®
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CONTENTS
1
2
3
4
5
6
7
8
8
9
10
Introduction
Operation Notes
Features
Front Panel Layout
Front Panel Descriptions
Back Panel Layout
Back Panel Descriptions
IR Remote Control Unit
Layout and Description
Installing the Battery
Configuring the IR Remote Control Unit
11 Connecting the 4x1 DisplayPort Switcher
11 Wiring Diagram
12 Operating the 4x1 DisplayPort Switcher
12
12
12
13
13
Front Panel Buttons and LED Indicators
Switching sources using the front panel buttons
Switching sources using the IR Remote Control Unit
Switching sources using RS-232
Switching sources using Telnet
14 RS-232 Control
15 RS-232 Commands
15
20
23
IP Configuration
General Commands
Routing and Extender Commands
24 Telnet Control
26 Specifications
27 Warranty
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INTRODUCTION
Congratulations on your purchase of the 4x1 DisplayPort Switcher. Your complete
satisfaction is very important to us.
Gefen
Gefen delivers innovative and progressive computer and electronics
add-on solutions that harness integration, extension, distribution, and conversion
technologies. Gefen’s reliable plug-and-play products supplement cross-platform
computer systems, professional audio/video environments, and HDTV systems
of all sizes with hard-working solutions that are easy to install and simple to
operate.
The Gefen 4x1 DisplayPort Switcher
Easily switch between four computers using DisplayPort with the 4x1 DisplayPort
Switcher.
The rack-mountable 4x1 DisplayPort Switcher offers an economical solution for
switching between four different computers to one display location at the touch of
a button.
Eliminating the need to purchase many displays in a studio or professional en-
vironment, this versatile solution saves money, supports both Mac and PC-type
computers, and offers uncluttered and increased desktop space.
This Switcher can be controlled using front panel discrete switching, the included
IR Remote control, IP control, or the RS-232 port for switching automation.
The 4x1 DisplayPort Switcher is compatible with all operating systems using
DisplayPort.
How It Works
Connect the four included 6-foot DisplayPort cables between the computers and
the Switcher inputs. Connect the Switcher output to the monitor using a Display-
Port cable. Connect the included 5V DC locking power supply to the 4x1 Switcher
and connect the AC power cord to an available electrical outlet. The currently
selected source will be displayed.
1
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OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE 4X1 DISPLAYPORT SWITCHER
•
The 4x1 DisplayPort Switcher supports Pass-through EDID. The Switcher
will use the EDID from the currently connected monitor.
•
•
•
•
Dual Link resolutions up to 2560 x 1600 are supported.
HDCP content is not supported.
This Switcher does not support DHCP.
The default IR channel for both the Switcher and the IR Remote Control Unit
is channel 0. See page 10 for more information.
2
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FEATURES
Features
•
Switches a single Hi-Def display between four DisplayPort-equipped
sources.
•
•
•
•
•
•
•
•
•
Supports HD resolutions up to 1080p Full HD
Supports VESA resolutions up to 2560 x 1600
Supports RGB and YCbCr color spaces
RS-232 control
Ethernet / Telenet Control
IR remote control
Jack for external IR Receiver
Saves space on your desktop
Rack-mountable
Package Includes
(1) 4x1 DisplayPort Switcher
(4) 6ft. DisplayPort Cables
(1) IR Remote Control Unit
(1) 5V DC Locking Power Supply
(1) Set of Rack Ears
(1) User Manual
3
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FRONT PANEL LAYOUT
4
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FRONT PANEL DESCRIPTIONS
1
Input Indicators (1 - 4)
Each of these LED indicators glows bright blue according to the input selection
(see Input Buttons, below)
2
3
IR
Receives IR signals from the included IR Remote Control Unit.
Input Buttons (1 - 4)
Pressing each of these buttons selects the desired input source (1-4).
4
Power
This LED indicator will glow bright red when the unit is powered.
5
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BACK PANEL LAYOUT
6
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BACK PANEL DESCRIPTIONS
1
2
3
5V DC
Connect the included 5V DC locking power supply to this receptacle.
DP In 1 - DP In 4
Each of these ports will accept a standard DisplayPort source device.
DP Out
This port will accept a single standard DisplayPort output device. The currently
selected DisplayPort input source will be output via this port.
4
5
Ext IR
Connect an IR extender cable to this port.
RS-232 Serial Port
This port is used for serial communication using an RS-232 control device. For
details, refer to page 14.
6
Ethernet
Connect the Switcher to a network in order to communicate via Telnet.
7
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IR REMOTE CONTROL UNIT
Layout and Description
1
2
1
2
Activity Indicator
This LED will be activated momentarily each time a button is pressed.
Source Selection Buttons (1 - 4)
These buttons are used to select which source is routed to a monitor.
NOTE: An Activity Indictor that flashes quickly while holding down
any one of the four buttons indicates a low battery. Replace the
IR Remote Control battery as soon as possible.
8
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IR REMOTE CONTROL UNIT
Installing the RMT-4IR Battery
1. Remove the battery cover on the back of the IR Remote Control Unit.
2. Insert the included battery into the open battery slot. The positive (+) side of
the battery should be facing up.
3. Replace the battery cover.
The Remote Control unit ships with two batteries. One battery is required for
operation and the other battery is a spare.
Battery Slot
WARNING: Risk of explosion if battery is replaced by an
incorrect type. Dispose of used batteries according to the
instructions.
9
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IR REMOTE CONTROL UNIT
How to Resolve IR Code Conflicts
In the event that IR commands from other remote controls interfere with the
supplied IR Remote Control unit, changing the IR Remote Control’s IR channel
will fix the problem. The IR Remote Control unit has a bank of DIP switches used
for setting the IR channel. The DIP switch bank is located underneath the battery
cover.
Left: Picture of the
opened rear battery
compartment of the IR
remote showing the
exposed DIP Switch
bank between the
battery chambers.
Corresponding DIP Switch Settings for each IR Channel
IR Channel 0
(default)
IR Channel 1
IR Channel 2
IR Channel 3
ON
ON
ON
ON
1
2
1
2
1
2
1
2
It is important that the IR channel on the Remote Control unit, matches the IR
channel set on the 4x1 DisplayPort Switcher. For example, if both DIP switches
on the IR Remote Control unit are set to IR channel 0 (both DIP switches down),
then the 4x1 DisplayPort Switcher must also be set to IR channel 0. See page
21 on how to change the IR channel on the 4x1 DisplayPort Switcher.
10
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CONNECTING THE 4X1 DISPLAYPORT SWITCHER
How to Connect the 4x1 DisplayPort Switcher
1
2
Connect up to four (4) DisplayPort source devices to the DisplayPort inputs
on the back panel of the Switcher using DisplayPort cables.
Connect a DisplayPort-supported display to the DisplayPort output on the
back panel of the Switcher.
a
OPTIONAL: To use the RS-232 communication feature, connect an
RS-232 cable between the Switcher and RS-232 host controller.
b
OPTIONAL: To communicate with the Switcher using Telnet, connect an
Ethernet cable from the Ethernet jack on the back of the Switcher to the
network. See page 24 for more information on using the Telnet feature.
c
OPTIONAL: To extend the range of the IR control, connect an IR
Extender (Gefen part no. EXT-RMT-EXTIR) to the back of the Switcher.
3
4
Connect the included 5V locking power supply to the power receptacle on
the 4x1 DisplayPort Switcher
Connect the opposite end of the power supply to an open wall socket power
source.
Wiring Diagram for the 4x1 DisplayPort Switcher
DISPLAYPORT CABLE
RS-232 CABLE
Computer
ETHERNET
Computer
IR
Computer
IR Extender
Computer
Router
DisplayPort Switcher
DisplayPort Display
RS-232 Controller
EXT-DP-441
ATTENTION: This product should always be connected to a
grounded electrical socket.
11
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OPERATING THE 4X1 DISPLAYPORT SWITCHER
Front Panel Buttons and LED Indicators
The front panel of the 4x1 DisplayPort Switcher has a set of four (4) LED
indicators, displaying which input (source) is being displayed. Each of these LED
indicators corresponds to one of the push-buttons on the front panel.
Switching sources using the front panel buttons
Example: Switch to input 3 using the front panel buttons:
1
2
Press button 3 on the front panel of the 4x1 DisplayPort Switcher.
The LED indicator for input 3 will glow bright blue on the front panel.
2
1
Switching sources using the IR Remote Control
Example: Switch to Input 1 using the IR Remote Control:
1
Press button 1 on the IR Remote Control Unit. The Activity Indicator on
the IR Remote Control Unit will glow yellow, indicating that a button was
pressed.
2
The LED indicator for input 1 will glow bright blue.
2
1
12
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OPERATING THE 4X1 DISPLAYPORT SWITCHER
Switching sources using RS-232
Configure the Switch for use with RS-232 (see page 14 for details).
Example: Switch to input 4 using RS-232
1
Use the command r 4to route the Switcher to Input 4. See page 14 - 15
for important information on RS-232 commands. RS-232 commands are
case-sensitive.
2
The LED indicator for Input 4 will glow bright blue on the front panel.
1
2
terminal ready...
r 4
Route to Input 4
Switching sources using Telnet
Configure the Switch for use with Telnet. See page 24 for details.
Example: Switch to Input 2 using the Telnet protocol
1
2
Use the command r 2to route the Switcher to Input 2.
The LED indicator for Input 2 will glow bright blue.
1
2
Type Cmd: r 2
Route to Input 2
13
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RS-232 CONTROL
Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are used for communication.
A null-modem adapter should not be used with this product.
5 4 3 2 1
1 2 3 4 5
9 8 7 6
6 7 8 9
Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface
Serial Port Settings
Bits per second ............................................................................................ 19200
Data bits ............................................................................................................... 8
Parity ............................................................................................................. None
Stop bits ................................................................................................................1
Flow Control .................................................................................................. None
NOTE: Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are
used for communication. A null-modem adapter should not be
used with this product.
14
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RS-232 COMMANDS
Command Syntax
All RS-232 commands are case-sensitive and must be entered in lowercase.
Each command must be preceded by the ‘#’ character. A carriage return must
also be appended to every command.
Example:
#set_http_port 80[CR]
IP Configuration
Command
Description
#get_pass
Prompts for the Telnet password
Prompts for the Telnet username
Displays all TCP/IP settings
Sets IP configuration to default settings
Sets the Web server listening port
Sets the Telnet password
#get_user_name
#ipconfig
#rstip
#set_http_port
#set_pass
#set_telnet_port
#set_user_name
#sgateway
Sets the Telnet listening port
Sets the Telnet user name
Specifies the new gateway
Specifies a new IP address
Specifies a new net mask
#sipadd
#snetmask
#use_telnet_pass
Toggles Telnet password prompt
#GET_PASS Command
The #GET_PASS command prompts for the Telnet password.
Syntax:
#get_pass
Parameters:
None
15
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RS-232 COMMANDS
#GET_USER_NAME Command
The #GET_USER_NAME command prompts for the Telnet username.
Syntax:
#get_user_name
Parameters:
None
#IPCONFIG Command
The #IPCONFIG command displays all TCP/IP settings.
Syntax:
#ipconfig
Parameters:
None
#RSTIP Command
The #RSTIP command resets the IP configuration to the default settings.
Syntax:
#rstip
Parameters:
None
16
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RS-232 COMMANDS
#SET_HTTP_PORT Command
The #SET_HTTP_PORT command sets the Web server listening port.
Syntax:
#set_http_port param1
Parameters:
param1
Port
[0 - 255]
#SET_PASS Command
The #SET_PASS command sets Telnet password.
Syntax:
#set_pass param1
Parameters:
param1
String
Notes:
The maximum length of the password string is 20 characters.
#SET_TELNET_PORT Command
The #SET_TELNET_PORT command sets the Telnet server listening port.
Syntax:
#set_telnet_port param1
Parameters:
param1
Port
[0 - 255]
17
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RS-232 COMMANDS
#SET_USER_NAME Command
The #SET_USER_NAME command sets the Telnet user name.
Syntax:
#set_user_name param1
Parameters:
param1
String
Notes:
The maximum length of the username string is 20 characters.
#SGATEWAY Command
Specifies the new IP gateway. Dot-decimal notation must be used when specify-
ing the IP address. A reboot is required after the new IP gateway address has
been assigned.
Syntax:
#sgateway param1.param2.param3.param4
Parameters:
param1
param2
param3
param4
Gateway address
Gateway address
Gateway address
Gateway address
[0 - 255]
[0 - 255]
[0 - 255]
[0 - 255]
Example:
#sgateway 192.168.1.1
18
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RS-232 COMMANDS
#SIPADD Command
The #SIPADD command specifies a new IP address. Dot-decimal notation must
be used when specifying the IP address. A reboot is required after the new IP
address is set.
Syntax:
#sipadd param1.param2.param3.param4
Parameters:
param1
param2
param3
param4
IP address
IP address
IP address
IP address
[0 - 255]
[0 - 255]
[0 - 255]
[0 - 255]
Example:
#sipadd 192.168.2.240
#SNETMASK Command
The #SNETMASK command specifies a new net mask. Dot-decimal notation
must be used when specifying the IP address. A reboot is required after the new
IP address is set.
Syntax:
#snetmask param1.param2.param3.param4
Parameters:
param1
param2
param3
param4
IP address
IP address
IP address
IP address
[0 - 255]
[0 - 255]
[0 - 255]
[0 - 255]
Example:
#snetmask 255.255.255.0
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RS-232 COMMANDS
#USE_TELNET_PASS Command
The #USE_TELNET_PASS command enables / disabled the use of a Telnet
password during the login process.
Syntax:
#use_telnet_pass param1
Parameters:
param1
State
[0 - 1]
Meaning
Value
0
1
Disable password
Enable password
General Commands
Command
#activebolo
#fadefault
#irrmtadd
Description
Activates the bootloader
Resets the Switcher to the default routing state
Sets the IR address for the Switcher
Toggles the lock power state
#lockpower
#stbymode
Toggles Standby (power OFF) Mode
#ACTIVEBOLO Command
The #ACTIVEBOLO function activates the bootloader. This command is required
to be executed in order begin the firmware update procedure.
Syntax:
#activebolo
Parameters:
None
Notes:
This command must be executed twice, in order to active the bootloader.
20
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RS-232 COMMANDS
#FADEFAULT Function
The #FADEFAULT function will reset the Switcher to the default routing settings.
Syntax:
#fadefault
Parameters:
None
#IRRMTADD Command
The #IRRMTADD sets the IR channel. The IR channel for the Switcher and the
IR Remote Control Unit must be the same.
Syntax:
#irrmtadd param1
Parameters:
param1
State
[0 - 3]
Meaning
Value
0
1
2
3
IR channel 0
IR channel 1
IR channel 2
IR channel 3
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RS-232 COMMANDS
#LOCKPOWER Command
The #LOCKPOWER enables/disables the power lock state. Enabling this
feature will store the 5V status for each input prior to shutting the unit down.
This preserves the 5V state when the unit is restarted.
Syntax:
#lockpower param1
Parameters:
param1
State
[0 - 1]
Meaning
Value
0
1
Disable Power Lock
Enable Power Lock
#STBYMODE Command
The #STBYMODE command toggles the Standby Mode state. When the
Switcher is powered OFF (not unplugged), then the unit is in Standby Mode.
Executing this command from Standby Mode will power ON the Switcher.
Syntax:
#stbymode param1
Parameters:
param1
Mode
[0 - 1]
Meaning
Value
0
1
Normal Mode
Standby Mode
22
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RS-232 COMMANDS
Routing and Extender Commands
The following commands do not require the ‘#’ character. A carriage return must
be added to the end of each command.
Command
Description
R
Routing command
R Command
The R command switches to the specified input.
Syntax:
r param1
Parameters:
param1
DisplayPort Input
[1 - 4]
23
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TELNET CONTROL
The Gefen 4x1 DisplayPort Switcher supports Telnet for controlling the Switcher
over a network. To access this feature, an IP address, subnet, gateway, and port
numbers need to be set correctly. Consult the network administrator to obtain the
proper IP address and settings for this product to properly communicate with the
Switcher over a network.
The Telnet control must be configured using RS-232 commands. Once properly
configured, enter the IP address that was assigned to the Switcher using a
terminal program or other Telnet client.
1. Connect the Switcher to a computer using RS-232.
2. Use a terminal emulation program (e.g. HyperTerminal, PuTTY, Indigo,
etc.) to connect to the Switcher. See page 14 for information on RS-232
configuration.
IMPORTANT: When using HyperTerminal under Windows XP,
the LF (line feed) character option must be enabled.
3. Apply power to the Switcher. Information similar to the following will be
displayed in the terminal window:
===================================================
GEFEN
DISPLAY PORT 441
FW version: 1.3
===================================================
4. Use the #ipconfigcommand to display the current IP settings. The factory
(default) settings are displayed below:
#ipconfig
------------------- TCP/IP settings ---------------
MAC addr
IP addr
Net Mask
Gateway
Web Server Port
Telnet Server Port
= 00:1C:91:02:40:00
= 192.168.0.70
= 255.255.255.0
= 192.168.0.1
= 80
= 23
Telnet password on login is set to ON
Note that the Telnet password is set to ON. A user name and password can
be set for additional security. This option can also be disabled. See page 20
for details.
24
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TELNET CONTROL
5. Use the #sipaddcommand to set the IP address for the Control System.
Check with a network administrator to obtain an available address, if
necessary. DHCP is not supported by this Switcher.
#sipadd 192.168.2.234
New IP set to: 192.168.2.234
After setting the IP address, power-cycle the Switcher for the changes to
take effect.
IMPORTANT: All IP configuration changes will require the
Switcher to be power-cycled.
6
Specify the IP of the Control System in the Telnet client. In this example, the
IP address is set to 192.168.2.234. Once connected to the Control System,
the Telnet client will display a screen similar to the following:
----------- Welcome to DP441 Telnet Server ----------
You are user number 1 of 3 allowed.
You will be disconnected after 10 minutes of inactivity.
Login: Admin
Password: Admin
Type Cmd:
By default, the user name and password options are enabled by use of
the #use_telnet_passcommand (see page 20). Once this command
is enabled, the Switcher will prompt for both the user name and password.
The password cannot be disabled from the login process. Once logged in,
the Type Cmdprompt will be displayed.
The Telnet interface uses the same commands and syntax that are used with
RS-232 control. See the command list, starting on page 15.
25
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SPECIFICATIONS
Maximum Pixel Clock................................................................................360 MHz
Input Connector...................................................................(4) DisplayPort, female
Output Connector................................................................(1) DisplayPort, female
RS-232 Connector.........................................................................(1) DB-9, female
Ethernet Connector................................................................... (1) RJ-45, shielded
IR Extender Connector........................................................ (1) 3.5 mm mini-stereo
Power Supply .............................................................................................. 5V DC
Power Consumption ............................................................................ 10W (max.)
Dimensions.................................................................. 17.1” W x 1.75” H x 4.25” D
Shipping Weight ............................................................................................ 4 lbs.
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WARRANTY
Gefen warrants the equipment it manufactures to be free from defects in material
and workmanship.
If equipment fails because of such defects and Gefen is notified within two (2)
years from the date of shipment, Gefen will, at its option, repair or replace the
equipment, provided that the equipment has not been subjected to mechanical,
electrical, or other abuse or modifications. Equipment that fails under conditions
other than those covered will be repaired at the current price of parts and labor in
effect at the time of repair. Such repairs are warranted for ninety (90) days from
the day of reshipment to the Buyer.
This warranty is in lieu of all other warranties expressed or implied, including
without limitation, any implied warranty or merchantability or fitness for any
particular purpose, all of which are expressly disclaimed.
1. Proof of sale may be required in order to claim warranty.
2. Customers outside the US are responsible for shipping charges to and from
Gefen.
3. Copper cables are limited to a 30 day warranty and cables must be in their
original condition.
The information in this manual has been carefully checked and is believed to
be accurate. However, Gefen assumes no responsibility for any inaccuracies
that may be contained in this manual. In no event will Gefen be liable for
direct, indirect, special, incidental, or consequential damages resulting from
any defect or omission in this manual, even if advised of the possibility of such
damages. The technical information contained herein regarding the features and
specifications is subject to change without notice.
For the latest warranty coverage information, refer to the Warranty and Return
PRODUCT REGISTRATION
Please register your product online by visiting the Register Product page
under the Support section of the Gefen Web site.
27
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Rev A3
Pb
This product uses UL listed power supplies.
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