Symbol Technologies LS 3070 Manuale Utente

Pagina di 214
 
2-6
 
LS 3070 Product Reference Guide: Setup
 
 
At that time, through the scanner’s contact shoe, there is an exchange of 
information (addressing, RF channels, etc.) between the scanner and the 
base/charger’s cradle. This occurs in less than a second.
 
 
After that exchange, the scanner and base/charger are paired. Successful 
pairing is indicated by a 
 
warble
 
 beep; failure, or unsuccessful link, is 
indicated by a 
 
Lo Lo Lo Lo
 
 beep.
 
Setting Transmission  Frequency
 
Each scanner/base pair communicates on one of a number of channel 
frequencies, which varies by country. In most countries, there are 80 available 
channels (numbered 2 through 81); in France, there are only 9 channeles 
(numbered 46 through 54).
The initial transmission frequency is determined by the base’s unique address, 
so neighboring LS 3070 systems operate on different channels. This allows 
them to transmit simultaneously without interfering with each other. Channel 
separation is optimal between sequential base addresses, so base units closest 
to each other should be assigned sequential base addresses if possible. (Note 
that data is transmitted between a scanner and base so quickly that a number 
of different LS 3070 systems can normally operate on the same channel without 
noticeable interference.)