Wireless Presentation Solution
For Apple Macintosh Computers
IEEE 802.11g
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Version 2.3
WiJET Technical Manual
Version 2.3
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Table of Contents
INTRODUCTION .......................................................................................4
OTC WiJET Wireless Presentation Solution...........................................4
Key Features ..........................................................................................5
1. INSTALLATION ....................................................................................6
Basic Setup Steps.....................................................................6
Hardware Installation ................................................................6
Presentation Software Installation.............................................7
2. USING THE WIJET.GMAC ...................................................................8
Establishing a Wireless Connection to the WiJET.Gmac ..........8
Using the WiJET.Gmac Presentation Manager.........................9
3. NETWORK DEPLOYMENT ................................................................11
WiJETs supported wireless radio modes: ...............................11
WiJET Networking Basics .......................................................12
Network Configuration.............................................................12
4. WEB-BASED ADMINISTRATION ......................................................14
WiJET Configuration and Setup ..............................................14
Administration .........................................................................17
Adjusting the Screen Refresh Rate .........................................21
Custom Banners Display Images ............................................22
5. TECHNICAL REFERENCE.................................................................23
Status Indicators .....................................................................23
Specifications ..........................................................................25
Resetting to Factory Defaults ..................................................26
APPENDIX ..............................................................................................27
Troubleshooting Guidelines ..................................................................27
Limited Warranty...................................................................................28
Regulatory Compliance ........................................................................29
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I ntr oducti on
OTC WiJET Wireless Presentation Solution
The WiJET.Gmac 802.11g Wireless Presentation
Solution allows unprecedented freedom and
versatility in setting up presentations. It can be
used to facilitate presentations in many different
Meetings and Conferences
In Classrooms and Training Facilities
In Churches and by Community Groups
As visual aid enablers in Museums and
At Tradeshows and County Fairs
To display marketing information in retail
Small and mobile, it can be easily carried and
deployed in many different scenarios or
alternatively they can be integrated into existing
WLAN/LAN Networks to enable unprecedented
freedom in presentation options.
Note: Throughout this manual, the terms WiJET
and WiJET.Gmac are used interchangeably.
Screenshots of the MAC PSM are included
for illustrative purposes only and may differ
from the production version of the MAC
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Key Features
Interoperable with any Apple Mac OS X, equipped
with an industry standard IEEE 802.11g/b-compliant
wireless adapter. Simple user interface with the
supplied application software PSM for making
Plug & Play o
Access Point mode for easy wireless
connection from any Mac
Infrastructure Station mode to join an
wireless network for Mac to surf Internet
Automatic search for the clearest channel
and avoiding duplicate SSID
No need to change IP address settings of the
wireless card in a user’s Mac
Supports DHCP, auto-IP and fixed IP modes.
Maximum 54 Mbps data rate with automatic fall back
to maintain optimal link connection
Support of up to 1024x768 resolution for optimized
image quality versus performance
Robust maintenance of presentation session in case
of brief breakage of wireless link
User customizable banner images allow for the
display of information such as meeting agenda,
conference logo, etc. before and between
Web browser based administration application for
setting wireless parameters and upgrading
Standard VGA connector allows for use with any
presentation monitor/projector
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Automatically detects and lists available WiJETs in
the Network
Up to 6 WiJET units may be selected based on
their actual IP addresses to receive the same Mac
screen images.
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1. Installation
Basic Setup Steps
The basic steps to setting up a WiJET.Gmac are to:
1. Unpack the unit and its accessories.
2. Attach the antenna to the WiJET.Gmac.
3. Connect the WiJET.Gmac to either a projector or monitor.
4. Power-Up the WiJET.Gmac.
5. Install the PSM software (or run it directly from the CD).
6. Configure the wireless card to connect with the WiJET.Gmac.
7. Establish a session with the WiJET.Gmac using the PSM and make
Figure 1. WiJET.Gmac rear panel connections
Hardware Installation
1.1.1 Safety
Use only the power adapter provided with this product or the manufacturer's authorized replacement power supply.
Connect the power adapter to a properly grounded electrical outlet that is near the product and easily accessible.
Refer service or repairs, other than those described in the Technical Manual to OTC Wireless, Inc or an authorized dealer.
1.1.2 Power
1.1.3 VGA Connection
Power is supplied to the WiJET.Gmacs via a 5 Volt DC power
The WiJETs uses a standard 15 pin female VGA connector to
connect the unit to either a monitor or a projector. Use a straight-thru
monitor cable (this is usually supplied with a projector or monitor, but
can also be purchased separately).
Use only the power supply adapter provided with this product or the
manufacturer’s authorized replacement power supply
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1.1.4 The Banner Display
Once everything is connected, power-up the WiJET and after it boots
up, it will display the default Banner Display page.
Presentation Software Installation
The Presentation Session Manager (PSM) software is supplied on
the distribution CD packaged with the WiJET.Gmac.
1.2.1 System Requirements for User Software
To run the WiJET presentation software, the computer must meet
the following minimum requirements:
Figure 2. WiJET.Gmac Banner Display Screens
System Status message area
[This area can optionally be hidden]
A banner page graphic
[This can be customized to show different images]
The System Status will show information that is required for the Mac
to successfully connect wirelessly to the unit. There are three lines.
On the right end of this line, a colored square is shown. It will be in
one of two colors (green or yellow). A detailed description on the
Banner Display messages can be found in section 5.1.2 WiJET
Banner Display Screen System Status Indicators of the manual.
Wi-Fi or IEEE 802.11g enabled computer (either built-in
or add-on NIC);
Apple Mac OS X
600 MHz CPU or equivalent and 128MB RAM.
Optionally, a WiFi or IEEE 802.11g compliant Access
Point (AP), for WiJET.Gmacs set to operate in
infrastructure station mode.
1.2.2 Installation of the WiJET.Gmac
Presentation Session Manager (PSM)
Insert the software CD into the computer’s CD-Rom drive.
To “install” the WiJET.Gmac software on the Mac, simply “drag” the
executable on the CD to the Mac.
Alternatively, the PSM can be run directly from the CD-Rom drive.
Figure 3 Banner Display System Status indicators
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2. Using the W iJET.Gmac
Establishing a Wireless Connection to the WiJET.Gmac
On the Mac OS X, click on the wireless network icon menu on the
desktop and select the WiJET’s SSID to establish a wireless
connection (See Figure 4).
The WiJET’s SSID is displayed at the top left corner of the banner
page (refer to section 5.1.2).
The WiJET.Gmac is configured as an Access Point by
default for easy wireless connection with the computer. It
can also be configured as an infrastructure station for
connecting to the computer through an Access Point. Please
refer to section 3 for details for networked WiJET
Figure 4. Connecting wirelessly to the WiJET using Airport
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Using the WiJET.Gmac Presentation Manager
2.2.1 Starting Presentation Session Manager (PSM)
If the WiJET PSM software is installed on the local hard drive, launch
it by double-clicking on the PSM application icon; the main dialog
panel will appear (Figure 5).
Before starting the PSM, the hosting computer must have a
valid IP address. For computers that normally have their IP
addresses assigned by a DHCP server, when the DHCP is
unavailable, it may take a few minutes for the computers to
default to an OS assigned IP address.
There are several action buttons on the PSM dialog panel. The
functions of these action buttons are as follows (and further
explained in the next sections):
Search for WiJET
- Detect available WiJETs
Establish a Session
- Start Screen Replication Operation
Release the Session
- End Screen Replication Operation
- Quit the PSM program.
Figure 5. WiJET.Gmac PSM Main Dialog
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2.2.2 Starting or Resuming a Presentation Session
When the PSM starts, it will automatically search for available
WiJETs in the vicinity and displays their names and IP addresses in
a list as shown in Figure 5. Select the WiJET(s) from the list by
highlighting their names and use the “Establish a Session” button to
establish a connection. Multiple WiJETs can be selected (by using
shift-click) to connect to a computer simultaneously .
Once a session is established, there will be a status message in the
PSM window confirming that a session is connected. The projector
or monitor will display the replicated MAC desktop.
Clicking the “Search for WiJET” button will refresh the list of available
WiJETs. The WiJETs currently in session will not appear on this list.
2.2.3 Releasing the Presentation Session
Use the “Release the Session” button to disconnect from the
WiJETs. The wireless link will stay on even after ending a session.
This allows presenters to quickly start new sessions as necessary.
The WiJET.Gmac will display the banner display page when there is
no active session in progress.
2.2.4 Exit the Presentation Session Manager
Clicking the “Exit” button on the PSM will terminate the PSM.
Refer to 3.3.2
Using Network integrated WiJETs for details.
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3. Networ k Deployment
WiJETs supported wireless radio modes:
3.1.1 Understanding WiJET Connections
3.1.2 Local Access Point:
Using a WiJET is a two-step process
A WiJET, taken straight “out-of-the-box” by default is set to operate
as a "Local Access Point". This can be seen on the Banner Display
screen after the unit first boots up. This mode allows users to easily
connect with a WiJET with minimal technical expertise. Any
computer can use the WiJET as long as they can wirelessly connect
with it. The web-based administration tool can be used to select or
deselect this radio operation mode.
Connecting wirelessly to a WiJET – this is analogous to
connecting a wire to the WiJET from a computer.
Establishing a session – this actually allows user to make
presentations using a WiJET.
Note that multiple computers can be connected to a single WiJET
wirelessly at the same time. Only one computer can establish a
session with an individual WiJET at any one time. However, it is
possible for a single computer to establish sessions with up to six
different WiJETs at the same time.
3.1.3 Infrastructure Station:
This mode allows a WiJET to become integrated into an existing
wireless Network. Theoretically, any computer on the Network will be
able to access the WiJET while maintaining all existing Network
connections (including Internet connections). The web-based
administration tool is used to select or deselect this radio operation
mode and set Network parameters.
Figure 6 WiJET operating in Local Access Point Mode
Figure 7 WiJETs operating in Infrastructure Station Mode as Network devices
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WiJET Networking Basics
WiJETs when set to operate in infrastructure station mode can be
deployed within a Network structure. This can offer advantages to
users that standalone units cannot. Networks vary widely in
configuration and type; however, the following benefits should be
achievable on most Networks:
Access to the Internet/Intranet – web pages can be
displayed on WiJET enabled projectors and monitors
Access to normal Network resources – presentation files and
other resources can be stored anywhere on the Network
Any MAC that has access to the Network will have access to
the WiJETs and be able to make presentations on a Network
integrated WiJET.
o The presenting computer does not even need a
WiFi adapter as long as it can route data
through a Network AP.
o The presenting computer must run the PSM
locally – this does not have to be permanently
installed. Users have the option of running the
WiJET PSM directly from the CD-ROM drive.
A single MAC can access up to 6 WiJETs through Network
APs (802.11g standard recommended) and make
simultaneous presentations.
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Network Configuration
Integrating WiJETs into an existing WLAN/LAN is a relatively
straightforward exercise. Deployment will include the following steps
(if detailed instructions are needed please refer to the WiJET
Network Guide towards the end of this manual):
Assign the WiJETs static IP addresses.
Assign the WiJETs a descriptive name (recommended).
Assign the WiJETs to a Network AP through a proper SSID
Enable each WiJET with any necessary Network security
Upload a custom banner display page with the appropriate
organization logo (optional).
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3.3.1 Accessing a Network WiJET
Log into the Network.
Start the PSM.
If the Network only has one WiJET it will be accessed
directly when a session is established.
If there are multiple WiJETs on the same subnet the will list
all WiJETs not current in session.
Users can also select either all-available WiJETs or can
choose specific multiple units by holding the shift key when
selecting units.
3.3.2 Using Network integrated WiJETs
Standard usage is identical to standalone WiJETs operating in Local
Access Point mode. Only the differences will be mentioned here.
Accessing the Internet and Network Content
Once a session is established, Network and Internet/Intranet content
can be displayed on the WiJET enabled display device.
Simultaneous Multiple Displays
Selecting multiple available WiJETs in the Connection List will allow
a session to be established between a MAC and multiple WiJETs.
Up to six WiJET units can be connected to in this manner and the
resultant displays will be simultaneous.
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4. Web-Based Administration
WiJET Configuration and Setup
The WiJET provides a Web-based administration application for
configuration of the operating modes and parameters of the unit.
This application allows users to customize the banner page, set up
wireless security, and integrate the WiJET with the LAN as well as to
upgrade the WiJET’s firmware.
4.1.1 System Requirements
A web-browser with JavaScript enabled.
IEEE 802.11b/g or Wi-Fi enabled computer (either built-in
or add-on NIC).
Do not power off or disconnect the WiJET while
modifying its settings. Doing so may irreversibly
corrupt the internal firmware of the WiJET.
4.1.2 Accessing the Web-based Administration Tool
To access the web-based administration tool, the user should install
PSM as described in section 1.2.2.
Figure 8. Accessing the Administration Tool
To use WiJET Administration Manager, the users must have an
IEEE 802.11b/g wireless network and the WiJET PSM running on
their Macintosh computer. Once a session has been established, the
user will be able to access the “Configure WiJET” menu item under
“Action.” See the screen image in Figure 8.
This menu item brings up the default web browser on the Macintosh
computer and automatically connects with the administrative Web
page of the WiJET. This site requires that the correct user name and
password to be entered before it can be accessed:
Default user name:
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Default Password: public
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As an Infrastructure Station, the unit must use an SSID in
use on the local network in order to join an existing Wireless
As an Access Point, the WiJET’s SSID is used to connect
other wireless adapters to it.
4.2.1 Configuration Settings:
Radio Mode: The WiJET supports two radio modes: Access Point
and Infrastructure Station. By default, WiJET operates as an Access
Point. For integration with an existing network the WiJET must be in
Infrastructure Station mode.
Operation Mode: When the WiJET is set as an Access Point, the
operation mode can be either Automatic or Manual. The default
mode is Automatic.
Default Channel: Under Automatic mode, this will be the channel
utilized in an interference-free environment. Under manual mode,
this unit will operate only on the specified channel. This setting has
no effect when the unit is in infrastructure mode - the WiJET will
default to the same channel used by the Access Point used to
connect with it.
Under Automatic mode, the WiJET will automatically select an
unused SSID and the clearest channel upon boot up. The SSID will
be based on the name entered by the user in the SSID field. If the
assigned SSID is detected as being already in use by another
Access Point, the WiJET will automatically append the name with a
number between 01 and 09.
Output power: Lower the output power level to decrease the radio
coverage area. Decreasing output power may help to avoid
interference when many units are deployed in a small area.
Under Manual mode, the WiJET will use the SSID and channel
designated by the user.
When a unit is configured as an
Infrastructure Station, only the Manual operation mode is allowed.
Reset to Factory Default: This button resets all operating parameters
to WiJET factory default values. Use this feature with caution. Note
that once reset, previously connected computers may no longer be
able to connect with the unit. The computers’ settings may also have
to be changed in order to reconnect.
SSID / Network Name: The text field for entering SSID. This can be
up to 30 characters long. The value of this field depends on the
operating mode of the unit:
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Authentication Type: Under the Open System, the wireless
association authenticating process does not check the encryption
key and allows any Wi-Fi radio to connect to the unit. When “Shared
Key” is enabled, the encryption key is checked during the first
authentication process and only the Wi-Fi radios with the correct
encryption keys can connect to the unit.
Transmission key selection: One of the four WEP keys needs to be
selected for transmitting data frames. The radio can de-encrypt
received data encrypted in any one of the four entered keys, but it
uses only one of the keys for transmitting its data.
WEP enabled: This check box allows users to enable or disable the
WEP encryption feature. The product currently supports the default
(shared) 64-bit and 128-bit WEP key scheme as defined in the
802.11 standard. A set of four keys needs to be entered in the
default-key scheme.
WEP key length: The 64-bit encryption is currently the 802.11
standard. The 128-bit encryption is supported by equipment from a
limited number of vendors. Note that the “user-controlled” portion of
the 64-bit encryption is just 40 bits (10 Hex digits) and that for the
128-bit encryption is just 104 bits (26 Hex digits)—3-bytes of the
encryption key are internal to the encryption algorithm.
WEP Keys: A set of four keys needs to be created when WEP is
Figure 9 Administration tool CONFIGURATION tab
Apply Settings: Click “Apply” to save any changes made. Click
“Cancel” to abort all changes.
Save changes before changing tabs –
modifications are not saved when flipping tabs.
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Radio MAC Address: Shows the unit’s MAC address. (This value
cannot be changed).
Banner Information Enabled: This is normally checked and when the
Banner Display page is shown, status information on the WiJET and
the wireless link is visible at the top of the screen. Users may
uncheck this box and hide this information. This is usually done for
security reasons or just to clean up the display when using custom
JPEG files for the Banner Display. (The same information is always
listed in the “Current connectivity information” section).
IP Addressing Mode:
4.3.2 User Account Settings:
4.3.1 Network Settings:
Device Name: Change the unit’s name to a unique identity.
Automatic-DHCP mode: The WiJET will check for the
presence of a DHCP server during boot up. If none is
available, a default IP address will be assigned to the unit.
User Name: Allows the default user name “Admin” to be changed.
(16 characters max.).
Manual-Static mode: allows the WiJET to be assigned a
fixed IP address.
Enter New Password: Allows the default password “public” to be
changed. (16 characters max.).
(See also: Notes about the WiJET’s Auto-IP feature)
Confirm New Password: Retype the new password for confirmation.
IP Address: In Automatic-DHCP mode, this value will be the default
IP address if no DHCP server is found. In Manual-Static mode, this
value will be the unit’s fixed IP address.
Subnet Mask: In Automatic-DHCP mode, this value will be the
default subnet mask if no DHCP server is found. In Manual-Static
mode, this value will be the unit’s fixed subnet mask.
Default Gateway: In Automatic-DHCP mode, this value will be the
default gateway if no DHCP server is found. In Manual-Static mode,
this value will be the unit’s fixed default gateway.
Reboot WiJET: This will reboot the unit. It takes effect immediately
and will not apply any other changes to the values on this page. If
other changes have been made on this page, first click “Apply” in
order for them to take effect.
Apply Settings: Click “Apply” to save any changes made. Click
“Cancel” to abort all changes.
Save changes before changing tabs –
modifications are not saved when flipping tabs.
Note that in this section that there are separate
“Apply” / “Save” controls. These pertain
specifically to the fields in that section.
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Notes about the WiJET’s Auto-IP feature:
WiJETs have a built in feature called “Auto-IP”. This is designed to
make the establishment of sessions easier for non-technical users.
The Auto-IP feature has several characteristics that Network
Technicians should be aware of:
Figure 10 The ADMINISTRATION tab
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The PSM has the capability of assigning a new Network IP
address from the same subnet as the computer running the
PSM at the time that a session is established.
The PSM assigned IP address is displayed on the Banner
Display screen when the WiJET is not in session.
The WiJET will keep its newly acquired IP address unless
rebooted or assigned a new one during the course of a new
PSM session.
There is a procedure in place to prevent the PSM assigning
the WiJET a duplicate IP address in the same subnet.
Note that due to this feature, a WiJET can be assigned a
different IP address each time a session is established.
Although it is possible to assign a fixed IP address to the
WiJET (which is recommended for all Network integrated
WiJETs), the Auto-IP function can cause a WiJET to take on
any unassigned IP address within the same subnet as the
PSM that is available – including those that may have been
reserved for other functions.
A Network with a correctly deployed IP addressing strategy
should never have problems with this feature. In case of
problems, power-cycling a WiJET will cause it to default back
to its originally assigned fixed IP address (or one of the
factory defaults).
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In order to use all the features supported by the web based
Administration tool, it may be necessary to manually configure
Internet Explorer:
4.4.1 Upload Firmware
Uploads new firmware to the device.
Use only official firmware upgrades or patches from
OTC Wireless, Inc.
Once configured, the Administration tool will be able to automatically
monitor the available memory available on the WiJET.
4.4.2 Upload Banners
Upload a collection of banner pages. Each banner page is a JPEG
(.jpg) file. Each JPEG will be displayed for a specified duration in
terms of seconds and in the order specified. Modify the collection by
changing the values of the duration and order, or even permanently
delete unwanted banners by selecting the “Delete” checkbox.
Banner graphics must be in the JPG format.
For best results the picture should have a maximum resolution of
800x600 and 72 dpi. The maximum size for each JPG is 2
megabytes. See the section 4.7 Custom Banners Display Images on
page 22 for more information on using the custom banner features.
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1. Go to Internet options, on the “Security” tab, add the
WiJET’s IP address to the Trusted Sites or Local Intranet list.
2. Click “Custom Level …” to enable ActiveX controls.
When uploading firmware or banner graphics, DO NOT power
off or disconnect the WiJET. Doing so can irreversibly corrupt
the internal firmware.
Space available: Shows the currently available space for uploading
banner pages.
Current banners: Shows the collection of banner pages in the
currently on the unit. Select the “Delete” option to remove an image.
Add new banners: Upload a batch of banner pages at one time to the
unit. Modify “Duration” fields to specify display time for each
uploaded image. The minimum allowed value is 5 seconds. A
duration value of 0 will skip the image. A duration value of -1 will
display an image indefinitely. Arrange the “Order” fields in the
desired image display sequence.
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The “Help” tab contains information regarding the product and technical
support. It also shows the firmware version. It is important to note the
firmware version before contacting technical support.
Figure 12 The HELP tab
Figure 11 The ADMINISTRATION tab
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Adjusting the Screen Refresh Rate
Most monitors and projectors will work automatically with the
WiJET’s default screen refresh rate settings. Some, however, may
need adjustments before the entire screen can be seen. This is
achieved by matching the correct screen refresh rates and by
making manual adjustments on the display device.
See if the problem exists in both 800x600 and 1024x768
screen modes. Usually, only one mode is affected. You will
only need to adjust for the mode that is affected.
To access the WiJET’s screen refresh rate settings, establish a
session with the WiJET and enter the following URL address into
your web browser:
http:// [ the WiJET’s current IP address ] /refresh.cgi
Figure 13 The WiJET's Screen Refresh Rate web page
Follow these steps to adjust the
screen refresh rate (please note that
you may have to experiment to
obtain the desired results):
User settings of the refresh
rate are not changed when
the WiJET is set back to it’s
factory defaults.
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1. Establish a session with the WiJET.
2. Bring up the WiJET Screen Refresh Rate screen with your web-browser.
3. Enter your display unit’s screen refresh rate value. This should be in your display device’s
technical documentation. If the drop down box does not have the exact value, choose the
closest value.
4. Click “APPLY”.
5. RELEASE the session.
6. Wait at least 5 seconds.
7. Establish a new session with the WiJET.
8. The results of the new screen refresh rate settings can now be seen. If this is an
improvement, proceed with the next step; otherwise try another refresh rate value.
9. Make manual adjustments if necessary using the display devices own display controls.
10. If the resultant display is not to your satisfaction, repeat the steps and use the next closest
refresh rate value.
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Custom Banners Display Images
It is possible to replace the default Banner Display graphic. This
allows the WiJET to display company or organization logos when the
unit is not in session. The WiJET can store up to 200 JPG images
(depending on the actual file sizes of the images ), and by default,
each image will be cycled every 10 seconds. Use this feature to
allow the WiJET to display POP/marketing, company or
organizational information when it is not in session.
Uploading the image
This feature actually allows users to preload images, connect the
WiJET to a display device and just let it run a show even without a
wireless or computer connection. In addition, it is possible to hide the
system messages that are usually displayed on the Banner Display
page. This is done by un-checking the Banner Information Enabled:
check box under the 4.3 Administration tab.
4.7.1 Preparing the image
Images are uploaded using the Upload section of the Web-based
Administration Tool:
Uploaded images must be no larger than 800x600 pixels
and ideally 72 dpi (dots per inch). Note that the default
image is smaller than 800x600. A standard 800x600
image will fill the entire display screen.
The individual picture file size cannot be larger than
Pictures must be in the JPG format (use the .jpg format
and not the .jpeg format).
The uploaded image can come from almost any source. Computer
desktop backgrounds make ideal candidates and thousands are
available for free from the Internet. If using pictures from a digital
camera, in general, these pictures must be preprocessed in a photoediting program to match the criteria listed above.
4.7.2 Displaying the images
Use the Browse button to select images to load.
File is auto-populated when an image is selected but can
be changed for images stored on the WiJET (only).
Duration is the length of time in seconds that an image is
displayed. (Setting this value to –1 will show an image
Order is used to set the sequence of the display.
Playable – this is an indicator only that the image is
“playable” (i.e. will be displayed).
Delete – used to remove unwanted images from the
WiJET’s memory (including the default banner image).
Upload and Apply Changes – select to upload images.
The WiJET will reboot after this button is clicked.
Once the images are uploaded, the images will be automatically
displayed when the WiJET is not in session. If there is more than one
image, the WiJET will cycle the images in rotation.
The WiJET.Gmac has 970 KB of available memory for image
WiJET Technical Manual
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5. Technical Reference
Status Indicators
5.1.1 LED Status Indicators
There are two status LED’s on the WiJET.Gmac:
WiJET Technical Manual
Power status indicator
(Green) Steady
This should always be on when the WiJET unit is powered.
Link status indicator
During boot-up, this LED is unlit.
(Amber) Blinking
Unit is available for a wireless connection
(Green) Steady
Unit is currently connected
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5.1.2 WiJET Banner Display Screen System Status Indicators
The unit’s Service Set IDentifier – this can be customized.
A default SSID is assigned to the WiJETs and this can be seen on the Banner Display screen.
This is the unit’s firmware version.
This is the unit’s (current) operating channel.
Channel 1-11 (US) / Channel 1-13 (International)
The WiJET can be set to operate in one of two radio modes:
Local Access Point (default) / Infrastructure Station
The WiJET’s IP Address. The factory default is
The WiJET’s unique MAC address.
RF activities
RF activities detected on other channels (none).
There are several
variations of this
No other 802.11b/g channels have been detected.
RF activities detected on other channels (8, 9).
Other 802.11g/b channels are detected to be in use, but they do not interfere with the WiJET’s current operating channel.
RF activities detected on other channels (1, 5, 8, 11). WARNING: Interference.
Existing operating channels have been detected and possible interference sources have been found. If the WiJET is
operating in a noisy RF environment, the PSM may have problems connecting with, and maintaining connections to the
WiJET even if a connection can be established.
Colored Square
The WiJET can be connected to “openly”. This is the default setting.
The WiJET has had WEP security enabled. Only computers with the correct security settings will be able to
connect with the unit.
This may be different if there are multiple WiJETs operating in the same area.
Note that this indicator is refreshed only when an action causes the WiJET to screen the Banner Display.
(At initial boot-up / at the end of a session / or after a disconnect caused by a dropped connection)
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WiJET.Gmac - Specifications
WiJET.Gmac - OTC Wireless Projector and Monitor Adapters
IEEE 802.11g
Projector/Monitor Interface
Standard 15-pin VGA connector
WiJET.Video (only): Component, Composite & S-Video
Automatically set to user’s display resolution up to XGA (1024x768)
Automatically set to user’s color depth up to 16-bit True-Color
Application software run on Mac OS X
Web-served Administration application to allow user to upload banner page, set WEP, set channel and upload firmware
2.4GHz – 2.483GHz
RF Channels
11 channels (US, Canada), 13 channels (Europe), 14 channels (Japan)
Transmission power
14dBm at antenna input typical
Receiver sensitivity
-65dBm qt 54Mbps or -80dBm at 11Mbps @1e-5 BER typical
Data Rate
Support antenna diversity with one externally connected (RSMA connector) Dipole antenna with ~5dBi gain and an
internal dipole antenna with ~0 dBi gain
54 Mbps maximum with multiple user-selectable fall back data rates.
Link Distance
~1200 ft in open space; 300 ft typical in indoor environment at 11Mbps
Network Types
AP mode for dedicated presentation link and Station mode for Networked mode
Network Security
64bit or 128-bit WEP
DC Voltage
Current consumption
2.0 A (max. reached in transmit-mode)
LED Indicators
Power / Wireless Link
4.4” wide x 6.25” long x 1.5” high
Operating Temperature
-10°C – +50°C
Operating Humidity
10% to 85% non-condensing
Regulation Compliance
Display resolution & color
Software supplied
WiJET Technical Manual
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Resetting to Factory Defaults
If it becomes necessary to reset the unit back to its default Factory Settings, please follow the directions below:
The WiJET.Gmac’s hardware-reset button is located near the power plug. Use a bent paper clip
to access the hardware-reset button (do not use a sharp pointed object).
WiJET Technical Manual
Turn on or reboot the WiJET.Gmac.
During the boot-up screen, watch for a message that reads:
“Reset to factory default” timer starts”
This message appears at the start of the second system message screen. There will be
approximately 10 seconds to reset the unit.
Gently push the hardware reset button on the WiJET.Gmac unit before the timer ends. If
successful, the WiJET.Gmac will automatically reboot itself. Otherwise, return to step 1
and try again.
After a successful reset, during the subsequent boot-up, a message stating “Reset to
Factory Default” will appear next to the Timer message. This indicates the operation is
Subsequent boot-up screen should not display the Reset to Factory Default message
unless this has been triggered by another reset or if for some reason the firmware has
been corrupted.
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A ppendi x
Troubleshooting Guidelines
Unable to Connect or Establish a Session with a Unit
The WiJET suddenly displays the Banner Display
The "WiJET not available" message box displays while trying to establish a session
with WiJET. The possible causes are listed below.
If link-loss lasts for a preset period of time, the product will terminate the reconnection
waiting state and display the banner page. Whenever a wireless link can be sustained
with the unit, a computer can establish a fresh presentation session.
The SSID setting of the computer wireless adapter does not match the
The computer's WiFi Adapter was not set to operate in Infrastructure Station
The computer's WiFi Adapter was not set to use the same encryption
settings as the WiJET once the unit's default encryption settings were
The unit is not receiving the wireless signal. Reboot the WiJET.
With certain brands of PCMCIA 802.11g WiFi cards, it may take a bit longer
to link up with the WiJET. Wait awhile for the WiFi card to establish a
wireless connection with the WiJET and then click on the "Establish a
Session" on the PSM's main dialog again.
Some DHCP-enabled wireless Network computers may take several
minutes after boot up before it is able to obtain a valid Network IP address.
Use the "ipconfig" command to see if a valid IP address has been assigned
to the corresponding Network connection. When the computer has finally
been assigned a valid IP address, click on the "Establish a Session" on the
PSM's main dialog again.
The default duration for a link-loss is 8 seconds. The WiJET will attempt to reconnect
3 times during this duration. If no connection is reestablished before the reconnection
timer runs out, the unit will revert the display to the banner page.
The WiJET session is interrupted during a presentation
This signals that the unit has detected a link-loss for an extended period of time or
severe communication error. Since the product is designed to support one
presentation at a time, the WiJET cleans up the communication error and returns itself
to the initial state (Banner Display). In these situations, the WiJET will be available for
connection. The product is designed this way in order to prevent the unit from being
locked up by one potentially malfunctioning computer. With the auto-reconnection
feature, this rarely occurs.
If this condition occurs, follow the steps below:
Click "Establish a Session" to try to resume the presentation. If the
presentation is successfully resumed, the abnormal condition is just
temporary and no further action is required.
If the current presenter failed to resume the presentation by clicking
"Establish a Session", have another presenter try to "Establish a Session". If
this new presenter can successfully start a presentation, the problem is
localized on the previous presenter's computer and/or its wireless card.
If a second presenter also fails to "Establish a Session" to the unit, a
persistent abnormal condition has to be identified. Follow other
troubleshooting tips in this chapter to identify the persistent abnormal
condition. Most commonly, this is caused by radio interference.
The WiJET screen appears frozen during a presentation
This indicates that the WiJET unit has suffered a link-loss. New material from the
computer cannot reach the unit. The unit therefore continues to display the last image.
The WiJET and PSM have an intelligent built-in mechanism to detect the link-loss and
will automatically attempt to restore the connection. When a link-loss has been
detected, the PSM displays a message box and tries to automatically restore the
connection. If the auto-reconnection attempt is successful, the user does not need to
do anything. In this case, the auto-reconnection is user transparent. However, if the
link-loss persists, for instance, if a PCMCIA card was accidentally pulled out, then the
user must restore the wireless link so that the auto-reconnection attempts can
succeed. The presentation screen will not be updated once the link is lost until a
connection is re-established.
WiJET Technical Manual
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Radio Interference
Limited Warranty
Eliminate or reduce RF interference by trying the following:
Find the "channel" used by the source of the interference and coordinate the
Network and the interference source to be on channels that are at least
20MHz, but preferably 30MHz, apart. In other words, set all neighboring
Networks to be four channels apart.
Move the unit to a location where the interference is minimized. In general, it
is a good practice to keep the WiJET and its presentation computer away
from other wireless devices.
Avoid using 2.4GHz cordless phones in the vicinity of the radio.
Keep the computer and the WiJET unit away from microwave ovens and
large metal objects.
Consult the dealer or an experienced radio technician for help.
Screen Refresh Rate Setting
WiJET Hardware
The seller warrants to the end user (“Customer”) that this product will be free from
defects in workmanship and materials, under normal use and service, for one (1) year
from the date of purchase. The seller’s sole obligation under this express warranty
shall be, at the seller’s option and expense, to repair the defective product or part,
deliver to Customer an equivalent product or part to replace the defective item.
All returns must be authorized by OTC Wireless, Inc. and accompanied by a Return
Materials Authorization (RMA).
All products that are replaced will become the property of the seller. Replacement
products may be new or reconditioned.
Most monitor and projectors will work automatically with the default screen refresh rate
setting of the WiJET. A few may not and screen clipping may occur. Please see the
“Adjusting the Screen Refresh Rate” section for instructions on correctly configuring
the screen display.
Technical Support
Visit for additional information about other OTC Wireless
products and up-to-date contact information for Technical Support.
WiJET Technical Manual
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Regulatory Compliance
FCC Part 15 Declaration of Conformity (DoC)
FCC Radiation Exposure Statement
The Referenced equipment is herewith confirmed to comply with the requirements of
FCC Part 15 rules. The operation is subject to the following two conditions:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance of 20cm between the radiator & your body.
This device may not cause harmful interference, and
This device must accept any interference received, including interference
that may cause undesired operation.
FCC Rules and Regulations - Part 15
Changes or modifications not expressly approved by seller could void
the user’s authority to operate the equipment.
This transmitter must not be co-located or operating in conjunction with
any other antenna or transmitter.
This device has been tested and found to comply with the limits for a
Class B digital device pursuant to Part 15 of the Federal
Communications Commissions Rules and Regulations. These limits
are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
European Community (EC) Directives Conformity and
This product is in conformity with the protection requirements of EC Council directives
89/336/EEC, 73/23/EEC, and 1999/5/EC on the approximation and harmonization of
the laws of the Member States relating to electromagnetic compatibility, safety of
electrical equipment designed for use within certain voltage limits and on radio
equipment and telecommunications terminal equipment.
. This product satisfies the radio
The CE marking indicates compliance:
spectrum requirements of EN 300 328-1, the EMC requirements of EN 301 489-17,
the safety requirements of EN 60950, and the RF safety requirement of EN 50371.
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 and correct the interference by one or more of the following
Relocate your WLAN equipped laptop computer.
Increase the separation between the WLAN equipped laptop computer and
other electronics.
Connect the WLAN equipped laptop computer into an outlet on a circuit
different from that of other electronics.
Consult the dealer or an experienced radio/TV technician for help.
WiJET Technical Manual
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