Page 1
®
Page 2
ASKING FOR ASSISTANC
E
Rev A
7
T
echnical Suppor
t
Telephone (818) 772-910
0
(800) 545-690
0
Fax
(
818) 772-912
0
T
echnical Support Hours
:
:00 AM to 5:00 PM Monday thru Friday.
Write To
:
efen LL
C
o Customer Servic
e
2
0600
Nordhoff St
hatsworth, CA 9131
1
www.gefen.com
s
upport@gefen.com
Notic
e
efen LLC reserves the right to make changes in the hard ware, packaging and
any accompanying doc u men ta tion without prior written notice.
4
x1 DVI Switcher is a trademark of Gefen LL
C
©
2011 Gefen LLC, All Rights Reserve
d
All trademarks are the property of their respective owners
Page 3
CONTENT
S
1 Intr
oduction
2
O
peration Notes
Features
4 Front Panel La
yout
Front Panel Descriptions
Back Panel Layou
t
7 Back Panel Descriptions
IR Remote Control Uni
t
Layout and Descriptio
n
Installing the Batter
y
10
S
etting the IR channel on the Remot
e
11 Setting the IR channel on the 4x1 DVI Switcher
12 Connecting the 4x1 DVI Switcher
12 Wiring Diagram
13 Operating the 4x1 DVI Switcher
13 Front Panel Buttons and LED Indicators
13
S
witching sources using the front-panel buttons
14
S
witching sources using the IR Remote Control Uni
t
15
S
witching sources using RS-23
2
16 RS-232 Control
17 Specifi cations
18 Warrant
y
Page 4
INTRODUCTIO
N
ongratulations on your purchase of the Gefen 4x1 DVI Switcher. Your complete
s
atisfaction is very important to us.
efen
efen delivers innovative, progressive computer and electronics add-on solutions
that harness integration, extension, distribution and conversion technologies.
efen’s reliable, plug-and-play products supplement cross-platform computer
sy
stems, professional audio/video environments and HDTV systems of all sizes
with hard-working solutions that are easy to implement and simple to operate.
T
he Gefen 4x1 DVI Switcher
The rack-mountable Gefen 4x1 DVI Switcher offers an economical solution by
liminating the need to purchase many displays for each DVI source in a studio
or lab situation. A plug-and-play solution, the 4x1 DVI Switcher shares one DVI
display with up to four computers or other DVI video sources, saving space on
y
our desktop. The source computer is selected using the included IR remote
ontrol or through RS-232 control.
How It Works
The DVI monitor is connected to the switcher’s output. Up to four DVI sources
onnect to the switcher’s DVI inputs using included high quality DVI cables.
The included power supply is connected to the switcher via the locking power
lug and then to a power outlet. The currently selected computer’s video signal
appears on the shared monitor. Video sources are selected/switched using the
MT-4IR remote control, RS-232 control, or the input selector push button on the
f
ront panel of the switcher.
Page 5
OPERATION NOTE
S
2
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFEN 4X1 DVI SWITCHER
• The 4x1 DVI Switcher will take any of up to four (4) DVI single-link resolution
inputs and switch them, one at a time, to a DVI output device such as a
displa
y/
monitor or projector. Resolutions up to 1920x1200 are supported.
• The 4x1 DVI Switcher is housed in a metal box for better RF shielding.
•
omputers must be turned on one at a time and the Switcher must be
s
elected to the computer that is booting up. Afterwards, the Switcher can be
outed to any input.
Page 6
FEATURE
S
Features
• Switches easily between any four DVI sources
• Maintains hi
g
hest resolution single-link DVI at 1920x120
0
• Discrete IR remote control incl
uded
• Serial RS-232 remote port for switching via automated control or P
C
• Supports DDWG standards for DVI monitors
ackage Includes
:
1) 4x1 DVI Switcher
4) 6 ft. DVI cables
1) IR Remote Control Uni
t
1) 5V DC Power Supply
1) User Manual
Page 7
4
FRONT PANEL LAYOU
T
Front Pane
l
Page 8
5
FRONT PANEL DESCRIPTION
S
nput Indicators (1 - 4
)
Each of these LED indicators glows bright blue according to the current DVI
input selection (see
nput Buttons, below
)
eceives IR signals from the included IR Remote Control Unit.
nput Buttons (1 - 4
)
Pressing each of these buttons selects the desired DVI input source (1 - 4).
4
owe
r
This LED indicator will glow bright red when the unit is powered..
Page 9
BACK PANEL LAYOU
T
Back Panel
5
Page 10
7
BACK PANEL DESCRIPTION
S
5V D
C
onnect the included 5V DC locking power supply to this receptacle.
In
- In
Each of these ports will accept a DVI source device.
DVI Ou
t
This port will accept a single DVI output device. The currently selected DVI
input source will be output via this port.
4 RS-232
This port is used for serial communication using an RS-232 control device. For
details, refer to page 16.
5 Ext I
R
onnect an IR extender (Gefen part no. EXT-RMT-EXTIR) cable to this port.
Page 11
IR REMOTE CONTROL UNI
T
2
Activity Indicato
r
This LED will be activated momentarily each time a button is pressed.
ource Selection Buttons (1 - 4
)
Th
ese buttons are used to selec
t which
source is routed to a mo
nitor.
ayout and Description
NOTE: An Activity Indictor that fl ashes quickly while holding down
any one of the sixteen buttons indicates a low battery. Replac
e
the IR Remote Control battery as soon as possible.
Page 12
IR REMOTE CONTROL UNI
T
Installing the Batter
y
1.
emove the battery cover on the back of the IR Remote Control Unit.
2. Insert the included batter
y
into the open battery slot. The positive (+) side of
the battery should be facing up.
.
eplace the battery cover
.
The Remote Control unit ships with two batteries. One battery is required for
operation and the other battery is a spare.
WARNING: Risk of explosion if battery is replaced by an
incorrect t
y
pe. Dispose of used batteries according to the
in
structions
.
Battery Slo
t
Page 13
10
orresponding DIP Switch Settings for each IR Channel
It is important that the IR channel on the Remote Control unit, matches the IR
hannel set on the 4x1 DVI 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 DVI
S
witcher must also be set to IR channel 0. See the next page for
details on how to chan
g
e the IR channel on the 4x1 DVI Switcher.
IR REMOTE CONTROL UNI
T
IR Channel
0
default
)
1 2
ON
Setting the IR channel on the Remot
e
In the event that IR commands from other remote controls interfere with the
s
upplied IR Remote Control unit, changing the IR Remote Control’s IR channel
will
fi
x the problem. The IR Remote Control unit has a bank of DIP switches used
f
or setting the IR channel. The DIP switch bank is located underneath the batter
y
ver.
eft: Picture of the
opened rear batter
y
ompartment of the IR
emote showing the
xposed DIP Switch
nk between th
e
battery chambers.
IR Channel
2
1 2
ON
IR Channel
3
1 2
ON
IR Channel
1
1 2
ON
1 2
Page 14
1
1
Setting the IR channel on the 4x1 DVI Switcher
In order for the IR Remote Control Unit to communicate properly with the
witcher, both the Remote and the Switcher must be set to the same IR channel.
The 4x1 DVI
S
witcher has a bank of eight (8) DIP switches on the bottom of the
nit. DIP switch 7 and 8 are used to set the IR channel for the Switcher. DIP
s
witches 1 - 6 are reserved for future expansion.
se the following settings for DIP switch 7 and 8 to set the IR channel on the 4x1
DVI Switcher
:
IR REMOTE CONTROL UNI
T
7 8
ON
eft : DIP switch 7 and 8 on
the bottom of the Switcher.
Th
ese
DIP switches are in the
default (OFF) position.
7 8
IR Channel
1
ON
IR Channel
2
ON
7 8
IR Channel
3
ON
7 8
Page 15
12
CONNECTING THE 4X1 DVI SWITCHER
How to Connect the 4x1 DVI Switcher
1
onnect up to four (4) computers to the DVI inputs on the back panel of the
witcher using the included DVI cables.
2
onnect a DVI display to the DVI output on the back panel of the Switcher.
PTIONAL: To use the RS-232 control, connect an RS-232 cable
between the Switcher and RS-232 host controller.
PTIONAL: To extend the range of the IR control, connect an IR
Extender (Gefen part no. EXT-RMT-EXTIR) to the back of the Switcher.
onnect the included 5V locking power supply to the power receptacle on
the 4x1 DVI Switcher
4
onnect the AC power cord to an available electrical outlet.
Wiring Diagram for the 4x1 DisplayPort Switcher
A
TTENTION: This product should always be connected to a
g
rounded electrical socket.
EXT-DVI-441N
DVI CABLE
Switcher
DVI MONITOR
Computer
ter
Computer
Computer
Computer
Page 16
1
3
OPERATING THE 4X1 DVI SWITCHER
Front Panel Buttons and LED Indicators
The front panel of the 4x1 DisplayPort Switcher has a set of four (4) LED
indicators, displa
ying
which input (source) is being displayed. Each of these LED
indicators corresponds to one o
f
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 Press button 3 on the front panel of the 4x1 DisplayPort Switcher.
2 The LED indicator for input 3 will glow bright blue on the front panel.
2
Page 17
1
4
Switching sources using the IR Remote Control Uni
t
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
IT Remote Control Unit will glow yellow, indicating that a button was pressed.
2 The LED indicator for input 1 will glow bright blue.
OPERATING THE 4X1 DVI SWITCHER
2
Page 18
15
Switching sources using RS-232
onfi gure the Switch for use with RS-232 (see page 14 for details).
Example:
S
witch to input 4 using RS-23
2
1Type
then press the Enter key to route the Switcher to Input 4. See page
15 for additional information on RS-232 commands.
2 The LED indicator for Input 4 will glow bright green on the front panel.
OPERATING THE 4X1 DVI SWITCHER
2
erminal ready..
.
R
oute to Input 4
Page 19
1
6
RS-232 CONTROL
nly pins 2 (Receive), 3 (Transmit), and 5 (Ground) are used for communication.
A null-modem adapter should not be used with this product.
54321
9876
12345
6789
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 ............................................................................................................. Non
e
top bits ................................................................................................................
1
Flow Control .................................................................................................. Non
e
NOTE: Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are
sed for communication. A null-modem adapter should n
ot
be
sed with this product.
Page 20
SPECIFICATION
S
17
aximum Pixel Clock................................................................................165 MH
z
Input Video Signal................................................................................1.2 Volts p-
p
Input DDC Signal...........................................................................5 Volts p-p (TTL
)
DVI Input Connectors......................................(4) DVI-I 29-pin female (digital onl
y)
DVI Output Connectors...................................(1) DVI-I 29-pin female (digital onl
y)
-232 Connector.........................................................................(1) DB-9, femal
e
IR Extender Connector........................................................ (1) 3.5 mm mini-stere
o
Power Supply................................................................................................5 V D
C
Power Consumption........................................................................10 Watts (max.
)
Dimensions..........................................................................14” W x 1.2” H x 2.9”
D
hipping Weight..............................................................................................7 lbs.
Page 21
1
8
WARRANTY
efen warrants the equipment it manufactures to be free from defects in material
and workmanship.
I
f
equipment fails because of such defects and Gefen is notifi ed within two (2)
y
ears from the date of shipment, Gefen will, at its option, repair or replace the
quipment, provided that the equipment has not been subjected to mechanical,
lectrical, or other abuse or modifi cations. Equipment that fails under conditions
other than those covered will be repaired at the current price of parts and labor in
ect 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 fi tness for any
articular purpose, all of which are expressly disclaimed.
1. Proof of sale may be required in order to claim warranty.
2.
ustomers outside the US are responsible for shipping charges to and from
efen.
.
opper 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
s
pecifi cations is subject to change without notice.
For the latest warranty coverage information, refer to the Warranty and Return
Policy under the Support section of the Gefen Web site at www.gefen.com.
RODUCT REGISTRATIO
N
lease register your product online by visiting the Register Product page
nder the Support section of the Gefen Web site
.
Page 22
T
his product uses UL listed power supplies
.
Rev A
7
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