4
5
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2.6.8 Upgrade Module ACX1MT-HID/ACX1MR-HID  
CPU Module, rear view  
CON Module, rear view  
Figure 2-9. ACX1MT-HID-module (CPU module) and ACX1MR-HID module (CON module).  
Table 2-14. ACX1MT-HID/ACX1MR-HID module components.  
CPU unit  
CON unit  
1
To CPU: USB-HID  
1
Connect to USB-HID devices  
2.6.9 Upgrade Module ACX1MT-AR/ACX1MR-AR  
CPU Module, rear view  
CON Module, rear view  
Figure 2-10. ACX1MT-AR module (CPU module) and ACX1MR-AR module (CON module).  
Table 2-15. ACX1MT-AR/ACX1MR-AR module components.  
CPU unit  
CON unit  
1
Connect to serial (DB9)  
Audio IN  
1
Connect to serial DB9  
Audio IN  
2
3
2
3
Audio OUT  
Audio OUT  
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2.6.10 Upgrade Module ACX1MT-DA/ACX1MR-DA  
CPU Module, rear view  
CON Module, rear view  
Figure 2-11. ACX1MT-DA module (CPU module) and ACX1MR-DA module (CON module).  
Table 2-16. ACX1MT-DA/ACX1MR-DA module components.  
CPU unit  
CON unit  
1
S/PDIF input (RCA)  
1
S/PDIF output (RCA)  
2
3
AES/EBU input (Mini-XLR)  
S/PDIF input (TOSLINK®)  
2
3
AES/EBU output (Mini-XLR)  
S/PDIF output (TOSLINK)  
2.6.11 Upgrade Module ACX1MT-ARH/ACX1MR-ARH  
CPU Module, rear view  
CON Module, rear view  
Figure 2-12. ACX1MT-ARH module (CPU module) and ACX1MR-ARH module (CON module).  
Table 2-17. ACX1MT-ARH/ACX1MR-ARH module components.  
CPU unit  
CON unit  
1
Connect to serial (DB9)  
Audio IN  
1
Connect to serial (DB9)  
Audio IN  
2
2
3
4
Audio OUT  
3
4
Audio OUT  
To CPU: USB-HID  
Connect to USB-HID devices  
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2.6.12 Upgrade Module ACX1MT-DAH/ACX1MR-DAH  
CPU Module, rear view  
CON Module, rear view  
Figure 2-13. ACX1MT-DAH module (CPU module) and ACX1MR-DAH module (CON module).  
Table 2-18. ACX1MT-DAH/ACX1MR-DAH module components.  
CPU unit  
CON unit  
1
S/PDIF input (RCA)  
1
S/PDIF output (RCA)  
2
AES/EBU input (Mini-XLR)  
2
AES/EBU output (Mini-XLR)  
3
4
S/PDIF input (TOSLINK)  
To CPU: USB-HID  
3
4
S/PDIF output (TOSLINK)  
Connect to USB-HID devices  
2.6.13 Upgrade Module ACX1MT-DAX/ACX1MR-DAX  
CPU Module, rear view  
CON Module, rear view  
Figure 2-14. ACX1MT-DAX module (CPU module) and ACX1MR-DAX module (CON module).  
Table 2-19. ACX1MT-DAX/ACX1MR-DAX module components.  
CPU unit  
CON unit  
1
S/PDIF input (RCA)  
1
S/PDIF output (RCA)  
2
AES/EBU input (Mini-XLR)  
2
AES/EBU output (Mini-XLR)  
3
4
5
6
S/PDIF input (TOSLINK)  
S/PDIF output (RCA)  
3
4
5
6
S/PDIF output (TOSLINK)  
S/PDIF input (RCA)  
AEX/EBU output (Mini-XLR)  
S/PDIF output (TOSLINK)  
AES/EBU input (Mini-XLR)  
S/PDIF input (TOSLINK)  
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2.6.14 Upgrade Module ACX1MT-ARD/ACX1MR-ARD  
CPU Module, rear view  
CON Module, rear view  
Figure 2-15. ACX1MT-ARD module (CPU module) and ACX1MR-ARD module (CON module).  
Table 2-20. ACX1MT-ARD/ACX1MR-ARD module components.  
CPU unit  
CON unit  
1
S/PDIF input (RCA)  
1
S/PDIF output (RCA)  
2
AES/EBU input (Mini-XLR)  
2
AES/EBU output (Mini-XLR)  
3
4
5
6
S/PDIF input (TOSLINK)  
Connect to serial (DB9)  
Audio IN  
3
4
5
6
S/PDIF output (TOSLINK)  
Connect to serial (DB9)  
Audio IN  
Audio OUT  
Audio OUT  
2.6.15 USB 2.0 Module ACX1MT-U2-C/ACX1MR-U2-C  
CPU Module, rear view  
CON Module, rear view  
Figure 2-16. ACX1MT-U2-C module (CPU module) and ACX1MR-U2-C module (CON module).  
Table 2-21. ACX1MT-U2-C/ACX1MR-U2-C module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
Connect to interconnect cable  
To CPU: USB 2.0  
2
3
Connect to interconnect cable  
Connect to USB 2.0 devices  
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2.6.16 USB 2.0 Module ACX1MT-U2-SM/ACX1MR-U2-SM  
CPU Module, rear view  
CON Module, rear view  
Figure 2-17. ACX1MT-U2-SM module (CPU module) and ACX1MR-U2-SM module (CON module).  
Table 2-22. ACX1MT-U2-SM/ACX1MR-U2-SM module components.  
CPU unit  
CON unit  
1
Service port  
1
Service port  
2
3
Connect to interconnect cable  
To CPU: USB 2.0  
2
3
Connect to interconnect cable  
Connect to USB 2.0 devices  
2.7 Status LEDs  
2.7.1 Status Basic Module  
The basic module has a multicolor LED on both sides to indicate overall status. It also has two additional LEDs on the back side to  
indicate the connection status.  
CPU module, rear view  
CON module, rear view  
Figure 2-18. Status LEDs on the basic module.  
Table 2-23. LED 1 and 2: Connection Status.  
Position  
LED  
Status  
Description  
Off  
Connection available  
1
2
Failure LED (green)  
On or Flashing  
Connection failure (flashing for about 20 seconds following a connection failure)  
Flashing  
On  
No connection via interconnect cable  
Connection available  
Status LED (green)  
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Chapter 2: Overview  
Table 2-24. LED 3: USB and Video Status.  
Color  
Description  
Dark Red  
Device ready  
Red  
Connection available  
Blue  
USB connection available  
Green  
Yellow  
Violet  
Video available  
Connection and USB signal available, no video  
Connection and video signal available, no USB signal  
USB and video signal available, no connection  
Connection, USB, and video signal available (operating status)  
Light Blue  
Turquoise  
2.7.2 Status Basic Module VGA/DVI-I  
The basic module with VGA/DVI-I input has a multicolor LED on the front side of the CPU module to indicate connection status.  
More information is available via on-screen display (OSD) (see the manual for the Media/DVI Converter [ACS411A-R2]).  
CPU module  
Figure 2-19. Front view of the CPU module.  
Table 2-25. LED 3: Connection Status VGA/DVI-I.  
LED  
Description  
Dark Red  
No video signal; monitor not detected  
Red  
Video signal not supported; monitor not detected  
Video signal supported; monitor not detected  
No video signal; monitor detected  
Green  
Blue  
Violet  
Light Blue  
Video signal not supported; monitor detected  
Video signal supported; monitor detected  
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Chapter 2: Overview  
2.7.3 Status Upgrade Module Digital Audio  
The upgrade module digital audio has another multicolor LED on the rear side to indicate the connection status:  
CPU module, rear view  
CON module, rear view  
Figure 2-20. Status upgrade module digital audio.  
Table 2-26. LED 1: Digital Audio Status.  
LED color  
Description  
Red  
No signal  
Cyan  
CPU Unit: S/PDIF signal (RCA) available  
CPU Unit: AES/EBU signal (Mini-XLR) available  
CPU Unit: S/PDIF signal (TOSLINK) available  
CON Unit: Signal available  
Violet  
Blue  
Green  
2.7.4 Status Upgrade Module USB-HID  
The upgrade module USB-HID has three LEDs on the rear side to indicate the connection status:  
CPU module, rear view CON module, rear view  
Figure 2-21. Status upgrade modules USB-HID.  
Table 2-27. LED 1, 2, and 3: Status.  
Description  
Position  
LED  
Status  
Off  
No USB-HID device or not supported; USB device connected  
1, 2  
Device LED (orange) Flashing fast  
On  
USB-HID device active  
USB-HID device ready or DKM Modular Extender in command mode  
• No power supply voltage  
Off  
Status LED (orange)  
Flashing slowly  
• CPU Unit: DKM Modular Extender in command mode or no connection  
• CON Unit: Keyboard in command mode  
CON Unit: DKM Modular Extender in command mode or no connection  
Operating status  
3
Flashing fast  
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Chapter 2: Overview  
2.7.5 Status USB 2.0 Module  
The USB 2.0 module has a multicolor LED on both sides to indicate overall status. It also has two more LEDs on the back side to  
indicate the connection status.  
CPU module, rear view  
CON module, rear view  
Figure 2-22. Status USB 2.0 module.  
Table 2-28. LEDs 1 and 2: Status.  
Description  
Position  
LED  
Status  
Off  
Connection available  
1
2
Failure LED (green)  
On or flashing  
Connection failure (flashing for about 20 seconds following a connection failure)  
No connection via interconnect cable  
Off  
On  
Status LED (green)  
Connection available  
Table 2-29. LED 3: USB 2.0 Status.  
LED color  
Description  
Red  
Device ready  
Green  
Only connection available, no USB 2.0 signal  
Connection available, no USB 2.0 device connected (only CON unit)  
Connection and USB 2.0 signal available (operating status)  
Green/turquoise flashing  
Turquoise  
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Chapter 3: Installation  
3. Installation  
3.1 Package Contents  
Your extender package contains the following items. If anything is missing or damaged, please contact Black Box Technical  
Support at 724-746-5500 or [email protected].  
Basic Modules:  
• DKM Modular Chassis with pre-installed CON/CPU Modules  
• (2) 5-VDC international power supply units  
• (2) country-specific power cords  
• Quick Start Guide  
• (1) DVI video cable (6-ft. [1.8 m], DVI-D male-to-male)  
Figure 3-1. DVI video cable.  
• (1) USB cable (6-ft. [1.8 m], Type A to Type B)  
Figure 3-2. USB cable.  
The basic module VGA (replaces DVI-D cable) also includes:  
• VGA cable (6-ft. [1.8 m], VGA male to DVI-I male)  
Figure 3-3. VGA cable.  
• Infrared remote control  
The upgrade module Analog Audio/Serial also includes:  
• Serial cable (6-ft. [1.8 m], RS-232 male connector)  
Figure 3-4. Serial cable.  
• Stereo jack cable (5.2-ft. [1.6-m], 3.5 mm male connector)  
Figure 3-5. Stereo jack cable.  
The upgrade module Digital Audio also includes:  
• RCA cable (8.2-ft. [2.5 m], Cinch male connector)  
Figure 3-6. RCA cable.  
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Chapter 3: Installation  
• TOSLINK cable (6-ft. [1.8 m], F05 male connector)  
Figure 3-7. TOSLINK cable.  
Figure 3-8. USB cable.  
Figure 3-9. USB cable.  
The upgrade module USB-HID also includes:  
• USB cable (6-ft. [1.8 m], USB Type A to Type B)  
The USB 2.0 module also includes:  
• USB cable (6-ft. [1.8 m], USB Type A to Type B)  
3.2 System Setup  
NOTE: If you are a first-time user, we recommend that you set up the system with the CPU module and the CON module in the  
same room as a test setup. This will enable you to identify and solve any cabling problems, and experiment with your  
system more conveniently.  
NOTE: Verify that interconnect cables, interfaces, and handling of the devices comply with the requirements (see Section 3.1).  
3.2.1 Basic Module Setup  
1. Switch off all devices.  
CON Module Installation  
2. Connect your monitor(s), keyboard, and mouse to the CON module.  
3. Connect the CON module with the interconnect cable(s).  
4. Connect the 5-VDC power supply to the CON module.  
CPU Module Installation  
5. Connect the source (computer, CPU) with the supplied cables to the CPU module. Make sure the cables are not strained.  
6. Connect the CPU module to the interconnect cable(s).  
7. Connect the 5-VDC power supply to the CPU module.  
8. Power up the system.  
NOTE: To power up the system, the following sequence is recommended: Monitor – CON module – CPU module – source.  
NOTE: The basic module with VGA / DVI-I input is connected as mentioned above. Default output video setting is scaled to 1024  
x 768. For a complete and detailed description of the setup and configuration of the VGA option, see the Media/DVI  
Converter (ACS411A-R2) manual.  
NOTE: In the modular chassis, CON modules may be fitted next to CPU modules. The CON/CPU naming convention is based on  
the module rather than on the chassis that holds the modules.  
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Chapter 3: Installation  
3.2.2 Setup of Upgrade Modules  
You can hot-plug the modules.  
Upgrade Module Analog Audio/Serial:  
1. Connect the audio source with the CPU module (for example, CPU audio output with audio input, CPU audio input with audio  
output).  
2. Connect the audio output at the CON module with headphones or suitable speakers.  
3. Connect the audio input at the CON module with a suitable microphone.  
Upgrade Module Digital Audio:  
1. Connect the digital audio source with the suitable audio input of the CPU module.  
2. Connect the audio output of the CON module with suitable speakers or audio amplifiers.  
NOTE: If several active sources are connected, Mini-XLR input takes priority. The audio signal is available at all outputs.  
Upgrade Module USB-HID:  
1. Connect the CPU with the CPU module (USB-HID 2).  
2. Connect the USB-HID devices with the CON module (Connect to USB-HID device 2).  
3.2.3 Setup of USB 2.0 Modules  
1. Connect the CPU with the CPU module (USB 2.0).  
2. Connect the USB 2.0 devices with the CON module (Connect to USB 2.0 devices).  
3.3 Example Applications  
This section illustrates typical installations of DKM Modular Extenders:  
1
2
3
4
5
Figure 3-10. DKM Modular Extender (Single-Head).  
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Chapter 3: Installation  
1
2
3
4
8
5
Figure 3-11. DKM Modular Extender (Single-Head with Digital/Analog Audio).  
6
1
2
3
4
5
7
Figure 3-12. DKM Modular Extender (Dual-Head with 4x USB-HID).  
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Chapter 3: Installation  
Table 3-1. Components in Figures 3-10 through 3-12.  
Number  
Description  
1
2
3
4
5
6
7
8
Source (computer, CPU)  
DKM Modular Extender CPU Unit  
Interconnect cable  
DKM Modular Extender CON Unit  
Console (keyboard, monitor, mouse)  
Second monitor (option, only with dual-head devices)  
USB-HID devices (option, only with [4] USB-HID devices)  
Audio sink (optional, only with devices with analog audio/serial option or digital audio option  
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Chapter 4: Configuration  
4. Configuration  
4.1 Transmission Parameters  
The device operates with a proprietary compression method. In its default configuration, the device adapts dynamically to monitor  
resolution and image content. This configuration works in almost all conditions. Modify it only if image quality is not fully  
satisfactory.  
NOTE: In exceptional cases, detached "frame droppings" (loss of single pictures) or color effects can appear.  
4.2 DDC Settings  
By default, the device sends the factory preset DDC information to the CPU. This information works in most cases.  
During normal operation , you can downoad the console monitor’s DDC information (see Chapter 5).  
For special requirements, DDC information can be retrieved and uploaded as a binary file at both the CPU module and the CON  
module.  
Connect your computer with a USB Mini cable to the CPU module’s or CON module’s service port.  
You can now access the data area of the unit as a flash drive “Extender.”  
Uploading DDC Information  
Copy the binary file containing your specific DDC information to the flash drive of the CPU module or CON module.  
The current DDC information is replaced.  
Retrieving DDC Information  
Copy the file "DDC-EDID.bin" on the flash drive of the CPU module to your computer.  
To open the binary file, you have to install a suitable software, for example, WinDDCwrite (Download), on your computer.  
Reset to Factory DDC Information  
Delete the file called “DDC-EDID.bin” on the flash drive of the CPU module. By deleting this file, the factory DDC Information is  
restored.  
4.3 Command Mode  
During normal use, the console keyboard functions in the usual manner. However, for all KVM Extenders with USB-HID support,  
you can set the keyboard into a Command Mode by using a specific “hotkey” sequence. While in Command Mode, several  
functions are performed via keyboard commands. To exit Command Mode, press <Esc>. While in Command Mode, the LEDs  
Shift and Scroll on the console keyboard will flash.  
NOTE: In Command Mode, normal keyboard and mouse operation will cease. Only selected keyboard commands are available.  
Table 4-1 lists the keyboard commands to enter and to exit Command Mode and to change the hotkey sequence.  
Table 4-1. Keyboard commands.  
Function  
Keyboard Command  
Enter Command Mode  
Exit Command Mode  
Change Hotkey sequence  
2x <Left-Shift>/Hotkey  
<Esc>  
<Left-Ctrl> + <Left-Shift> + <c>, <Hotkey code>, <Enter>  
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Chapter 4: Configuration  
Table 4-2. Keyboard sequences.  
Keyboard Sequence  
Description  
<Key> + <Key>  
<Key>, <Key>  
2x<Key>  
Press keys simultaneously  
Press keys successively  
Press key quickly, twice in a row (similar to a mouse-click)  
You can change the hotkey sequence to enter Command Mode. Table 4-3 lists the hotkey codes for the available key sequences.  
Table 4-3. Hotkey Sequences.  
Hotkey Code  
Hotkey  
1
2
3
4
5
6
7
8
<Left-Ctrl> + <Left-Shift> + <i>  
2x <Scroll>  
2x <Left-Shift>  
2x <Left-Ctrl>  
2x <Left-Alt>  
2x <Right-Shift>  
2x <Right-Ctrl>  
2x <Right-Alt>  
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Chapter 5: Operation  
5. Operation  
Download of DDC Information  
By default, data from the internal DDC list is reported to the source (computer, CPU). If these settings do not lead to a satisfying  
result, you can download and store the console monitor’s DDC information internally. The devices must be configured accordingly  
(see Section 4.2).  
On all KVM Extenders with USB-HID support, the user can load the DDC information of the console monitor via keyboard  
command under operating conditions.  
1. Enter Command Mode with the “hotkey” (see Section 4.2).  
2. Press the <a> key to download the DDC information of the console monitor.  
The screen goes black for a short time. Status LEDs on both CON and then CPU modules will flash to indicate the copy and store  
process.  
At the same time Command Mode is closed and the keyboard LEDs return to previous status.  
This re-adjusts the video mode. You should have optimal screen quality. The CPU should now show the console monitor as the  
current screen, together with the available video resolutions.  
The DDC information of the console monitor was loaded once.  
To re-load the DDC information, repeat the operation.  
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Chapter 6: Troubleshooting  
6. Troubleshooting  
6.1 Blank Screen  
CPU module, rear view  
CON module, rear view  
Figure 6-1. Blank screen.  
Table 6-1. Blank screen troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
LED 3 off  
Power supply  
• Check power supply units and the connection to the power network.  
• Check interconnect cables and connections.  
• Check DVI-D cable to CPU.  
LED 1 on or LED 2 off  
Connection between the CON unit and the CPU unit  
No video signal detected by source (computer, CPU)  
CPU unit: LED 3 red or yellow  
• Download DDC information from console monitors (see Chapter 5).  
Reboot CPU if necessary.  
• Check connection, length, and quality of the DVI-D cable to monitor;  
tighten cable thumbscrews.  
No monitor detected  
CON unit: LED 3 red or yellow  
• Check connection, length, and quality of the interconnect cables  
between the units.  
No video signal detected from CPU unit  
• Download DDC information from console monitors (see Chapter 5).  
Reboot CPU if necessary.  
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Chapter 6: Troubleshooting  
6.2 USB-HID at the Basic Module  
CPU module, rear view  
CON module, rear view  
Figure 6-2. USB-HID at the basic module.  
Table 6-2. USB-HID at the basic module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
Keyboard LEDs Shift and Scroll are blinking  
Keyboard in command mode  
• Press <Esc> to leave command mode  
• Check connection of USB cable to CPU; select another USB  
port if necessary.  
CPU unit: LED 3 green or violet  
No USB connection to CPU  
• Remove USB and power cable and restart CPU. Connect  
power cable first.  
• Check connection of USB cable to USB-HID device.  
CON unit: LED 3 green or violet  
USB device without function  
Problems with USB connection  
• Remove DVI and power cable and restart CON unit. Connect  
power cable first.  
No USB-HID device  
• Connect USB-HID device.  
• Contact Black Box Technical Support at 724-746-5500 or  
[email protected] if necessary.  
USB-HID device is not supported  
6.3 Serial Connection Upgrade Module  
Table 6-3. Serial connection upgrade module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
Settings of the serial interface  
• Check baud rate and general settings.  
No serial connection to CPU  
• Check connection via serial cable.  
• Connect serial end device and switch it on.  
• Check connection via serial cable.  
Serial device not operational  
No serial connection to end device (for example,  
touchscreen, keyboard)  
Touchscreen not operational  
Hardware handshake  
• Adjust serial interface to X-ON/X-OFF software handshake.  
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Chapter 6: Troubleshooting  
6.4 Analog Audio Upgrade Module  
Table 6-4. Analog audio upgrade module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
• Connect analog audio source.  
No audio connection to CPU/audio source  
• Check audio cable.  
• Switch analog audio source on.  
CON unit: No signal at audio output  
No signal  
• Activate analog output at CPU/audio source.  
• Connect analog audio sink and switch it on.  
• Check connection of audio cable.  
No audio connection to audio sink (for example,  
speakers)  
• Connect analog audio source (microphone).  
No audio connection to audio source (microphone)  
No signal  
• Check connection of audio cable.  
• Switch analog audio source on.  
• Activate analog output at audio source.  
CPU unit: No signal at audio output (microphone)  
• Check connection to CPU.  
• Check connection of audio cable.  
• Check audio configuration.  
No audio connection to audio sink (for example, CPU)  
6.5 Digital Audio Upgrade Module  
CPU module, rear view  
CON module, rear view  
Figure 6-3. Digital audio upgrade module.  
Table 6-5. Digital audio upgrade module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
• Connect digital audio source.  
No audio connection to CPU/audio source  
No signal  
• Check connection of audio cable.  
• Switch digital audio source on.  
CPU unit: LED 1 red  
• Activate digital output at CPU/audio source.  
• Connect digital audio sink.  
No audio connection to audio sink (for example, speakers)  
No signal  
• Check connection of audio cable.  
CON unit: LED 1 red  
No signal/LEDs 1 OK  
• Check signal at CPU unit.  
• Check LEDs at CPU unit.  
• Check audio format.  
• Change audio input.  
Digital silence at active audio source  
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Chapter 6: Troubleshooting  
6.6 USB-HID Upgrade Module  
CPU module, rear view  
CON module, rear view  
Figure 6-4. USB-HID at the basic module.  
Table 6-6. USB-HID upgrade module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
• Check connection of USB cable to USB-HID device.  
• Connect USB-HID device.  
LEDs 1 and 2 off  
Device at higher/lower USB-HID port not detected  
• Contact Black Box Technical Support at 724-746-5500  
or [email protected] or your local Black Box subsidiary if  
necessary.  
CPU unit: LED 3 off  
CON unit: LED 3 off  
Connection between CON unit and CPU unit  
Keyboard in command mode  
• Check interconnect cable and connectors.  
• Press <Esc> to leave command mode.  
• Check interconnect cable and connections.  
• Press <Esc> to leave command mode.  
Connection between CON unit and CPU unit  
Keyboard in command mode  
CON unit: LED 3 flashing slowly  
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Chapter 6: Troubleshooting  
6.7 USB 2.0 Upgrade Module  
CPU module, rear view  
CON module, rear view  
Figure 6-5. USB 2.0 upgrade module.  
Table 6-7. USB 2.0 upgrade module troubleshooting.  
Diagnosis  
Possible Reason  
Measure  
• Check connection USB cable to CPU; select another USB port  
if necessary.  
CPU unit: All LEDs off  
No connection to CPU  
• Remove USB and power cable and restart CPU. Connect  
power cable first.  
CON unit: LED 3 red  
Connection between CON unit and CPU unit  
No USB 2.0 device  
• Check interconnect cable and connectors.  
• Connect USB 2.0 device.  
• Check installation at the CPU. Also check to make sure the  
CPU has the necessary drivers.  
CON unit: LED 3 flashing green/turquoise and  
USB 2.0 device without function  
USB 2.0 device is not supported  
• New connection of the USB 2.0 device.  
• Contact Black Box Technical Support at 724-746-5500 or  
[email protected] if necessary.  
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Chapter 7: Technical Support  
7. Technical Support  
7.1 Contacting Black Box  
If you determine that your ServSwitch DKM Extender is malfunctioning, do not attempt to alter or repair the unit. It contains  
no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500 or [email protected] or your local Black  
Box subsidiary.  
Before you do, make a record of the history of the problem. We will be able to provide more efficient and accurate assistance  
if you have a complete description, including:  
• the nature and duration of the problem.  
• when the problem occurs.  
• the components involved in the problem.  
• any particular application that, when used, appears to create the problem or make it worse.  
7.2 Shipping and Packaging  
If you need to transport or ship your ServSwitch DKM Extender:  
• Package it carefully. We recommend that you use the original container.  
• If you are returning the unit, make sure you include everything you received with it. Before you ship for return or repair,  
contact Black Box to get a Return Authorization (RA) number.  
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Chapter 8: Glossary  
8. Glossary  
The following terms are commonly used in this guide or in video and KVM technology:  
Access: A system to operate a source (computer, CPU) from two consoles.  
AES/EBU: Digital audio standard that is officially known as AES3. It’s used to carry digital audio signals between devices.  
CATx: Any CAT5e (CAT6, CAT7) cable  
CGA: The Color Graphics Adapter (CGA) is an old analog graphic standard that displays up to 16 colors and at a maximum  
resolution of 640 x 400 pixels.  
Component Video: The Component Video (YPbPr) is a high-quality video standard that consists of three independently and  
separately transmittable video signals: the luminance signal and two color difference signals.  
Composite Video: The Composite Video is also called FBAS and it is part of the PAL TV standard.  
CON module: Component of a DKM Modular Extender or Media Extender to connect to the console (monitor(s), keyboard and  
mouse; optionally also with USB 2.0 devices).  
Console: Keyboard, mouse and monitor.  
CPU module: Component of a DKM Modular Extender or Media Extender to connect to a source (computer, CPU).  
DDC: The Display Data Channel (DDC) is a serial communication interface between monitor and source (computer, CPU). It can  
exchange data via a monitor cable and the operating system can install and configure a monitor driver automatically.  
Dual-Head: A system with two video connections.  
Dual-Link: A DVI-D interface for resolutions up to 2560 x 2048 that transmits signals up to 330 MPixel/s (24-bit)  
standard are distinguished. The signals have TMDS level.  
DVI-I: A combined signal (digital and analog) that allows running a VGA monitor at a DVI-I port—in contrast to DVI-D (see DVI).  
EGA: The Enhanced Graphics Adapter (EGA) is an old analog graphics standard, introduced by IBM in 1984. It uses a DB9  
connector for connection.  
FBAS: The analog color video baseband signal (FBAS) is also called Composite Video and it is part of the PAL TV standard.  
Fiber: Single-mode or multimode fiber cables.  
KVM: Keyboard, video and mouse.  
Mini-XLR: Industrial standard for electrical plug connections (3-pole) for the transmission of digital audio and control signals.  
Multimode: 62.5µ fiber cable or 50µ fiber cable  
OSD: The on-screen-display displays information or operates a device.  
Quad-Head: A system with four video connections.  
RCA (Cinch): A non-standardized plug connection that transmits electrical audio and video signals, especially with coaxial cables.  
SFP: Small Form Factor Pluggable (SFPs) are pluggable interface modules for Gigabit connections. SFP modules are available for  
CATx and fiber interconnect cables.  
Single-Head: A system with one video connection.  
Single Link: A DVI-D interface that supports resolutions up to 1920 x 1200 by transmitting signals up to 165 Megapixels per  
second (24-bit). Alternative frequencies are Full HD (1080p), 2K HD (2048 x 1080), and 2048 x 1152.  
Single-mode: 9µ fiber cable  
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Chapter 8: Glossary  
S/PDIF: A digital audio interconnect that is used in consumer audio equipment over relatively short distances.  
S-Video (Y/C): The S-Video (Y/C) is a video format that transmits luminance and chrominance signals separately. It has a higher  
quality standard than FBAS.  
TOSLINK: Standardized fiber connection system that digitally transmits audio signals (F05 plug connection).  
Triple-Head: A system with three video connections.  
USB-HID: USB-HID devices (Human Interface Device) allow for data input. There is no need for a special driver during installation;  
“New USB-HID device found” is reported. Typical HID devices include keyboards, mice, graphics tablets, and touchscreens.  
Storage, video, and audio devices are not HID.  
VGA: Video Graphics Array (VGA) is a computer graphics standard with a typical resolution of 640 x 480 pixels and up to  
262,144 colors. It follows the graphics standards MDA, CGA and EGA.  
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NOTES  
ACX1MT  
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Black Box Tech Support: FREE! Live. 24/7.  
Tech support the  
way it should be.  
Great tech support is just 30 seconds away at 724-746-5500 or blackbox.com.  
About Black Box  
Black Box provides an extensive range of networking and infrastructure products. You’ll find everything from cabinets and racks  
and power and surge protection products to media converters and Ethernet switches all supported by free, live 24/7 Tech support  
available in 30 seconds or less.  
© Copyright 2011. Black Box Corporation. All rights reserved.  
ACX1MT, version 1  
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