IOGear Switch GCS1792 User Manual

Installation Guide  
2/4-Port HDMI Multimedia KVMP Switch with Audio  
GCS1792 / GCS1794  
PART NO. M1085 / M1086  
 
©2009 IOGEAR. All Rights Reserved. PKG-M1085 / M1086  
IOGEAR, the IOGEAR logo, MiniView®, VSE are trademarks or registered trademarks of IOGEAR, Inc. Microsoft and  
Windows are registered trademarks of Microsoft Corporation. IBM is a registered trademark of International Business  
Machines, Inc. Macintosh, G3/G4 and iMac are registered trademarks of Apple Computer, Inc. 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, Inc. assumes no responsibility for any inaccuracies or  
errors that may appear in this document.  
3
 
Package Contents  
1 x 2/4-Port HDMI KVMP Switch  
2/4 x HDMI KVM Cables (2 for GCS1792 / 4 for GCS1794)  
1 x USB to PS/2 Converter  
1 x Firmware Upgrade Cable  
1 x Power Adapter  
1 x Installation Guide  
1 x Warranty Card  
4
 
Requirements  
Console  
A display with an HDMI or DVI input*  
A USB Keyboard and Mouse  
Source Devices  
Source devices with HDMI or DVI outputs*  
USB port (if source supports keyboard, mouse or peripheral)  
Optional Analog Audio  
Analog audio connections for speakers and mic.  
*Note: To connect to a DVI computer or monitor, please use the GHDMIFDVIM adapter, available at  
5
 
Table of Contents  
GCS1792 Overview  
GCS1794 Overview  
Installation  
7
Hotkey Setting Mode (HSM)  
Mac Keyboard Emulation  
Factory Default Hotkeys Settings  
Firmware Upgrade  
22  
24  
26  
27  
32  
34  
9
12  
16  
17  
17  
LED Indication  
Port Switching  
Upgrade Fail  
Port Switching via Front Panel  
Pushbutton  
Federal Communications Commission  
(FCC) Statement  
Port Switching via Front Panel  
Pushbutton (Alternative Settings)  
18  
CE Statement  
Limited Warranty  
Contact  
36  
37  
38  
Port Switching via Hotkeys  
Auto Scanning  
19  
21  
6
 
GCS1792 Overview  
Front View  
1. Port 1 Pushbutton  
2. Port 2 Pushbutton  
3. Front Panel Console Mic. Port  
4. Front Panel Console Analog Audio Port  
5. Front Panel USB 2.0 Peripheral Sharing Port  
1
2
3
4
5
7
 
Rear View  
1. Firmware Upgrade Port  
2. DC Power Jack  
3. Console USB Mouse Port  
4. Console USB Keyboard Port  
5. USB 2.0 Peripheral Sharing Port  
6. Console Mic. Port  
9. CPU2 Mic. Port  
10. CPU2 Analog Audio Port  
11. CPU2 HDMI Video Port  
12. CPU2 USB Port  
13. CPU1 Mic. Port  
14. CPU1 Analog Audio Port  
15. CPU1 HDMI Video Port  
16. CPU1 USB Port  
7. Console HDMI Video Port  
8. Console Analog Audio Port  
1
2
3
4
5
6
7 8  
9
10 11  
12  
13 14 15  
16  
8
 
GCS1794 Overview  
Front View  
1. Port 1 Pushbutton  
2. Port 2 Pushbutton  
3. Port 3 Pushbutton  
4. Port 4 Pushbutton  
5. Front Panel Console Mic. Port  
6. Front Panel Console Analog Audio Port  
7. Front Panel USB 2.0 Peripheral Sharing Port  
1
2
3
4
5
6
7
9
 
Rear View  
1. Firmware Upgrade Port  
2. DC Power Jack  
3. Console USB Mouse Port  
4. Console USB Keyboard Port  
5. USB 2.0 Peripheral Sharing Port  
6. Console Mic. Port  
7. Console HDMI Video Port  
8. Console Analog Audio Port  
9. CPU4 Mic. Port  
13. CPU3 Mic. Port  
14. CPU3 Analog Audio Port  
15. CPU3 HDMI Video Port  
16. CPU3 USB Port  
17. CPU2 Mic. Port  
18. CPU2 Analog Audio Port  
19. CPU2 HDMI Video Port  
20. CPU2 USB Port  
21. CPU1 Mic. Port  
10. CPU4 Analog Audio Port  
11. CPU4 HDMI Video Port  
12. CPU4 USB Port  
22. CPU1 Analog Audio Port  
23. CPU1 HDMI Video Port  
24. CPU1 USB Port  
10  
 
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15  
16 17 18 19  
20 21 22 23  
24  
11  
 
Installation  
Step 1  
Please make sure your source devices and display are powered off before you start.  
Step 2  
Plug the power adapter into the power outlet and connect it to the DC power jack from the KVM.  
12  
 
Step 3  
Connect the HDMI cable from your display to the console HDMI port.  
*If your display has a DVI input instead of HDMI, please connect the HDMI (F) to DVI (M) Adapter  
(Model No: GHDMIFDVIM) between your HDMI cable and your DVI connection from your display.  
13  
 
Step 4  
Connect your USB keyboard and mouse to the console USB keyboard port and console USB  
mouse port.  
*If you are using PS/2 keyboard and mouse, please use the included PS/2 to USB converter. Simply connect the  
PS/2 keyboard and mouse to the PS/2 keyboard and mouse port from the converter, then connect the USB port  
to the console USB keyboard port.  
14  
 
Step 5  
Connect a set of your HDMI KVM cable from the multimedia KVMP switch to each of your source devices  
– HDMI cable to the HDMI output and USB cable to open USB port from your source device. Connect the  
optional analog audio and mic connectors to your source device and if your device does not pass audio  
through HDMI cable.  
*If your source device has a DVI output instead of HDMI, please connect the HDMI (F) to DVI (M) Adapter (Model  
No: GHDMIFDVIM) between your source device and your HDMI cable.  
**If your source device does not support USB keyboard, mouse or peripheral, simply leave the USB connection  
unconnected.  
Final Step  
Turn on your source devices.  
15  
 
LED Indication  
LED  
Description  
Online / Selected*  
Online / Selected*  
USB Link  
Dim Orange  
A device is connected to the KVMP  
switch but the port is not on focus  
Bright Orange  
Green  
The specific port has focus on the KVM  
(Keyboard, video and mouse)  
The specific port has focus on the USB  
peripheral sharing ports  
*Note: Online status is detected by the USB connection from the KVM cable; therefore, if your source device does  
not support USB, the KVM will not have online status light up as dim orange. When that source is selected, the  
LED will light up as dim orange instead of bright orange.  
16  
 
Port Switching  
Simply press the front panel Pushbutton from the multimedia KVMP switch or trigger hotkeys from your  
keyboard.  
Port Switching via Front Panel Pushbutton  
Function  
Description  
Switch all focus (KVM, analog audio and USB) to  
a specific port  
Press and hold the correspond push button for 2  
seconds for the desire port that you wish to switch  
focus to.  
Switch KVM focus to a specific port  
Switch analog audio focus to a specific port  
Switch USB focus to a specific port  
Press the correspond push button once for the  
desire port that you wish to switch focus to.  
Press the correspond push button twice for the  
desire port that you wish to switch focus to.  
Press the correspond push button 3 times for the  
desire port that you wish to switch focus to.  
17  
 
Port Switching via Front Panel Pushbutton (Alternative Settings)*  
Function  
Description  
Switch all focus (KVM, analog audio and USB) to  
a specific port  
Press the correspond push button once for the  
desire port that you wish to switch focus to.  
Switch KVM focus to a specific port  
Press and hold the correspond push button for 2  
seconds for the desire port that you wish to switch  
focus to.  
Switch analog audio focus to a specific port  
Switch USB focus to a specific port  
Press the correspond push button twice for the  
desire port that you wish to switch focus to.  
Press the correspond push button 3 times for the  
desire port that you wish to switch focus to.  
*Note: Please see page 23 about how to change the front panel pushbutton to the alternative settings.  
18  
 
Port Switching via Hotkeys  
Port Switching via Hotkeys  
Hotkeys  
Description  
[Scroll Lock] [Scroll Lock] [Enter]  
Switch all focus (KVM, analog audio and USB) to  
the next port  
[Scroll Lock] [Scroll Lock] [n] [Enter]  
Switch all focus (KVM, analog audio and USB) to  
port n*  
[Scroll Lock] [Scroll Lock] [k] [Enter]  
[Scroll Lock] [Scroll Lock] [n] [k] [Enter]  
[Scroll Lock] [Scroll Lock] [s] [Enter]  
[Scroll Lock] [Scroll Lock] [n] [s] [Enter]  
[Scroll Lock] [Scroll Lock] [u] [Enter]  
[Scroll Lock] [Scroll Lock] [n] [u] [Enter]  
Switch KVM focus to the next port  
Switch KVM focus to port n*  
Switch analog audio focus to the next port**  
Switch analog audio focus to port n* **  
Switch USB focus to the next port  
Switch USB focus to port n*  
19  
 
Port Switching via Hotkeys  
[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 KVM and USB focus to port n*  
Switch KVM and analog audio focus to port n* **  
Switch USB and analog audio focus to port n*  
*Note: n is an interval that stands for the Port number  
k stands for KVM focus  
s stands for analog audio focus  
u stands for USB focus  
**Note: If the audio is going though the HDMI cable along with the video signal, this hotkey WILL NOT switch the  
audio focus. But instead, the audio will follow the KVM focus.  
20  
 
Auto Scanning  
You can either activate Autoscan Mode via front panel push button or hotkeys.  
Function  
Description  
Front Panel Push Button  
Press and hold port 1 and port  
2 Pushbutton simultaneously for  
2 seconds to activate Autoscan  
Mode*  
Activate Autoscan mode. It will  
cycle from port to port every 5  
seconds (default)  
Hotkeys  
Hotkeys  
[Scroll Lock] [Scroll Lock] [a]  
[Enter]  
Activate Autoscan mode. It will  
cycle from port to port every 5  
seconds (default)  
[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) desire for scanning each port.  
21  
 
Hotkey Setting Mode (HSM)  
Hotkey  
Description  
1. Press and hold [Num Lock] ([Clear] key on  
Mac keyboard)  
2. Press and release [-]  
Invoking hotkey setting mode  
3. Release [Num Lock] ([Clear] key on Mac  
keyboard)  
Invoke HSM, then press [h]  
Change the HSM invocation keys from [Num Lock]  
to [Ctrl] and from [-] to [F12]  
Invoke HSM, then press [t]  
Switch port switching hotkey sequence between  
[Scroll Lock] [Scroll Lock] and [Ctrl] [Ctrl]  
Invoke HSM, then press [F2]  
Invoke HSM, then press [F10]  
Enables Mac keyboard emulation  
Auto-detect the keyboard operating platform (for  
PC compatible systems). Activates Pass Through  
Keyboard Mode (keystrokes are sent directly to the  
computer instead of through the Mac emulator).  
Invoke HSM, then press [F4]  
List hotkey settings – simply invoke the hotkey and  
then open a text editor, such as notepad, and use  
the Paste function to display the hotkey settings.  
22  
 
Invoke HSM, then press [F5]  
Invoke HSM, then press [b]  
Invoke HSM, then press [x] [Enter]  
USB Reset  
Toggle hotkey beepers on or off  
Disable or enable port switching hotkey  
Invoke HSM, then press [u] [p] [g] [r] [a] [d] [e]  
[Enter]  
Activate Firmware Upgrade Mode – Front panel KVM  
LED will flash indicating Firmware Upgrade Mode is  
activated.  
Invoke HSM, then press [r] [Enter]  
Invoke HSM, then press [d]  
Invoke HSM, then press [s]  
Restore default settings  
Enable or disable video emulation  
Toggles between default and alternative front panel  
pushbutton operation settings. See page 18 for  
details.  
Invoke HSM, then press [m]  
Invoke HSM, then press [F1]  
Enable or disable mouse emulation  
Reset keyboard and mouse under some special OS’  
that do not support USB 2.0  
*Note: To exit HSM manually, press Esc or spacebar.  
23  
 
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  
[Shift]  
Mac Keyboard  
Shift  
Ctrl  
[Crtl]  
[Ctrl] [1]  
[Ctrl] [2]  
[Ctrl] [3]  
[Ctrl] [4]  
24  
 
[Alt]  
Alt  
[Print Screen]  
[Scroll Lock]  
F13  
F14  
=
[Enter]  
Return  
Delete  
Help  
[Backspace]  
[Insert]  
[Ctrl]  
F15  
*Note: When using key combinations, press and release the first key (Ctrl), then press and release the second key.  
25  
 
Factory Default Hotkeys Settings  
Function  
Default  
Port Switching  
[Scroll Lock] [Scroll Lock]  
[Num Lock] [-]  
5 Seconds  
On  
Invoking HSM  
Auto Scan Interval  
Beeper  
Keyboard Operating Platform  
Port Switching Keys  
Mouse Emulation  
PC Compatible  
Enabled  
On  
26  
 
Firmware Upgrade  
Note: In order to perform a firmware upgrade, you need to use a computer thats not connected to the KVM.  
Step 1  
Connect the provided firmware upgrade cable to the firmware upgrade port of the KVM and the serial port  
of your computer. Connect power adapter to your power outlet and the KVM.  
Step 2  
upgrade to.  
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.)  
Step 4  
Extract the file with WinRAR or compatible software. Then double click on the execute file to begin with  
the Firmware Upgrade Utility.  
27  
 
Step 5  
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  
No the KVM will reset by itself and it will be ready  
for usage after the rest.  
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 the DC connector from the KVM, then  
remove the housing of the KVM.  
GCS1792  
Step 2  
Using a jumper cap, short the jumper on the main  
board labeled J11 (for GCS1792) / J17  
(for GCS1794).  
GCS1794  
32  
 
Step 3  
Now plug the DC connector back into the DC jack from the KVM. This will restore the KVM with factory  
default firmware.  
Step 4  
Perform the firmware upgrade again.  
Step 5  
When the firmware upgrade is completed, unplug the DC connector from the KVM. Then remove the  
jumper from J11 (for GCS1792) / J17 (for GCS1794) and put the housing back together.  
Final Step  
Plug DC connector back into the KVM, then the KVM will be ready for usage again.  
33  
 
Federal Communications Commission (FCC) Statement  
15.21  
You are cautioned that changes or modifications not expressly approved by the part responsible for  
compliance could void the users authority to operate the equipment.  
15.105(b)  
his 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 installation. This equipment generates, uses and can radiate radio frequency  
energy and, if not installed and used in accordance with the instructions, may cause harmful interference  
to radio communications. However, there is no guarantee that interference will not occur in a particular  
installation. If this equipment does cause harmful interference to radio or television reception, which can  
be determined by turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
-
-
-
-
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
34  
 
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOL-  
LOWING TWO CONDITIONS:  
1. this device may not cause interference and  
2. this device must accept any interference, including interference that may cause undesired operation  
of the device.  
FCC RF Radiation Exposure Statement:  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.  
End users must follow the specific operating instructions for satisfying RF exposure compliance. This  
transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.  
35  
 
CE Statement  
This device has been tested and found to comply with the requirements set up in the council directive on  
the approximation of the law of member states relating to EMC Directive 89/336/EEC, Low Voltage  
Directive 73/23/EEC and R&TTE Directive 99/5/EC.  
The product has been approved for LVD and covered the following countries:  
Belgium, Denmark, France, Germany, Italy, Portugal, U.K., Spain, Sweden  
36  
 
Limited Warranty  
IN NO EVENT SHALL THE DIRECT VENDOR’S LIABILITY FOR DIRECT, INDIRECT, SPECIAL,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT,  
DISK, OR ITS DOCUMENTATION EXCEED THE PRICE PAID FOR THE PRODUCT.  
The direct vendor makes no warranty or representation, expressed, implied, or statutory with respect to  
the contents or use of this documentation, and especially disclaims its quality, performance,  
merchantability, or fitness for any particular purpose.The direct vendor also reserves the right to revise  
or update the device or documentation without obligation to notify any individual or entity of such  
revisions, or updates. For further inquiries please contact IOGEAR.  
37  
 
Contact  
IOGEAR  
23 Hubble  
Irvine, CA 92618  
P 949.453.8782  
F 949.453.8785  
38  
 
39  
 
About Us  
FUN  
IOGEAR offers connectivity solutions that are innovative, fun, and stylish,  
helping people enjoy daily life using our high technology products.  
GREEN  
IOGEAR is an environmentally conscious company that emphasizes the  
importance of conserving natural resources. The use of our technology solutions  
helps reduce electronic waste.  
HEALTH  
IOGEAR supports healthy and fit lifestyles. By integrating products with  
the latest scientific developments, IOGEARs solutions enhance the life of  
end-users.  
®
© 2009 IOGEAR  
 

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