When the Server receives a SIGN ON message from a RF Terminal, the Server transmits the SIGN ON information to the host application program. The host application can then do one of two things:
1.If it has something for the Terminal to do, it can send a prompt to the Terminal. The RF Terminal receives the prompt, waits for the operator to enter the requested data, and then transmits the data back to the application program.
2.If the host program does nothing within 2 seconds, the Terminal displays the message:
WAITING FOR PROMPT
FROM HOST COMPUTER
Lets suppose that a RF Terminal and a host application program have been processing data by sending prompts and data back and forth as described in example 1. The host application program sends a data prompt to the RF Terminal. The RF Terminal transmits the
If the host application program doesn't respond within 2 seconds, the Terminal Device displays
WAITING FOR PROMPT
FROM HOST COMPUTER
until the prompt is received.
If the Terminal gets no response after 3 transmissions, it will perform an Access Point scan. If it fails to get a good signal from an Access Point with matching SSID and WEP Key, it will display the message:
TERMINAL OUT OF RANGE
PRESS ANY KEY TO RETRY_
You might walk closer to an Access Point or you might simply hold the terminal up high over your head. When you have repositioned the terminal, pressing a key on the Terminal starts the transmission process over again.
If the Access Point scan finds a satisfactory Access Point, the Terminal will display the message:
SERVER NOT AVAILABLE
HIT ANY KEY_
This tells you that the Application Server host program is not running. If you press a key, you will be transferred to the mode menu where you can chose to Sign On again.
