IOGear GUB231 User manual

GUB231/GUB431
PART NO. M1119-a/M1120-a
User Manual
2/4-port USB Peripheral Sharing Switch

Package Contents 4
Overview 5
System Requirements 6
Device Overview 7
Hardware Installation 9
Operation – Manual Switch 12
Operation – Automatic Switch Windows OS 13
Operation – Automatic Switch Mac OS X 20
Trouble-Shooting Guide 28
Specications 30
Federal Communications Commission (FCC)
Statement
32
CE Statements 33
Limited Warranty 34
Contact 35
3
Table of Contents

4
Package Contents
GUB231
1 x GUB231- 2-port USB 2.0 Peripheral Sharing Switch
1 x 6ft USB Type A to Type B Cable
1 x User Manual
1 x Warranty/Registration Card
GUB431
1 x GUB431-4-port USB 2.0 Peripheral Sharing Switch
1 x 6ft USB Type A to Type B Cable
1 x User Manual
1 x Warranty/Registration Card

5
Overview
• Enables two (GUB231) or four (GUB431) computers to share one USB peripheral device
• Automatically* switch from one computer to another when connecting to a USB printer or multi-function
printer
• Simply press a button to switch a USB device between computers - No software installation required
• Active-port LED indicators to show which computer has USB access
• Switch lock function to ensure data access consistency
• USB 2.0 support with data transfer rate up to 480Mbps and USB 1.1 backward compatible
• Eliminates cable clutter and no external power supply needed
*Automatic switch function requires installation of the included software. Please refer to page 18 for
Windows OS operation and page 26 for Mac OS operation.

6
System Requirements
Hardware Requirement
• Computer with a USB-A port
Supported Operating Systems
• Windows Windows 7/8.1/10
• Mac OS X 10.6 and above

1 2 3 4
5
7
Device Overview
GUB231
1. Sound effect on/off
2. Console port 2
3. USB device port
4. Console port 1
5. Port Selection button

1
23
10
4
5
6
7
8
9
8
GUB431
1. Port Selection button 4
2. Port Selection button 3
3. Port Selection button 2
4. Port Selection button 1
5. Console port 1
6. Console port 2
7. USB device port
8. Console port 3
9. Console port 4
10.Sound effect on/off

9
Hardware Installation
Note: Make sure that the power to any device that
you are connecting to is turned off.
1. Use the included USB cable and connect the
Type A connector to any available Type A port
on the GUB231 or GUB431, and connect the
other end of the cable to any available USB port
on your computer.
2. If you want to connect more than one computer
to GUB231 or GUB431, you will need to
purchase additional USB Type A to Type B
cables and repeat Step 1.

USB printer or
other USB device USB printer or
other USB device
10
3. Connect the USB Type A connector of the USB cable from your USB device to the Type A port on the
GUB231 or GUB431.
GUB231 GUB431

11
Lock
To lock the USB device connection with specic
computer, press and hold the port selection button
for two seconds, or until the orange LED lights up.
Unlock
To unlock the USB device connection with specic
computer, press and hold the port selection button
for one second, or until the orange LED turns off.

12
Operation – Manual Switch
Note: Software installation is not mandatory for
the USB 2.0 Peripheral Sharing Switch to function.
The device supports manual operation. Manual
operation and software-based operation operate
independently; commands from one will not
override the other.
For GUB231:
To switch the connection to the USB device
between the two computers, press the port
selection button located on the top center of
the Sharing Switch. The selected port LED will
ash and the Sharing Switch will beep. After four
seconds, the ashing will stop and the LED will
become steady, the port switch is completed
successfully.
For GUB431:
To switch the connection to the USB device
between the four computers, press the
corresponding port button located on the top of
the Sharing Switch. The selected port button LED
will ash and the Sharing Switch will beep. After
four seconds, the ashing will stop and the LED
will become steady, then port switch is completed
successfully.

13
Operation – Automatic Switch Windows OS
1. Please go to www.IOGEAR.com/support/dm/
driver/GUB231 and download the latest driver
2. Run the downloaded zip drive to begin loading
the software
3. Double click on Setup
4. The software will start loading, click on Next to
continue.

14
5. You can install the software into a specic folder
of your choice, or just use the default folder and
click on Next to continue.
6. Click on Install to continue.
7. Click on Finish to restart your computer when
the installation is completed.

15
Once software installation completes, you will nd the utility icon located on your desktop
This icon on your taskbar will display in four different colors to indicate different status of your GUB231/431,
below table is the denition on the various color.
Color Status
Green Locked on local computer
Yellow Connected to local computer
Red Peripheral device not connected
Gray Disconnected or busy

16
Lock / Unlock Connection
1. Click on the utility icon on the taskbar and a
menu will appear. If your computer is the one
that’s currently connecting to the USB device,
then you can choose to lock the connection by
selecting Lock Connection from the menu.
2. If you want to unlock the connection so other
computers can connect to the USB device, then
click on the utility icon on the taskbar of the
computer that’s currently connected to the USB
device, and select Unlock Connection.

17
Switch to Local Computer
Note: In order to switch the connection of the USB
device to another computer, you must unlock any
active connection to the USB device from the com-
puter that is currently connected to the USB device.
If you want to switch the connection of the USB
device from one computer to another, you can click
on the utility icon on the taskbar and select Switch
to Local Computer.
Cancel Switch Request
If you have sent a request to switch the connection
of the USB device and the USB device appears
to be busy, your request is queued. To cancel the
request, click on the utility icon on the taskbar and
select Cancel Switch Request.

18
Auto Printer Sharing
Note: In order for the auto printer sharing function
to work, you must unlock any connection that is
currently locked by manual or software operation.
Refer to P.12 for instructions on how to unlock
the connection by manual operation, and P.16 for
software operation.
1. Click on the utility icon located on the taskbar
and select Settings.
2. Check the box Print function only, and select
the correct printer from the drop-down menu.
Click OK when nished.
Note: If your printer does not show up on the drop-
down menu, try to reinstall your printer driver. If
your printer is a multifunction printer and you want
to use its scan function, you must also enable the
Other devices / applications and click on Add. For
detail information, please see Trouble-Shooting
Guide section of this user manual.

19
Other devices / applications
If you want to enable the auto switch function on
your scanner or the scanning function on your
multifunction printer, check the box for Other
devices / applications then click on Add. Then
you will need to browse through your computer’s
system les and nd the applicable application
program. Click on OK when nished.
Note: Be sure to search and select the full ap-
plication path. A desktop shortcut will not work.
Once a USB device and its application have been
associated with the Auto Switch function, the USB
2.0 Peripheral Sharing Switch will automatically take
control of the attached USB device when the utility
application is opened. USB 2.0 Peripheral Sharing
Switch will release the control when the utility ap-
plication is closed.

20
Operation – Automatic Switch Mac OS X
1. Please go to
www.IOGEAR.com/support/dm/driver/GUB231
and download the latest driver.
2. Run the downloaded zip drive to begin loading
the software.
3. You will see two installation package les in the
Mac folder. US221A_SETUP.mpkg is the setup
le for GUB231, and US421A_SETUP.mpkg is
the setup le for GUB431. Double click on the
one that is for the product you purchased.
4. Click on Continue to begin the installation.