IOGear GCS1902, GCS1904 User Manual
www.iogear.com
User Manual
2/4-Port DisplayPort KVMPTM Switch
with USB 3.0 Hub and Audio
GCS1902 / GCS1904
PART NO. M1434-a / M1435-a
©2017 IOGEAR. All Rights Reserved. Part No. M1434 / M1435. IOGEAR, the IOGEAR logo is trademarks of IOGEAR. Microsoft
and Windows are registered trademarks of Microsoft Corporation. IOGEAR makes no warranty of any kind with regards to the
information presented in this document. All information furnished here is for informational purposes only and is subject to change
without notice. IOGEAR. assumes no responsibility for any inaccuracies or errors that may appear in this document.
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Table of Contents
Introduction 4
Package Contents 4
Features 5
Requirements 6
Operating Systems 6
Overview 7
Hardware Setup 10
Basic Operation 13
Hotkey Operation 14
Advance Conguration 16
Keyboard Operating Platform 19
Keyboard Emulation 20
Firmware Upgrade Utility 22
Specication 25
Troubleshooting 26
Compliance Information 27
Limited Warranty 28
Contact 29
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IOGEAR’s GCS1902/1904 2/4-Port DisplayPort KVMP with USB 3.0 Hub and Audio takes a
giant leap forward in KVM switch functionality by combining KVM switch with a DisplayPort
video interface, and 2-Port USB 3.0 hub. DisplayPort technology provides up to 4K UHD -
3840 x 2160 @30Hz resolution that displays the most vivid high denition images available
while delivering premium sound for music, movies, and gaming.
GCS1902/1904 allows users to access two or four DisplayPort computers from a single
USB keyboard, USB mouse, and DisplayPort monitor console. In addition to the front panel
pushbuttons and hotkeys, IOGEAR’s GCS1902/1904 offers the latest mouse port-switching
functionality to change ports. Power ON detection feature also ensures that if one computer
is powered OFF, the GCS1902/1904 will automatically switch port to the next powered
ON computer.
With built-in USB 3.0 hub, each connected computer has SuperSpeed 5Gbps transfer
rate to all connected peripherals. GCS1902/1904’s independent (asynchronous) switching
feature allows it to focus on one computer with the USB peripheral focus on another
computer. This eliminates the need to purchase separate USB hub or stand-alone
peripheral sharing device – such as printer server, modem splitter, etc.
Featuring a revolutionary combination of 4K resolutions, the next generation USB 3.0
Hub, and enhanced user-friendly operation, IOGEAR’s GCS1902/1904 provides the latest
innovations in desktop KVM technology.
Introduction
GCS1902
1 x GCS1902
2 x DisplayPort Cables
2 x USB 3.0 Cables
2 x Audio Cables
1 x Power Adapter
1 x User Manual
GCS1904
1 x GCS1904
4 x DisplayPort Cables
4 x USB 3.0 Cables
4 x Audio Cables
1 x Power Adapter
1 x Use Manual
Package Contents
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• 2 (GCS1902) or 4 (GCS1904)-Port DisplayPort KVMP Switch with USB 3.0 Hub
and audio
• One USB console controls two (GCS1902) or four (GCS1904) computers and two USB
3.0 peripherals
• Computer selection via front panel pushbuttons, hotkeys, and mouse
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• Independent switching of KVM, USB, and Audio focus
• Superior 4K video quality – 3840x2160 @30Hz
• 2-Port USB 3.0 Hub with SuperSpeed 5Gbps transfer rate
• DisplayPort 1.1 compliant, HDCP compliant
• Supports HD audio through DisplayPort
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• Full bass response for high quality 2.1 channel surround sound systems
• Power On Detection – if a computer is powered OFF, GCS1902/1904 automatically
switches to the next powered ON computer
• Dual-Mode DisplayPort (DP++) supports HDMI and DVI output with an adapter
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• Hot pluggable – add or remove computers without turning GCS1902/1904 power OFF
• Mouse emulation or bypass feature supports most mouse drivers and multifunction mice
• Multi-platform support –Windows®7, Windows®8.1, Windows®10, Mac®, and Linux
®
• Multilingual keyboard mapping supports English, Japanese, French, and
German keyboards
• Mac® keyboard support and emulation
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• Auto Scan Mode feature to monitor all computers
• Firmware upgradeable
Note:
1. Mouse port switching supported by mouse emulation mode using a USB 3-button
mouse wheel.
2. HD audio through DisplayPort cannot be switched independently.
3. Dual-Mode DisplayPort technology (DP++) does not require an active adapter for most
single display setups. Active DisplayPort adapters are recommended if you are unsure
of the video source’s DP++ compatibility.
4. PC keyboard combinations emulate Mac® keyboards. Mac® keyboards only work using
their own Operating System.
Features
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Console
• 1 DisplayPort monitor
• 1 USB mouse
• 1 USB keyboard
• Speakers (optional)
Computers
• DisplayPort port
• Type A USB port
• Audio ports (optional)
Cables
Use only the included IOGEAR DisplayPort KVM cable sets, designed specically to work
with the GCS1902/1904.
Note:
The quality of the display is affected by the quality and length of the cables. If you need
additional cable set, please contact your dealer or IOGEAR to purchase IOGEAR
approved cables.
Requirements
Operating Systems
OS Version
Windows 2000 / 7 / 8 / 8.1 / 10
Linux RedHat 6.0 and higher
SuSE 8.2 and higher
Mandriva (Mandrake) 9.0 and higher
Novell Netware 5.0 and higher
Mac OS 9 and higher
DOS 6.2 and higher
2-Port DisplayPort KVMP Switch
GCS1902
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7 4 6
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GCS1902 Front View
GCS1902 Back View
Overview
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4-Port DisplayPort KVMP Switch
GCS1904
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2
3
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GCS1904 Front View
GCS1904 Back View
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No. Component Description
1 Port Selection
Pushbuttons
For manual port selection (see Manual Switching)
• Press a port selection pushbutton for longer than two seconds to
bring the KVM, USB hub, and audio focus to the computer connected
to its corresponding port.
• Press a port selection pushbutton twice to bring the audio focus to
the computer connected to its corresponding port.
• Press a switch for less than two second to bring only the KVM focus
to the computer connected to its corresponding port.
• Press Auto Scan switch to start Auto Scan Mode or press switches
• 1 and 2 simultaneously for two seconds.
2 Port LEDs The Port LEDs are built into the Port Selection Pushbuttons. The upper
LEDs are KVM Port LEDs, the lower LEDs are the USB LEDs:
KVM
• An ONLINE LED lights DIM ORANGE to indicate that the
computerconnected to the corresponding port is up and running.
• A selected LED lights BRIGHT ORANGE to indicate that the
computer connected to the corresponding port is the one that has the
KVM FOCUS.
• LED ashes to indicate that the computer connected to its
corresponding port is being accessed under Auto Scan Mode.
USB
A selected LED lights GREEN to indicate that the computer connected
to its corresponding port has the access to the USB Peripherals.
3 Audio Ports The cable from the main speakers is to be connected into this audio
port. Speaker connected into these audio ports have priority over those
connected in the rear side panel.
4 USB 3.0 hub USB peripherals (printers, scanners, etc.) can be connected into
these ports, designated with USB 3.0 specications - up to 5 Gbps
transfer code.
5 Console Ports The cables from the DisplayPort monitor, USB keyboard, USB mouse,
and speakers are plugged into these ports.
Each connector is marked with an appropriate icon to indicate its use.
6 KVM Ports The KVM cables connecting the computers to the GCS1902/1904 are
plugged into these ports.
Each KVM port section is comprised of a speaker jack, USB type B
socket and a DisplayPort connector.
7 Power Jack The power adapter cable is plugged into this jack.
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Hardware Setup
Please make sure that all devices including the GCS1902/1904, DisplayPort monitor, and
computers are powered OFF.
1. Connect the USB keyboard and the USB mouse to the GCS1902/1904 Console ports
located on the rear side panel.
2. Connect the DisplayPort monitor to the GCS1902/1904 Console DisplayPort port
located on the rear side panel. Then, turn DisplayPort monitor on.
3. Connect the main speakers into the GCS1902/1904 speaker jacks located on the
front side panel. The speakers connected into this front port have priority over those
connected on the rear port of GCS1902/1904.
4. Connect the secondary speakers into the GCS1902/1904 Console speaker jacks
located on the rear panel.
5. Using the provided cables from IOGEAR;
a. Connect the provided DisplayPort connector into DisplayPort ports in the KVM Port
section of the GCS1902/1904.
b. Connect the provided USB and speaker connector into their corresponding USB and
speaker ports on the GCS1902/1904.
c. Connect the other end of the KVM cables into their respective DisplayPort, USB and
speaker ports on the computers.
6. Connect up to two USB peripherals into the USB type A ports in the USB 3.0 hub
section (front and rear panel of the GCS1902/1904).
7. Connect the provided power adapter to an AC power source. Then, connect the power
adapter cable into the GCS1902/1904 power jack.
8. Turn all connected computers power to ON.
Note:
1. Verify that all connectors are on the same KVM Port sockets (all in Port 1, all in Port 2, etc.) and
that each socket is marked with an appropriate icon to indicate self.
2. By default the switch links to the rst computer that is powered on.
3. It is recommended that the total cable length from the PC to monitor is less than 3 meters.
4. Choosing high quality cables helps to ensure that 3840x2160 @30Hz resolutions can be reached.
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