User's Manual

Other PC Cards
Many other PC Cards can be used with Windows operating system, supporting a
variety of different functions, and many forms of integrated wireless
communications. Most of these cards can be used with the Itronix fex21.
NOTE: Some PC Cards require drivers to be loaded onto the fex21. We recommend
that you save back-up copies of these drivers to a CompactFlash card, so that they
can easily be re-installed after a Hard Reset.
Using Wireless Communications
Your Itronix fex21 can use many different integrated radio modem PC Cards and
Itronix CRMA radio modules. If your application uses wireless communications, the
appropriate cards or modules will already have been installed, and your system
provider will tell you how to use them.
The radio variant of the PC Card hatch contains an integrated antenna, and
protects the cabling between the antenna and the PC Card (or CRMA module).
There may also be other connections between the PC Card and the fex21.
Observe these precautions for reliable wireless communications:
•
Do not remove the PC Card hatch unless your system provider tells you to.
Removing it may damage your fex21 and void your warranty. Consult the
labeling on the hatch for details.
•
When you are not using the antenna, always fold it away carefully to prevent it
being damaged.
•
Read the section on FCC RF compliance in this manual for information on safe
use and other requirements.
•
If you experience problems with wireless communications, contact your system
provider for advice.
When you turn off your fex21, you may see a green LED flashing regularly behind
the IR window at the lower right-hand side of the fex21 case. This shows that the
fex21 will automatically turn on again when data arrives at the PC Card port.
Radio transmitters can drain large amounts of current from your fex21 batteries.
Your fex21 may be fitted with Advanced Power Management, which can be set to
warn you when your battery is so discharged that powering-up the transmitter
might cause the fex21 to turn off. Your system provider should have configured the
APM system ready for you.
The following warning applies to all fex21 units with FCC-approved radio
transmitters:
In order to comply with FCC RF exposure requirements, this device must be
operated with a minimum separation distance of 4 cm between the
user/nearby persons and the antenna in its intended operating position.
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How to use the pen
Your Itronix fex21 is supplied with a special pen or stylus with which to click on the
display screen. You can also use your finger instead of the pen to tap the screen.
The pen is stored in the bottom of the computer, alongside the standard serial port
(COM1).
The stylus tip is soft and spring-loaded to protect the screen coating. Fingernails
are soft enough to use if the stylus gets lost, but a stylus is generally more
convenient.
CAUTION: Do not use a ballpoint pen or sharp pointed object, as this can
damage the surface of the screen.
NOTE: As has already been mentioned, the fex21 stylus is stored in a channel
alongside the battery pack. The stylus must be removed from the channel before
removing the battery pack. Trying to remove the battery pack while the stylus is in its
channel may damage the battery pack or the stylus.
How to adjust the screen contrast
To the left of the ù switch, below the ú symbol, are two keys, one marked ÷
and the other marked ø. These increase and decrease the screen contrast.
The fex21 also has a default contrast setting. To reset the contrast, press both
contrast keys at the same time.
How to use the screen backlight
To the right of the ù switch, below the û symbol, are two keys, one marked
÷ and the other marked ø. These control the backlight and function slightly
differently for color and mono units.
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