IOGear GCS1204 User manual

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GCS1204
Part No. M1043
Installation
Installation Guide
USB 2.0 Dual Link DVI KVMP Switch

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Table of Contents
Conventions 4
Package Contents 5
Requirements 6
Operating systems 7
Components 8
Hardware Setup 12
Basic Operation 14
Port ID numbering 17
Advanced Conguration 21
Summary of Hotkey Settings 23
Comparison of Default and Alternate
Manual Port selection settings
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Firmware up-grade mode 26
The Firmware Upgrade Utility 32
Troubleshooting 36
Specications 37
Video Specications 39
Federal Communications Commission
(FCC) Statement
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CE Statement 42
Contact 43
Warranty 44

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Conventions
This manual uses the following conventions:
Monospaced Indicates text that you should key in.
[ ] Indicates keys you should press. For example, [Enter] means to press the Enter key. If keys need to
be chorded, they appear together in the same bracket with a plus sign between them: [Ctrl+Alt].
1. Numbered lists represent procedures with sequential steps.
• Bullet lists provide information, but do not involve sequential steps.
––> Indicates selecting the option (on a menu or dialog box, for example), that comes next.
For example, Start ––> Run means to open the Start menu, and then select Run.
Indicates critical information.

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Package Contents
1- USB 2.0 DVI KVMP Switch
4- Custom KVM Cable Sets (6 ft)
1- USB-to-PS/2 Converter
1- Firmware Upgrade Cable
1- Power Adapter
1- User Manual
1- Registration form
Verify all the components are present and that nothing was damaged in shipping. If you encounter a problem,
contact your dealer, or IOGEAR.
Read this manual thoroughly and follow the installation and operation procedures carefully to prevent any damage
to the unit, and / or any of the devices connected to it.

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Requirements
USB mouse
USB keyboard
Microphone and speakers (optional)
Monitor with a DVI input.
Computers
A DVI-D port
USB Type A port
Audio ports (optional)

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Operating Systems
OS Flavor Version
Windows 2000 and higher
Linux RedHat 7.1 and higher; FedoraCore 2 and higher
SuSE 9.0 and higher
Unixa AIX 4.3 and higher
FreeBSD 4.2 and higher
Sun Solaris 9 and higher
Novell Netware 5.0 and higher
MAC OS 9.0 and higher
Note: Supports Linux Kernel 2.6 and higher.

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Components
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No. Component Description
1 Port Select
Pushbuttons
Press a pushbutton for longer than two seconds to bring the KVM, USB, and audio
focus to the computer attached to its corresponding port.
2 Port LEDs The Port LEDs are located below the Port selection buttons
The upper ones are the KVM port LEDs and the lower are the USB LEDs
KVM: Lights Dim Orange to indicate the computer attached to the port is on line. It changes
to bright Orange when the port is selected and ashes to indicate auto scan has been
activated.
USB: Lights dim green to indicate a USB connection. It changes to bright Green to indicate
to indicate the KVM is focused on the port
3 Console Ports
Audio
The connections for your main console microphone and speakers.
These audio ports have priority over the ports in the rear panel.
4 USB 2.0
Peripheral
Port
One of the two USB 2.0 peripheral ports. It is backwards compatible with USB-1

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Rear View
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No. Component Description
1 Firmware Upgrade Port Connection for the rmware up-grade cable
2 USB Console Ports USB1.0 Keyboard and mouse connections
3 Console Port Section Monitor, mike, and speaker connections
4 CPU Port Section Connections for the cables that link the switch to your computers.
Each CPU port is comprised of a microphone jack, speaker jack,
USB type B socket and a DVI connector
5 Power Jack Power adapter connection
6 USB Peripheral Port Connection for USB 2.0 peripherals ( printers, scanners, etc)

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Hardware Setup
Make sure that power to all the devices you will be installing has been turned off. You must unplug
the power cords of any computers that have the Keyboard Power On function.
Cable Connection
To install your GCS1204, refer to the diagram on the following page. The numbers in the diagrams correspond to
the steps, below.
1. Connect your USB keyboard and mouse into the USB Console Ports located on the unit’s rear panel.
2. Connect your microphone, speakers, and monitor into the Console ports located on the unit’s rear panel
3. Using the KVM cables, connect the DVI connector to a DVI socket in the CPU Port section of the
switch, then connect the accompanying USB, microphone and speaker connectors to their
corresponding USB, microphone, and speaker sockets.
4. At the other end of the cable, connect the USB, video, microphone, and speaker cables to their
respective ports on the computer.
5. Connect your USB peripherals to the type A sockets (one is located on the front, the other is located on the
rear of the unit).
6. Connect the power adapter that came with your switch to the jack on the switch then connect the adapter to
an AC power source.

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7. Verify your connections: ports are correct and
icons match the connection type i.e. mouse
and mouse icon
8. Power on the computers.
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Manual Switching
There are two convenient methods to access the computers:
Manual – pressing the port selection pushbuttons located on the unit’s front panel.
Hotkey – entering key combinations from the keyboard. Hotkey port selection is discussed in the next
chapter.
Manual port selection
Press and release a port selection pushbutton to focus the computer on the corresponding port. The USB
and Audio focus do not change (expect a 2 sec delay).
Press a port selection pushbutton twice to focus the audio on the corresponding port (expect a 2 sec
delay).
Press and hold a port selection pushbutton for more than 2 seconds to change KVM, USB, and Audio
focus to the computer on the selected port.
Press and hold port selection pushbuttons 1 and 2 for more than 2 seconds to start Auto Scan Mode.
Basic Operation

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Hotkey switching
All port switching begins by tapping the Scroll Lock key twice. The tables below describe the actions that
each combination performs.
Note:
If the Scroll Lock key conicts with programs running on the computer, or your keyboard does not have a
Scroll Lock, see the section titled Advanced Switching to use the alternate switching method.

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* The USB ports cannot be switched independently of each other.
Hotkey Action
[Scroll Lock] [Scroll Lock] [Enter] Increments the KVM, USB, and Audio focus to the next
higher port ( port 4 wraps to 1)
[Scroll Lock] [Scroll Lock] [K] [Enter] Increments only KVM focus to the next port
[Scroll Lock] [Scroll Lock] [U] [Enter] Increments only the USB hub to the next port
[Scroll Lock] [Scroll Lock] [S] [Enter] Increments only Audio to the next port
Cycling though the ports

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Each CPU port on the GCS1204 is assigned a port number (1, 2, 3, or 4). The port numbers are marked
on the rear panel of the switch and each switch LED has a corresponding number for easy identication
The Port ID of a computer is derived from the CPU port number to which it is connected. For example, a
computer connected to CPU port 2 has a Port ID of 2.
The Port ID is used to specify which computer gets the KVM, USB peripheral, and / or audio focus with
the Hotkey port selection method
Going Directly to a Port
Note: The n stands for the computer’s Port ID number. Replace the n with the appropriate Port ID when
entering hotkey combinations
Port ID Numbering

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Hotkey Action
[Scroll Lock] [Scroll Lock][n][Enter] Brings the KVM, USB hub, and audio focus to the computer
attached to the specied port.
[Scroll Lock] [Scroll Lock][n] [K] Enter] Brings only the KVM focus to the computer attached to the
specied port.
[Scroll Lock] [Scroll Lock] [n] [U] [Enter] Brings only the USB hub focus to the computer attached to
the specied port.
[Scroll Lock] [Scroll Lock] [n] [S] [Enter] Brings only the audio focus to the computer attached to the
specied port.
[Scroll Lock] [Scroll Lock] [n] [K] [U] [Enter] Brings the KVM and USB hub focus to the computer
attached to the specied port
[Scroll Lock] [Scroll Lock] [n] [K] [S] [Enter] Brings the KVM and audio focus to the computer
attached to the specied port.
[Scroll Lock] [Scroll Lock] [n] [U] [S] [Enter] Brings the USB hub and audio focus to the computer
attached to the specied port.

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Auto Scanning
The GCS1204’s Auto Scan feature automatically cycles KVM focus through the computer ports at
regular intervals. This allows you to monitor computer activity without having to switch from port
to port manually.
Note:
1. Nstands for the number of seconds the GCS1204 will dwell on a port before moving on to the next.
Replace Nwith a number between 1 and 99 when entering the hotkey combination.
2. While Auto Scan Mode is in effect, ordinary keyboard and mouse functions are suspended – only
Auto Scan Mode compliant keystrokes and mouse clicks can be input. You must exit Auto Scan Mode
in order to regain normal control of the console (hit the space bar or the Esc key).
3. Although the video focus switches from port to port, the keyboard, mouse, and USB focus remain on
the port where Auto Scanning began.

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Hotkey Action
[Scroll Lock] [Scroll Lock] [A] Enter] Invokes Auto Scan. The KVM focus cycles from port to port at
5 second intervals (default interval)
[Scroll Lock] [Scroll Lock] [A] [N] Enter] The KVM focus cycles from port to port at N seconds interval