Revision A
6/21/2019
tres900s Operations Manual
Page
2
Product Operations
Hardware Description
The
tres900s
Reader comes with many rich features like multi-protocol and multi-tag reading,
integrated and environmentally protected packaging and long-distance reading.
The
tres900s
Reader is a fully integrated reader with a RF module IC, power conditioning,
built-in circular polarized antenna and packaged in a weather-tight and UV protected housing.
The circular polarized antenna allows it to work in AVI and asset management applications and
its programmable triggering modes enable the reader to work in either self-triggering (timing)
or trigger mode. Versatile I/O interfaces enable the
tres900s
to work with multiple serial
devices and with standard Wiegand controllers.
The
tres900s
Reader is a multi-protocol UHF reader, which supports ISO18000-6B and EPC
protocols. It can read UCODE, TI, Alien and many other labels. The reader’s firmware is field
upgradable, enabling it to support protocol expansion and feature upgrades, giving it the ability
to grow with the maturing RFID technologies.
The integrated high-gain circular polarized antenna allows the reader to achieve a respectable
read range, and the internal DSP module enables the reader to manage multi-tag arbitration at
high speed, thus making it suitable for AVI and material management applications.
Reader
The RFID Reader is a device that captures and processes tag data. These devices are called
readers or interrogators. Readers are connected to the antenna and are connected to the RFID
network infrastructure. The Reader provides the energy of which a fraction is used to energize
and wake up the tag. The reach of the reader is determined by the design of the antenna (both
Tag and Reader) and the power and configuration of the reader. The Reader detects and filters
data bits emitted from compatible RF Tags then converts the bits into the associated computer
format of serial RS232/485, Ethernet (optional) and/or Wiegand communications protocols.
Advanced error detection algorithms provide error-free operation.
The
tres900s
Reader operate on a fixed power source of 5vDC. Connection to the Reader is
best made by using shielded twisted pair cables (22 AWG up to 22 feet, over 22 feet see
recommended wire chart at end of this document).
Tags
An RFID-tag is a device which is attached to objects and/or assets to be identified. When radio
signals are received, information is transmitted back to the RFID reader. RFID tags consist of
the following components: the microchip (or IC), the antenna, the connection between IC and
antenna and the substrate on which the tag is produced. The microchips are the brains of the
tag. The antenna handles the communication from either the Tag to the Reader or from the
Reader to the Tag.
Passive tags reflect the RF signal transmitted to them from a reader or transceiver and add
information by modulating the reflected signal. A passive tag does not use a battery to boost
the energy of the reflected signal.
