Gefen RMT-MATRIX-444 User manual

4x4 DVI KVM
Matrix
USER MANUAL

INTRODUCTION
Thank you for purchasing the 4x4 DVI DL KVM Matrix.
Now you can easily switch four cross-platform DVI Dual Link computers to four DVI Dual
Link displays. Our 4x4 Dual Link DVI KVM Matrix provides a simple, reliable and highly
effective method of creating multiple computer workstations, with each workstation ca-
pable of accessing any one of the computers or sources at any time by remote control.
You also have the option of setting up the four stations locally or extending them with a
Gefen extender. When used with computers, USB 1.1 and Audio matrix control signals
follow the DVI Dual Link input for optimal control.
How It Works
The 4x4 DVI Dual Link KVM Matrix has four Dual Link DVI inputs and four Dual Link DVI
outputs.Yousimply connectyour fourcomputers' DVIDual Linkvideo portsto theSwitcher's
inputs, then connect your four DVI Dual Link displays to the Switcher's outputs. USB 1.1
keyboard and mouse signals and analog audio, once connected, follow the DVI Dual Link
switched input for each computer.
1
OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING
OR OPERATING THE 4X4 DVI DL KVM MATRIX
• The 4x4 DVI DL KVM Matrix is housed in a metal box for better RF shielding.
• The 4x4 DVI DL KVM Matrix works with all DVI and HDMI displays.
• The 4x4 DVI DL KVM Matrix is not HDCP compliant.

2
FEATURES
Features
• Increases your productivity by providing you with access to four computers from four
Dual Link workstations
• Maintains highest resolution digital video with no loss of quality
• Supports either PC or Mac USB keyboards/mice
• USB 1.1 Matrix Switching capabilities
• Supports analog audio matrixing
• Discrete IR remote (included)
• Supports single and dual link resolutions up to 3840x2400
• Supports DDWG standards for DVI monitors
• Includes rack ears
Includes:
(1) 4x4 DVI DL KVM Matrix
(1) RMT-16IR
(1) 5V Power Supply
(4) 6ft DVI cables
(4) 6ft USB cables
(4) 6ft Audio cables
(1) Set of Rack Ears

PANEL LAYOUT
3
Front Panel
RS232 Controller Port
Display 2
Indicator
Display 1
Indicator Display 3
Indicator Display 4
Indicator
IR Sensor
IR Extender Eye Port Power Indicator
Back Panel
Connects to 5VDC
Power Supply
DVI Inputs DVI Outputs
USB/Audio
Outputs
USB/Audio
Inputs CAT-5 Outputs

1. Connect all the sources to the DVI, USB, and audio inputs on the 4x4 DVI DL KVM
Matrix, using the supplied cables.
2. Connect the HDMI/DVI display, USB, and audio to the outputs on the 4x4 DVI DL
KVM Matrix.
3. Connect the 5VDC power supply to the 4x4 DVI DL KVM Matrix.
4. Controlling the 4x4 DVI DL KVM Matrix using the RMT16-IR:
Pressing Buttons... Switches...
1-4 Display 1 to view Source 1, 2, 3, or 4
5-8 Display 2 to view Source 1, 2, 3, or 4
9-12 Display 3 to view Source 1, 2, 3, or 4
13-16 Display 4 to view Source 1, 2, 3, or 4
*Note for computers connected to the DVIKVM Matrix - When your computer boots
up, it looks for an EDID (extended display identification data) from the display to tell it
what monitor is connected and what resolution to output. During boot up of the comput-
er you should have ONLY one output selected to one input at a time so that the comput-
er gets the EDID of the display that is selected. If you have multiple outputs selected to
one computer, the computer will read the EDID of the last output selected to it. If all your
displays are the same, or all displays are
capable of running at the same resolution then this step does not matter.
You can also use a DVI Detective to eliminate the need to have that matrix selected to
the computer during bootup.
USING THE 4x4 DVI DL KVM MATRIX
4

5
RMT16-IR INSTALLATION
The RMT-16-IR remote control will allow the user to select which source each of the
4 connected displays will be viewing. Each of the 4 displays are assigned a group of
4 buttons that correspond to the 4 source inputs. Please use the information below
when selecting the desired source for each display.
RMT-16-IR Button Display Source
111
212
313
414
521
622
723
824
931
10 3 2
11 3 3
12 3 4
13 4 1
14 4 2
15 4 3
16 4 4
LED Indicator

6
4X4 DVI DL KVM MATRIX CONFIGURATION
Remote Channel 1:
Default
1 2
Remote Channel 2:
1 2
Remote Channel 3:
1 2
Remote Channel 4:
1 2
Remote Channel 1:
Default
1 2
Remote Channel 2:
1 2
Remote Channel 3:
1 2
Remote Channel 4:
1 2
RMT-16-IR REMOTE CONTROL 4x4 DVI DL KVM Matrix
12345678
OFF
ON
The 4x4 DVI DL KVM Matrix has a bank of 8 configuration DIP SWITCHES. These
switches are located underneath the unit. Peeling back the black metallic sticker on
the bottom of the 4x4 DVI DL KVM Matrix will reveal the Dip Switch bank. These
service switches are used for a number of configuration options. By default, all Dip
Switches are in the OFF position. Each setting is outlined below.
Switch 1 IR Remote Channel Configuration
Switch 2 IR Remote Channel Configuration
Switch 3 Automatic Link Selection \ Dual Link Only Mode
Switch 4 Not Used
Switch 5 Pre-Empahsis For Display Output 1
Switch 6 Pre-Empahsis For Display Output 2
Switch 7 Pre-Empahsis For Display Output 3
Switch 8 Pre-Empahsis For Display Output 4
IR REMOTE CHANNEL CONFIGURATION
Dip Switches 1 and 2 relate to the IR remote control channel that is used by the 4x4 DVI
DL KVM Matrix and RMT-16-IR remote control. Dip Switch 1 and 2 on the 4x4 DVI DL
KVM Matrix must match Dip Switch 1 and 2 on the RMT-16-IR remote control. Please
view the table below to set the channel on 4x4 DVI DL KVM Matrix and IR remote
control. The remote channel for the RMT-16-IR is located underneath it’s battery
cover.

7
4X4 DVI DL KVM MATRIX CONFIGURATION
AUTOMATIC LINK SELECTION / DUAL LINK ONLY MODE
The 4x4 DVI DL Matrix has the ability to run both Single Link and Dual Link DVI sources.
There is a feature that will either automatically select the link mode, or lock the unit in Dual
Link mode. By default, Dip Switch 3 is in the OFF position (Automatic Link Selection).
Turning Dip Switch 3 to the ON position will lock the unit in Dual Link mode and will only
allow Dual Link signals to pass properly.
PRE-EMPHASIS
Pre-Emphasis is used to help extend a signal travel over a distance of cable. When a DVI
cable connected to a display is over a long cable, it is recommended that Pre-Emphasis
be enabled. Pre-emphasis is enabled by default on all display outputs. For short
cables, disable pre-emphasis on each output by turing it’s corresponding Dip Switch to
the ON position. If any type of extension device, such as a DVI CAT5 Extreme, is used
pre-emphasis must be disabled for proper operation.

8
RMT-MATRIX-444 INSTALLATION (OPTIONAL)
You can use up to 4 RMT-MATRIX-444 units to extend switching functionality to remote
locations. Each unit will allow the user to switch their one display between the 4 inputs
on the DVIKVM-444N. Follow these steps for each RMT-MATRIX-444 that will be used
in your setup.
1. Connect a CAT5/6 cable between the RMT-MATRIX-444 and one of the CAT5 ports
on the rear of the DVIKVM-444N. The ports are labeled as RMTA, B, C, and D and
correspond with DVI out ports 1, 2, 3, and 4.
2. Use the contact buttons on the RMT-MATRIX-444 to switch between the different
inputs connected to the DVIKVM-444N. Optionally, you can use a RMT-4IR (infrared
remote) in conjunction with the RMT-MATRIX-444 to switch inputs from a distance.
IR Sensor
(For use with optional IR
remote)
IR Sensor Extension Port
(Extension cable not
included)
RS-232 Port
CAT5/6 Port
Input Selection LED
Input Selection Buttons

RS-232 INTERFACE
9
Binary Table
ASCII Corresponding
RMT16-IR
Button
Binary ASCII Corresponding
RMT16-IR
Button
Binary
1 1 0011 0001 9 9 0011 1001
2 2 0011 0010 a 10 0110 0001
3 3 0011 0011 b 11 0110 0010
4 4 0011 0100 c 12 0110 0011
5 5 0011 0101 d 13 0110 0100
6 6 0011 0110 e 14 0110 0101
7 7 0011 0111 f 15 0110 0110
8 8 0011 1000 g 16 0110 0111
RS232 Settings
Bits per second ....................................................................................................... 19200
Data bits .......................................................................................................................... 8
Parity ........................................................................................................................ None
Stop bits ...........................................................................................................................1
Flow Control ............................................................................................................. None