Symbol P 370 RF, Справочное руководство

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P 370/470 RF Scanner Product Reference Guide
Installations in Spectrum24 or Other 2.4GHz
Environments
When installing the RF scanner system in a Spectrum24 environment, follow the following
general rules:
1. RF scanner location relative to a Spectrum24 Access Point can increase performance.
Network products use Access Points (base stations) that are positioned fixed
throughout the facility. The greatest performance for the RF scanner can be obtained
when they are positioned at least 6 feet (1.8 m) from those other networks.
Positioning the RF scanner closer than 3 feet (0.9 m) to another 2.4 GHz transmitter
should be prevented.
2. Choice of channel can help optimize the RF scanner performance.
The RF scanner has three channels that are not utilized by Spectrum24 (channels 81,
82, and 83)
1
. Select these channels for those RF scanner systems closest to the
Spectrum24 transmitter. Note: Multiple scanners can occupy the same channels,
especially in applications with lower scanning duty cycles. Channels 60 through 80
should be chosen next as these still provide added performance for an RF scanner
system.
3. Increasing the number of RF scanner retries can improve the RF scanner system
communication.
The RF scanner by default is set to attempts communication four times before
reporting an error. If Spectrum24 traffic is very heavy, you can increase this number
of retries. Note that increasing the number of retries, may increases the time it will
take to complete a transaction.
Programming the System
The scanner is programmed by MCL and by scanning sequences of bar codes; see the MCL
Designer for Phaser Series User’s Guide and Chapter 5, Parameter Menus.
1. Not available in some countries.