Black Box ACX1004 SERIES User manual

24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COM
DKM TC KM
SWITCH W/
HID PORTS
USER MANUAL
ACX1004, ACX1008 SERIES

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TABLE OF CONTENTS
SAFETY INSTRUCTIONS .................................................................................................................................................................. 4
1. SPECIFICATIONS........................................................................................................................................................................... 5
1.1 Interfaces ..................................................................................................................................................................................................5
1.1.1 USB - HID ................................................................................................................................................................................................................5
1.1.2 RJ-10/4P4C ..........................................................................................................................................................................................................5
1.2 Supported Peripherals.............................................................................................................................................................................6
1.2.1 USB-HID Devices ................................................................................................................................................................................................6
1.3 Connector Pinouts ...................................................................................................................................................................................6
1.3.1 USB Type B Connector ......................................................................................................................................................................................6
1.3.2 USB Type A Connector......................................................................................................................................................................................6
1.3.3 Mini USB Type B Connector.............................................................................................................................................................................7
1.3.4 RJ-10/4P4C Connector .....................................................................................................................................................................................7
1.3.5 Power Supply Connector ..................................................................................................................................................................................7
1.4 Power Supply ............................................................................................................................................................................................7
1.5 Environmental Conditions .......................................................................................................................................................................8
1.6 Dimensions ...............................................................................................................................................................................................8
1.7 Shipping Weight........................................................................................................................................................................................8
1.8 MTBF .........................................................................................................................................................................................................8
2. DESCRIPTION................................................................................................................................................................................ 9
2.1 Application................................................................................................................................................................................................9
2.2 System Overview......................................................................................................................................................................................9
2.3 Product Range........................................................................................................................................................................................10
2.4 Device Views........................................................................................................................................................................................... 11
2.4.1 DKM Series, 4-Port TC KM Switch with (2) HID Ports (ACX1004A-HID2)............................................................................................11
2.4.2 DKM Series, 8-Port TC KM Switch with (2) HID Ports (ACX1008A-HID2) ...........................................................................................12
2.4.3 DKM Series, 4-Port TC KM Switch with (4) HID Ports (ACX1004A-HID4) ...........................................................................................13
2.4.4 DKM Series, 4-Port TC KM Switch with (2) HID Ports and (2) USB 2.0 Ports (ACX1004A-U23) ...................................................14
2.5 Status LEDs ............................................................................................................................................................................................15
3. INSTALLATION ............................................................................................................................................................................ 17
3.1 Package Contents ..................................................................................................................................................................................17
3.2 System Setup .........................................................................................................................................................................................17
3.3 Example Applications............................................................................................................................................................................18
4. CONFIGURATION ........................................................................................................................................................................ 20
4.1 Command Mode.....................................................................................................................................................................................20
4.2 Configuration of Multi-Screen Control.................................................................................................................................................21
4.3 External Display (optional) ....................................................................................................................................................................22
4.4 External Control (optional) ....................................................................................................................................................................22
4.5 Firmware Update ....................................................................................................................................................................................22

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TABLE OF CONTENTS
5. OPERATION.................................................................................................................................................................................. 23
5.1 Switching a Source.................................................................................................................................................................................23
5.1.1 Switching via Keyboard ...................................................................................................................................................................................23
5.1.2 Switching via Mouse (Panning) .....................................................................................................................................................................23
5.1.3 External Switching (optional) .........................................................................................................................................................................24
6. TROUBLESHOOTING................................................................................................................................................................... 25
6.1 USB-HID ...................................................................................................................................................................................................25
7. TECHNICAL SUPPORT................................................................................................................................................................ 26
7.1 Support Checklist ...................................................................................................................................................................................26
7.2 Shipping Checklist..................................................................................................................................................................................26
APPENDIX A. REGULATORY INFORMATION ................................................................................................................................ 27
A.1 FCC Statement .......................................................................................................................................................................................27
A.2 NOM Statement .....................................................................................................................................................................................28
A.3 CE Declaration Of Conformity ..............................................................................................................................................................29
A.4 WEEE.......................................................................................................................................................................................................29
A.5 RoHS/RoHS2..........................................................................................................................................................................................29
APPENDIX B. GLOSSARY ............................................................................................................................................................... 30
DISCLAIMER/TRADEMARKS......................................................................................................................................................... 31
Disclaimer .....................................................................................................................................................................................................31
Trademarks Used in this Manual.................................................................................................................................................................31

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SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
To ensure reliable and safe long-term operation of your DKM Series TC KM Switch please note the following guidelines:
Only use in dry, indoor environments.
Only use the device according to this User Manual. Failure to follow these procedures could cause damage to the equipment or
injury to the user or installer.
The DKM Series TC KM Switch and the power supply units can get warm. Do not install components in an enclosed space without
any airflow.
Do not place the power supply directly on top of the device.
Do not obscure ventilation holes.
Only use power supplies originally supplied with the product or manufacturer-approved replacements. Do not use a power supply if it
appears to be defective or has a damaged chassis.
Connect all power supplies to grounded outlets. In each case, 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.
CAUTION: To disconnect the device completely from the electric circuit, remove all power cables.
Do not attempt to open or repair a power supply unit.
Do not attempt to open or repair the DKM Series TC KM Switch. There are no user-serviceable parts inside.
Contact Black Box Technical Support at 877-877-2269 or [e-mail] if there is a fault.

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CHAPTER 1: SPECIFICATIONS
1.1 INTERFACES
1.1.1 U S B - H I D
Our devices with USB-HID interface support a maximum of two devices with USB-HID protocol. Each USB-HID port provides a maximum
current of 100 mA.
KEYBOARD
Compatible with most USB keyboards. Certain keyboards with additional functions may require custom firmware to operate.
Keyboards with an integral USB Hub (Mac keyboards e.g.) are also supported.
MOUSE
Compatible with most 2-button, 3-button and scroll mice.
OTHER USB-HID DEVICES
The proprietary USB emulation also supports certain other USB-HID devices, such as specific touch screens, graphic tablets,
barcode scanners or special keyboards. Support cannot be guaranteed, however, for every USB-HID device. Only two USB-HID
devices are supported concurrently, such as keyboard and mouse or keyboard and touch screen. A hub is allowed, but it does not
increase the number of HID devices allowed.
To support other USB “non-HID” devices, such as scanners, web cams or memory devices, choose our devices with transparent
USB support.
1.1.2 RJ-10/4P4C
This interface is used to establish a customer-specific communication with the TC KM Switch.
EXTERNAL STATUS LED
To control an external LED to indicate the status of a port:
Connect the anode of the LED to pin 1 and the cathode to pin 2. Use a suitable series resistor that you connect in series. The
interface supplies 3.3 V output voltage with 15 mA max.
EXTERNAL BUTTON
To control a port by an external button, use an NC (normally closed) contact as a switch. This contact has to short-circuit pin 3 and
pin 4 to operate.

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CHAPTER 1: SPECIFICATIONS
1.2 SUPPORTED PERIPHERALS
1.2.1 USB-HID DEVICES
Our The TC KM Switch will support most USB-HID devices, including the vast majority of keyboards and mice currently on the
market. Many other kinds of HID devices such as bar-code scanners and touch screens may also be compatible.
It is not possible to guarantee support for all available USB-HID devices. In certain cases, custom firmware may be required.
USB-HID (and other) devices that are not supported as standard will normally operate with our devices featuring transparent USB
support.
NOTE: Concurrent operation of more than two USB-HID devices is not possible even if you use a USB hub.
1.3 CONNECTOR PINOUTS
1.3.1 USB TYPE B CONNECTOR
TABLE 1-1. USB TYPE B CONNECTOR PINOUTS
PICTURE PIN SIGNAL COLOR
1 VCC (+5 VDC) Red
2 Data – White
3 Data + Green
4GND Black
1.3.2 USB TYPE A CONNECTOR
TABLE 1-2. USB TYPE A CONNECTOR PINOUTS
PICTURE PIN SIGNAL COLOR
1 VCC (+5 VDC) Red
2 Data – White
3 Data + Green
4GND Black

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CHAPTER 1: SPECIFICATIONS
1.3.3 MINI USB TYPE B CONNECTOR
TABLE 1-3. MINI USB TYPE B CONNECTOR PINOUTS
PICTURE PIN SIGNAL COLOR
1 VCC (+5 VDC) Red
2 Data – White
3 Data + Green
4 Not connected —
5GND Black
1.3.4 RJ-10/4P4C CONNECTOR
TABLE 1-4. RJ-10/4P4C CONNECTOR PINOUTS
PICTURE PIN SIGNAL
1 LED +
2 LED –
3Dry Contact
4GND
1.3.5 POWER SUPPLY CONNECTOR
TABLE 1-5. POWER SUPPLY CONNECTOR PINOUTS
PICTURE PIN SIGNAL
Inside VCC (+5 VDC)
Outside GND
1.4 POWER SUPPLY
TABLE 1-6. POWER SUPPLY SPECIFICATIONS
SPECIFICATION DESCRIPTION
Voltage 5 VDC
Power Requirement
ACX1004A-HID2: max. 500 mA;
ACX1008A-HID2: max. 700 mA;
ACX1004A-HID4: max. 700 mA

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CHAPTER 1: SPECIFICATIONS
1.5 ENVIRONMENTAL CONDITIONS
TABLE 1-7. ENVIRONMENTAL SPECIFICATIONS
SPECIFICATION DESCRIPTION
Operating Temperature 41 to 113° F (5 to 45° C)
Storage Temperature -13 to +140° F (-25 to +60° C)
Relative Humidity Max. 80% non-condensing
1.6 DIMENSIONS
TABLE 1-8. DIMENSIONS SPECIFICATIONS
SPECIFICATION DESCRIPTION
Switch Dimensions 1.7"H x 8.2"W x 5.6"D (4.2 x 20.9 x 14.3 cm)
Shipping Box Dimensions 5.1"H x 11.0"W x 7.1"D (13 x 28 x 18 cm)
1.7 SHIPPING WEIGHT
TABLE 1-9. SHIPPING WEIGHT SPECIFICATIONS
SPECIFICATION DESCRIPTION
Shipping Weight 1.3 lb. (0.6 kg)
1.8 MTBF
The following table contains the mean time between failure (MTBF) in power-on hours (POH). The estimate is based on the FIT
rates of the parts included. FIT rates are based on normalized environmental conditions of T = 60° C and activation energy (Ea) of
0.7 eV. Calculations are based on 90% confidence limit.
We estimate that inside the housing, temperature will be 15°C higher than the ambient temperature. Therefore, the MTBF
calculation refers to an ambient temperature of 45°C. The humidity is limited to 60%.
TABLE 1-10. MTBF SPECIFICATIONS
SWITCH PRODUCT CODE MTBF
ACX1004A-HID2 487,000 POH
ACX1008A-HID2 361,000 POH
ACX1004A-HID4 357,000 POH
ACX1004A-U23 468,000 POH

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CHAPTER 2: DESCRIPTION
2.1 APPLICATION
The DKM Series TC KM Switch is used to communicate between several sources (computer, CPU, KVM Extender CON Units) and several
monitors with one keyboard and mouse set only.
The DKM Series TC KM Switch is especially suitable for use with KVM switches and KVM extenders in the Black Box family.
2.2 SYSTEM OVERVIEW
The DKM Series TC KM Switch is connected to sources (computer, CPU, KVM extender CON Units) using the cables supplied.
Keyboard and mouse are connected to the device.
FIGURE 2-1. TYPICAL APPLICATION
TABLE 2-1. COMPONENTS IN A TYPICAL APPLICATION
NUMBER IN FIGURE 2-1 DESCRIPTION
1 Sources (computer, CPU, KVM Extender CON Units)
2 TC KM Switch
3Keyboard, mouse
NOTE: See Section 3.3 in this manual for installation examples.

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CHAPTER 2: DESCRIPTION
2.3 PRODUCT RANGE
TABLE 2-2. AVAILABLE SWITCH MODELS
PRODUCT CODE DESCRIPTION
ACX1004A-HID2 TC KM Switch 4 Port
ACX1008A-HID2 TC KM Switch 8 Port
ACX1004A-HID4 TC KM Switch for parallel switching of 2x4 ports
ACX1004A-U23 TC KM Switch with 4 ports USB-HID and 4 ports USB 2.0

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CHAPTER 2: DESCRIPTION
2.4 DEVICE VIEWS
2.4.1 ACX1004A-HID2
1 2 3 4 5 6 7 8 9 10 11 12
FIGURE 2-2. REAR VIEW OF THE ACX1004A-HID
TABLE 2-3. ACX1004A-HID2 COMPONENTS
NUMBER IN FIGURE 2-2 DESCRIPTION
1Connect to RJ-10/4P4C (Port 1)
2To CPU 1: USB-HID
3Connect to RJ-10/4P4C (Port 2)
4To CPU 2: USB-HID
5Connect to RJ-10/4P4C (Port 3)
6To CPU 3: USB-HID
7Connect to RJ-10/4P4C (Port 4)
8To CPU 4: USB-HID
9Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5-VDC power supply

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CHAPTER 2: DESCRIPTION
2.4.2 ACX1008A-HID2
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20
FIGURE 2-3. REAR VIEW OF THE ACX1008A-HID2
TABLE 2-4. ACX1008A-HID2 COMPONENTS
NUMBER IN FIGURE 2-3 DESCRIPTION
1Connect to RJ-10/4P4C (Port 1)
2To CPU 1: USB-HID
3Connect to RJ-10/4P4C (Port 2)
4To CPU 2: USB-HID
5Connect to RJ-10/4P4C (Port 3)
6To CPU 3: USB-HID
7Connect to RJ-10/4P4C (Port 4)
8To CPU 4: USB-HID
9Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5-VDC power supply
13 Connect to RJ-10/4P4C (Port 5)
14 To CPU 5: USB-HID
15 Connect to RJ-10/4P4C (Port 6)
16 To CPU 6: USB-HID
17 Connect to RJ-10/4P4C (Port 7)
18 To CPU 7: USB-HID
19 Connect to RJ-10/4P4C (Port 8)
20 To CPU 8: USB-HID

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CHAPTER 2: DESCRIPTION
2.4.3 ACX1004A-HID4
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22
FIGURE 2-4. REAR VIEW OF THE ACX1004A-HID4
TABLE 2-5. ACX1004A-HID4 COMPONENTS
NUMBER IN FIGURE 2-4 DESCRIPTION
1Connect to RJ-10/4P4C (Port 1)
2To CPU 1.1: USB-HID
3Connect to RJ-10/4P4C (Port 2)
4To CPU 2.1: USB-HID
5Connect to RJ-10/4P4C (Port 3)
6To CPU 3.1: USB-HID
7Connect to RJ-10/4P4C (Port 4)
8To CPU 4.1: USB-HID
9Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5-VDC power supply
13 Connect to RJ-10/4P4C (Port 5)
14 To CPU 1.2: USB-HID
15 Connect to RJ-10/4P4C (Port 6)
16 To CPU 2.2: USB-HID
17 Connect to RJ-10/4P4C (Port 7)
18 To CPU 3.2: USB-HID
19 Connect to RJ-10/4P4C (Port 8)
20 To CPU 4.2: USB-HID
21 Connect to USB-HID devices 3
22 Connect to USB-HID devices 4
NOTE: USB-B connectors 1.2–4.2 must be connected to additional USB-HID modules on the extender in order to allow parallel
switching with USB-B connectors 1.1–4.1.
:

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CHAPTER 2: DESCRIPTION
2.4.4 ACX1004A-U23
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22
FIGURE 2-5. REAR VIEW OF THE ACX1004A-U23
TABLE 2-6. ACX1004A-U23 COMPONENTS
NUMBER IN FIGURE 2-5 DESCRIPTION
1Connect to RJ-10/4P4C (Port 1)
2To CPU 1.1: USB-HID
3Connect to RJ-10/4P4C (Port 2)
4To CPU 2.1: USB-HID
5Connect to RJ-10/4P4C (Port 3)
6To CPU 3.1: USB-HID
7Connect to RJ-10/4P4C (Port 4)
8To CPU 4.1: USB-HID
9Connect to USB-HID devices 1
10 Connect to USB-HID devices 2
11 Service port
12 Connect to 5-VDC power supply
13 Connect to RJ-10/4P4C (Port 5)
14 To CPU 1.2: USB 2.0
15 Connect to RJ-10/4P4C (Port 6)
16 To CPU 2.2: USB 2.0
17 Connect to RJ-10/4P4C (Port 7)
18 To CPU 3.2: USB 2.0
19 Connect to RJ-10/4P4C (Port 8)
20 To CPU 4.2: USB 2.0
21 Connect to USB-HID devices 3
22 Connect to USB-HID devices 4
NOTE: USB-B connectors 1.2–4.2 must be connected to additional USB 2.0 embedded modules.
:

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CHAPTER 2: DESCRIPTION
2.5 STATUS LEDS
The TC KM Switch is fitted with a multi-color LED on both sides that indicates connection status.
1 2
FIGURE 2-6. LEDS ON THE FRONT PANEL OF THE SWITCH
TABLE 2-7. STATUS LEDS ON THE FRONT PANEL
NUMBER IN FIGURE 2-6 LED STATUS DESCRIPTION
1Status (green) Off Device not ready
On Device ready
2Power (red) Off Power supply not available
On Power supply available

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CHAPTER 2: DESCRIPTION
1 2 3 4 5
6 7 8 9
FIGURE 2-7. LEDS ON THE BACK PANEL OF THE SWITCH
TABLE 2-8. STATUS LEDS ON THE BACK PANEL
NUMBER IN FIGURE 2-7 LED STATUS DESCRIPTION
1USB Status CPU 1 (green) Off No connection to CPU 1
On Connection to CPU 1
2USB Status CPU 2 (green) Off No connection to CPU 2
On Connection to CPU 2
3USB Status CPU 3 (green) Off No connection to CPU 3
On Connection to CPU 3
4USB Status CPU 4 (green) Off No connection to CPU 4
On Connection to CPU 4
5Power (red) Off Device not ready
On Device ready
6USB Status CPU 5 (green) Off No connection to CPU 5
On Connection to CPU 5
7USB Status CPU 6 (green) Off No connection to CPU 6
On Connection to CPU 6
8USB Status CPU 7 (green) Off No connection to CPU 7
On Connection to CPU 7
9USB Status CPU 8 (green) Off No connection to CPU 8
On Connection to CPU 8

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CHAPTER 3: INSTALLATION
3.1 PACKAGE CONTENTS
Your extender package contains the following items:
DKM Series TC KM Switch
External power supply
Power cord
CD-ROM with user manual
(4) USB cables (1.8-m, Type A to Type B)
Additional items included in package for ACX1008A-HID2/ACX1004A-HID4/ACX1004A-U23:
(4) USB cables (1.8-m, Type A to Type B)
If anything is missing or damaged, contact Black Box Technical Support at 877-877-2269 or [e-mail].
3.2 SYSTEM SETUP
NOTE: For first-time users, we recommend that you set up the system with the CPU Unit and the CON Unit in the same room as a test
setup. This will allow you to identify and solve any cabling problems, and experiment with your system more conveniently.
SETUP STEPS:
1. Switch off all devices.
2. Connect the USB cables to the CPUs (CON units) and to the TC KM Switch.
3. Connect mouse and keyboard to the TC KM Switch.
4. Connect the 5-VDC power supply to the TC KM Switch.
5. Power up the system.
When powering up the TC KM Switch, a boot process will be enabled. The duration depends upon the size of the TC KM Switch (4
port version: 30 seconds, 8 port version: 50 seconds).
The boot process must complete before you can use the TC KM Switch and keyboard and mouse will be enabled.

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CHAPTER 3: INSTALLATION
3.3 EXAMPLE APPLICATIONS
This section illustrates typical installations of the TC KM Switch .
1 2 3 4
FIGURE 3-1. DIRECT CPU CONNECTION
TABLE 3-1. TC KM SWITCH (DIRECT CPU CONNECTION)
NUMBER IN FIGURE 3-1 DESCRIPTION
1 Source (computer, CPU)
2Switch button
3 TC KM Switch
4Keyboard, mouse

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CHAPTER 3: INSTALLATION
1 2 3 4 5
FIGURE 3-2. USING THE TC KM SWITCH WITH A BLACK BOX KVM SWITCH
TABLE 3-2. TC KM SWITCH (IN COMBINATION WITH BLACK BOX KVM SWITCH)
NUMBER IN FIGURE 3-2 DESCRIPTION
1 Black Box KVM Switch
2 CON Units
3Monitor LEDs
4 TC KM Switch
5Keyboard, mouse

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CHAPTER 4: CONFIGURATION
4.1 COMMAND MODE
The TC KM Switch has a Command Mode that allows several functions via keyboard command during normal use.
To enter Command Mode, use a hotkey sequence and to exit Command Mode, press <Esc>. While in Command Mode, the LEDs Shift and
Scroll on the console keyboard will flash. In Command Mode, normal keyboard and mouse operation will cease. Only selected keyboard
commands are available.
If no keyboard command is executed within 10 seconds after activating Command Mode, it will be automatically deactivated.
The following table lists the keyboard commands to enter and to exit Command Mode and to change the hotkey sequence.
TABLE 4-1. KEYBOARD COMMANDS
FUNCTION KEYBOARD COMMAND
Enter Command Mode (default) 2x <Right Shift> (or hotkey)
Exit Command Mode <Esc>
Change hotkey sequence <current hotkey>, <c>, <new hotkey code>, <Enter>
Until 2011-30-09: <Left Ctrl> + <Left Shift> + <c>, <Hotkey Code>, <Enter>
<Key> + <Key> Press keys simultaneously
<Key>, <Key> Press keys successively
2x <Key> Press key quickly, twice in a row (similar to a mouse double-click)
The hotkey sequence to enter Command Mode can be changed. The following table lists the Hotkey Codes for the available key
sequences.
TABLE 4-2. HOTKEY CODES
HOTKEY CODE HOTKEY
0 Freely selectable (2012-01-12)
2 2x <Scroll>
3 2x <Left Shift>
4 2x <Left Ctrl>
5 2x <Left Alt>
62x <Right Shift>
7 2x <Right Ctrl>
8 2x <Right Alt>
NOTE: In a KVM switch configuration, choose different hotkeys for the KVM Extender and the Black Box TC KM Switch.
Set freely selectable Hotkey (exemplary)
To set a freely selectable hotkey (e.g. 2x <Space>), use the following keyboard sequence: <current hotkey>, <c>, <0>, <Space>, <Enter>
Reset Hotkey
To set a hotkey back to the default settings of the extender, press the key combination <Right Shift> + <Del> within 5 seconds after
switching on the CON unit or plugging in a keyboard.