User's Manual

User’s Manual to XCRF-502E Reader
Internal use.only. Any transmission is not
allowed without permission.
43
suggestions given below are helpful to the system performance
optimization in specific environments and applications.
Þ Carefully design and install the Reader’s antennas. The
standard length of the RF cable between the Reader and the
antennas is set as 10m. An excessive RF cable will cause
attenuation of transmitted signals, and the attenuation of
received echo signals will also be augmented, which will
therefore reduce the distance of read and write.
Þ Any change to the connection of the antennas and the models
of the antennas will greatly impact the system performance.
Þ Consider the RF features of the environment, including the
construction materials, office hours, and the configurations
of the windows and the pipes. The mode and read distance of
the RF field may be influenced by adjacent metal objects,
such as home appliances, devices and metal frameworks.
Þ Make sure that the object to be identified by the electronic
tags stays no less than 10ms in the effective read area of the
Reader.
Þ The Reader antennas’ directions of polarization must be
identical to that of the electronic tags’ antennas (linear
polarization); the electronic tags can find the minimum and
maximum read distances by rotating them by 90°, when the
linear polarization is used.