Using Rf Communications; Understanding The Rf Status Icons And Leds - Intermec Janus 900 Quick Reference Manual

JANUS 900 MHz Radio Frquency Quick Reference Guide
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Using RF Communications

For RF communications, use the Communications Manager, IRL Desktop, or an
application created using the software libraries provided in the Programmer's
Software Kit Language Libraries. For help in learning about the language
libraries, refer to your JANUS PSK reference manual.
Note: The Interlnk/Intersvr utilities do not work with RF communications.
When you use a communications program, the RF communications port is
designated as COM4. Since COM4 is not a standard PC communications port,
you cannot access it with commercial communications packages.
You can switch between RF communications and serial communications
(by designating whether you are talking to COM1 or COM4. If you are
switching between COM1 and COM4, you need to have protocol handlers
loaded for both ports.
Once your RF system is configured for RF communications, you can begin
collecting and transmitting data using your JANUS RF device to and from a
network controller. When you transmit data using the JANUS RF device, the
information is first sent to its radio buffer. The data is then sent on to the
network controller. Even if the RF network goes down, you can continue to
collect data until the radio buffer is full. When the buffer is full, the application
returns a communication timeout status. The actual status response depends on
what language you used to develop the application. When your RF network
comes back up, the data in the radio buffer is transmitted to the network
controller and you can once again transmit data.
Caution
Do not operate two RF devices within 2 feet (0.6 meters) of each other when
using RF communications. Doing so may damage the radio receivers.
Conseil
Assurez-vous de ne pas utiliser deux devices RF de carte à moins de 2 pieds
(0,6 mètres) l'un de l'autre lorsque vous effectuez des communications en
radiofréquence. Sinon, les récepteurs radio pourront être endommagés.

Understanding the RF Status Icons and LEDs

RF status icons on the reader display correspond to LEDs on the J2050 case.
These RF icons and LEDs are used to manage RF communications:
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