User Manual
4-Port DualView Mini DisplayPort KVMP Switch with Peripheral Sharing
GCS1924
PART NO. M1203
Table of Contents
Mac Keyboard Emulation
Factory Default Hotkeys Settings
Firmware Upgrade
25
26
27
32
Package Content
4
5
System Requirements
GCS1924 Overview
Installation
6
Upgrade Fail
9
Federal Communications Commission
(FCC) Statement
LED Indication
14
15
17
19
20
24
33
34
35
36
37
Port Switching
CE Compliance
SJ/T 11364-2006
Limited Warranty
Contact
Port Switching via Hotkeys
Auto Scanning
Hotkey Setting Mode (HSM)
Digital & Analog Audio Setup Table
3
Package Content
–
–
–
–
–
–
–
–
1 x 4-port DualView Mini DisplayPort KVMP Switch
8 x Mini DisplayPort 1.1a Cable
4 x USB 2.0 Cable (Type A to Type B)
4 x 3.5mm Audio Cable (Green Head)
4 x 3.5mm Mic Cable (Pink Head)
1 x User Manuel
1 x Power Adapter
1 x Warranty Card
4
System Requirements
Console
–
–
–
–
Two mini DisplayPort Monitors
1 x USB Keyboard
1 x USB Mouse
Speaker / Microphone (Analog / Digital) – Optional *
* Front Audio Port supports Analog Audio output only
Computer
–
–
mini DisplayPort (Single / Dual mini DisplayPort Video card)
Type “A” USB Port
Operating System
–
–
–
–
–
Window XP / VISTA / 7
MAC OSX 10.5.4 or greater
Linux
Unix (Free BSI)
Netware 6.0 / 6.5
5
GCS1924 Overview
Front View
1. Port 1 Touch Panel
2. Port 2 Touch Panel
3. Mode Touch Panel
4. Port 3 Touch Panel
5. Port 4 Touch Panel
6. Front Panel Console Mic. Connection (analog only)
7. Front Panel Console Audio Connection (analog only)
8. Front Panel USB 2.0 Peripheral Sharing Port (w/ Quick Charge)
9. LEDs status
1
2
3
4
5
6
7
8
9
6
Rear View
12. Console Mini DisplayPort B
13. Console Mini DisplayPort A
14. Console Mini-TOSLINK Mic.
(Digital/Analog)
15. Console Mini-TOSLINK Audio
(Digital/Analog)
16. Console USB Mouse Port
17. Console USB Keyboard Port
18. DC Power Jack
7. CPU 1 Mini DisplayPort 1A
8. CPU 1 Mini-TOSLINK Mic.
(Digital/Analog)
9. CPU 1 Mini-TOSLINK Audio
(Digital/Analog)
10. CPU 1 USB 2.0 Connection
11. Console USB 2.0 Peripheral
Sharing Port
1. CPU 2 Mini DisplayPort 2B
2. CPU 2 Mini DisplayPort 2A
3. CPU 2 Mini-TOSLINK Mic.
(Digital/Analog)
4. CPU 2 Mini-TOSLINK Audio
(Digital/Analog)
5. CPU 2 USB Connection
6. CPU 1 Mini DisplayPort 1B
1
3
4
6
8
9
12
14
15
2
5
7
10
11
13
16 17
18
7
Side View
6. CPU 3 Mini DisplayPort 3B
7. CPU 3 Mini DisplayPort 3A
8. CPU 3 Mini-TOSLINK Mic. Connection
(Digital/Analog)
9. CPU 3 Mini-TOSLINK Audio Connection
(Digital/Analog)
1. CPU 4 Mini DisplayPort 4B
2. CPU 4 Mini DisplayPort 4A
3. CPU 4 Mini-TOSLINK Mic. Connection
(Digital/Analog)
4. CPU 4 Mini-TOSLINK Audio Connection
(Digital/Analog)
10. CPU 3 USB 2.0 Connection
5. CPU 4 USB Connection
3
4
1
8
9
6
5
2
7
10
8
Installation
STEP 1
Please make sure your source devices and displays are powered off before you start.
STEP 2
Connect the mini DisplayPort cables
from your monitors to the console
mini DisplayPort A and/or B. Port A
will be your main monitor and Port
B will be your extended desktop
monitor.
B
A
9
STEP 3
Connect your USB keyboard and mouse to the
console USB keyboard port and console USB
mouse port. Connect your USB devices to the
USB peripheral port, you can add a USB hub if
you need to connect multiple USB devices.
10
STEP 4
Connect your mini DisplayPort and a set of IOGEAR custom cable
(USB 2.0 and Audio Jack 3.5mm) from KVMP switch to each of your
computers – mini DisplayPort connection from mini DisplayPort A to
the mini DisplayPort output and USB connection to open USB port
from your computer. Connect the audio and mic. connectors to your
audio output and mic. input
A
11
STEP 5
Connect mini DisplayPort cables from mini
DisplayPort B of the KVMP to your second mini
DisplayPort output of your computers. Repeat
the same for port #2, 3 and 4.
A
B
12
STEP 6
Plug the power adapter into the power outlet and
connect it to the DC power jack from the KVMP
Final Step
Installation is complete. Turn on your computers
and other devices and enjoy.
13
LED Indication
LED
Description
Online / Selected
Dim Orange
A device is connected to the KVMP switch but the port is
not on focus
Bright Orange
The specific port has focus on the KVM (Keyboard, video
and mouse)
Audio
Green
Green
The specific port has focus on the audio
USB Link
The specific port has focus on the USB peripheral sharing
ports
14
Port Switching
Simply touch the front panel from the multimedia KVMP switch or trigger hotkeys from your keyboard.
Port Switching via Front Panel Touch
Function
Touch Panel Control
Switch all focus (KVM, audio
and USB) to a specific port
MODE
KVM AUDIO
USB LINK
LEDs will
1. Touch
flash
once,
,
, and
2. Then touch the specific port to switch all focus to that port
MODE
Switch KVM focus to a
specific port
KVM
LED will flash
1. Touch
twice,
2. Then touch the specific port to switch KVM port to that port
15
Switch audio focus to a
specific port
MODE
AUDIO
LEDs will flash
1. Touch
three times,
2. Then, touch the specific port to switch Audio port to that port
Switch USB focus to a
specific port
MODE
USB LINK
LED will flash
1. Touch
four times,
2. Then, touch the specific port to switch USB focus to that port
16
Port Switching via Hotkeys
Port Switching via Hotkeys
All port swtiches begin with tapping the Scroll Lock key twice. The table below describes the actions
that each combination performs.
Note: If using the Scroll Lock key conflicts with other programs running on the computer, the Ctrl key
can be used, instead. (see page 20 for details).
Hotkeys
Description
[Scroll Lock] [Scroll Lock] [Enter]
Switch all focus (KVM, audio and USB) to the next
port
[Scroll Lock] [Scroll Lock] [n] [Enter]
[Scroll Lock] [Scroll Lock] [k] [Enter]
Switch all focus (KVM, audio and USB) to port n*
Switch KVM focus to the next port
Continue next page
17
Port Switching via Hotkeys
[Scroll Lock] [Scroll Lock] [n] [k] [Enter]
[Scroll Lock] [Scroll Lock] [s] [Enter]
Switch KVM focus to port n*
Switch audio focus to the next port
Switch audio focus to port n*
[Scroll Lock] [Scroll Lock] [n] [s] [Enter]
[Scroll Lock] [Scroll Lock] [u] [Enter]
[Scroll Lock] [Scroll Lock] [n] [u] [Enter]
[Scroll Lock] [Scroll Lock] [n] [k] [u] [Enter]
[Scroll Lock] [Scroll Lock] [n] [k] [s] [Enter]
[Scroll Lock] [Scroll Lock] [n] [u] [s] [Enter]
Switch USB focus to the next port
Switch USB focus to port n*
Switch KVM and USB focus to port n*
Switch KVM and audio focus to port n*
Switch USB and audio focus to port n*
*Note: n is an interval that stands for the Port number
k stands for KVM focus
s stands for audio focus
u stands for USB focus
18
Auto Scanning
You can either activate Autoscan Mode via front panel push button or hotkeys.
Function
Description
[Scroll Lock] [Scroll Lock]
[a] [Enter]
Activate Autoscan mode. It will cycle from
port to port every 5 seconds (default)
Auto Scan Hotkeys
[Scroll Lock] [Scroll Lock]
[a] [n] [Enter]
Activate Autoscan mode. It will cycle from
port to port every n seconds**
*Note: Autoscan Mode from front panel push button will be scanning a port every 5 seconds by default. If you
wish to have the Autoscan Mode be scanning with different time interval, please refer to trigger Autoscan Mode
from hotkeys.
**Note: n is an interval between 1 and 99 that stands for the time (in second) desired for scanning each port.
19
Hotkey Setting Mode (HSM)
Hotkey Setting Mode (HSM) is used to set up your GCS1924 configuratino. All operations begin with
invoking Hotkey Setting Mode (HSM). When HSM is active, the Caps Lock, and Scroll Lock LEDs flash
in succession to indicate that HSM is in effect. They stop flashing and revert to normal status when you
exit HSM. Ordinary keyboard and mouse functions are suspended - only Hotkey compliant keystrokes
and mouse clicks (described in the sections that follow) can be input.
At the conclusion of some hotkey operations, you automatically exit hotkey mode. With some
operations, you must exit manuallly. To exit HSM manually, press Esc key, or the Spacebar.
Hotkey
Description
1. Press and hold [Num Lock] (Use the
[Clear] key on a Mac keyboard.)
2. Press and release [-]
Invoking hotkey setting mode
3. Release [Num Lock] (Use the [Clear]
key on a Mac keyboard.)
Invoke HSM, then press [h]
To change the HSM invocation keys from [NumLock]
and [-] to [Ctrl] and [F12].
20
Hotkey
Description
Invoke HSM, then press [t]
To toggle port switching hotkeys between [Scroll Lock]
[Scroll Lock] and [Ctrl Ctrl].
Invoke HSM, then press [B]
Invoke HSM, then press [F2]
Invoke HSM, then press [F10]
To toggle the beeper on and off.
To enable the Mac keyboard emulation.
To change the keyboard emulation from Mac or SPC
mode to PC mode.
Invoke HSM, then press [n]
Invoke HSM, then press [m]
Invoke HSM, then press [w]
To toggle between keyboard emulation enabled and
disabled.
To toggle between mouse emulation enabled and
disabled.
To toggle between mouse port switching enabled and
disabled. Mouse port switching allows you to use the
mouse wheel button (clicking twice) to switch ports.
21
Hotkey
Description
Invoke HSM, then press [d]
To store console monitor's EDID in order to optimize the
display resolution.
Invoke HSM, then press [e]
To toggle between power on detection enabled and
disabled. Power on detection allows the switch to
automatically switch to the next powered on video
source when the current one is powered off.
Invoke HSM, then press [l]
Invoke HSM, then press [F1]
To toggle the front panel USB function from Datalink
mode to Quick Charge mode.
To set the keyboard and mouse to SPC mode, so they
work under special operating systems as a standard
104 key keyboard and mouse.
Invoke HSM, then press [r] [Enter]
Invoke HSM, then press [x] [Enter]
To reset the hotkey setting to their default settings.
To enable/disable the port switch hotkeys ([Scroll Lock]
[Scroll Lock]/[Ctrl] [Ctrl]).
22
Hotkey
Description
Invoke HSM, then press [u] [p] [g] [r] [a] [d]
[e] [Enter]
To invoke the firmware upgrade mode - front panel LED
will start flashing indicating that the firmware upgrade
mode in on.
Invoke HSM, then press [nn] [Enter]
To set the keyboard language layout. "nn" is the two
digit number that represents the keyboard language
code: 33 for US English; 08 for French; 15 for Japanese.
Invoke HSM, then press [F4]
Invoke HSM, then press [F5]
To list the switch's current settings via a text editor or
word processor.
To perfom a reset on all USB devices.
*Note: To exit HSM manually, press Esc or spacebar
23
Digital & Analog Audio Setup Table
GCS1924 offers both digital and analog Audio; the rule of the audio distribution is “digital in digital out”
and “analog in analog out”. The table below explains this in detail.
KVM Console
Audio Out
"Digital Audio Out
(Refer to #15 on Page 7)" (Refer to #15 on Page 7
and #7 on Page 6)"
"Analog Audio Out
KVM CPU Audio
CPU 1
Digital In
Analog In
Digital In
Analog In
Digital In
Analog In
Digital In
Analog In
Digital Out
No Audio
Digital Out
No Audio
Digital Out
No Audio
Digital Out
No Audio
No Audio
Analog Out
No Audio
CPU 2
CPU 3
CPU 4
Analog Out
No Audio
Analog Out
No Audio
Analog Out
*For Front Panel Audio/Mic, it only outputs Analog signal through sound stereo devices.
**When both Console Audio and Front Panel Audio are connected, “Only” Front Panel Audio will
output Audio signal.
24
Mac Keyboard Emulation
The PC compatible (101/104 key) keyboard can emulate the functions of the Mac keyboard. The
emulation mappings are listed in the table below.
PC Keyboard
[Print Screen]
Mac Keyboard
PC Keyboard
[Shift]
Mac Keyboard
Shift
Ctrl
F13
F14
=
[Crtl]
[Scroll Lock]
[Ctrl] [1]
[Ctrl] [2]
[Ctrl] [3]
[Ctrl] [4]
[Alt]
[Enter]
Return
Delete
Help
[Backspace]
[Insert]
[Ctrl]
F15
Alt
*Note: When using key combinations, press and release the first key (Ctrl), then press and release the
second key.
25
Factory Default Hotkeys Settings
Setting
Default
Alternate
Port Switching
[Scroll Lock] [Scroll Lock]
[Num Lock] + -
5 Seconds
PC Compatible
Enabled
[Ctrl] [Ctrl]
[Ctrl] + [F12]
1~99 Seconds
Mac, Linux
Disabled
Invoke HSM
Auto Scan Interval
Keyboard OS Platform
Mouse Emulation
Mouse Port-switching
Power-on Detection
Keyboard Emulation
Firmware Upgrade Mode
Port Switching Keys
Buzzer
Disabled
Enabled
Enabled
Disabled
Enabled
Disabled
Disabled
Enabled
Enabled
Disabled
Enabled
Disabled
Keyboard Language Layout
English
Japanese, French
26
Firmware Upgrade
The Window-based Firmware Upgrade Utility (FWUprade.exe) provides a smooth, automated process for
upgrading the GCS1924 firmware.
Note: In order to perform a firmware upgrade, you need to use a computer that’s not connected to the
KVM.
Step 1
Connect a USB cable to any open USB port of the KVM and the any open USB port on the computer.
Connect power adapter to your power outlet and the KVM.
Step 2
upgrade to the computer.
Step 3
Shut down all the computers that are connected to the KVM. Then Invoke Firmware Upgrade Mode.
(Please refer to Hotkeys Setting Mode section.) The front panel LEDs flash together to indicate Firmware
Upgrade Mode is in effect.
27
Step 4
Extract the file with WinRAR or compatible
software. Then double click on the execute
file to begin with the Firmware Upgrade Utility.
Step 5
The Firmware Upgrade Utility welcome screen
appears. Read the License Agreement and
click “I Agree” then click “Next” if you wish
to continue with the firmware upgrade.
Otherwise, click “Cancel” to exit.
28
Step 6
Choose the correct KVM that you wish to
perform firmware upgrade from the “Device
List” and then click “Next” to continue. Then
the Firmware Upgrade Utility will verify if there
is a KVM connected to the computer by the
firmware upgrade cable. (Check Firmware
Version checkbox is optional)
29
Step 7
If you have checked the “Check Firmware Version” checkbox, then the utility will check the current firmware
that is on your KVM. If the current firmware is newer than the firmware that you wish to upgrade to, a window
will popup and prompt you to ask if you wish to proceed. Simply click “Yes” to start the upgrade and “No”
to cancel the upgrade.
Note: If you did not check the “Check Firmware Version” checkbox, utility will perform the upgrade
automatically no matter what version of firmware you have in the KVM.
30
Step 8
When the firmware upgrade is done, you will
see “Firmware upgrade OK” in the “Status
Messages” window. Then simply click “Finish”
to complete the whole firmware upgrade
process.
Final Step
Now the KVM will reset by itself and it will be
ready for usage after the rest.
Note: If you see warring message of Mac O.S.
version incompatible, please contact IOGEAR
service staff for latest firmware upgrade tool
31
Upgrade Fail
If you don’t see “Firmware upgrade OK” in the “Status Messages” window, it means the utility has failed to
complete the firmware successfully. If that occurs, please do the following:
Step 1
Unplug all USB cables and DC power adapter from GCS1924.
Step 2
Plug single USB cable in the last CPU port with PC powered on.
Step 3
Plug DC power adapter, the GCS1924's port LED will start flash after powered on.
Step 4
Run FW upgrade program again
32
Federal Communications Commission (FCC) Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential setting. This product generates, uses,
and can radiate radio frequency energy and, if not installed and used as directed, it may cause
harmful interference to radio communications. Although this product complies with the limits
for a Class B digital device, there is no guarantee that interference will not occur in a particular
installation.
33
CE Compliance
This device has been tested and found to comply with the following European Union
directives: Electromagnetic Capability (89/336/EMC), Low Voltage (73/23/EEC) and
R&TTED (1999/5/EC).
34
SJ/T 11364-2006
The following contains information that relates to China.
有毒有害物质或元素
部件名称
多溴联苯
多溴二苯醚
铅 (Pb)
汞 (Hg)
镉（Cd）
六价 (Cr(VI))
（PBB）
○
（PBDE）
○
电器部件
机构部件
●
○
○
○
○
○
○
○
○
○
○:表示该有毒有害物质在该部件所有均质材料中的含量均在SJ/T 11363-2006规定的限量要求之下。
●:表示符合欧盟的豁免条款，但该有毒有害物质至少在该部件的某一均质材料中的含量超出
SJ/T 11363-2006的限量要求。
×:表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T 11363-2006的限量要求。
35
Limited Warranty
WE’RE HERE TO HELP YOU!
NEED ASSISTANCE SETTING UP THIS PRODUCT?
Make sure you:
Warranty Information
This product carries a 3 Year Limited Warranty. For the terms and conditions of this warranty,
please go to http://www.iogear.com/support/warranty
Register online at http://www.iogear.com/register
Important Product Information
Product Model
Serial Number
36
Contact
IOGEAR
Toll Free 866-9-IOGEAR (USA)
Phone: 949-453-8782
19641 Da Vinci, Foothill Ranch, CA92610
support@iogear.com
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