Tres 900s User manual

tres900s
Operations Manual
Revision A – 6/21/2019

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Table of Contents
PRODUCT DESCRIPTION ........................................................................................................ 1
SCOPE ........................................................................................................................................... 1
SUMMARY .................................................................................................................................... 1
PRODUCT IDENTITY ...................................................................................................................... 1
REFERENCE DOCUMENTS ............................................................................................................. 1
REVISION HISTORY ....................................................................................................................... 1
PRODUCT OPERATIONS ......................................................................................................... 2
HARDWARE DESCRIPTION ............................................................................................................ 2
READER ........................................................................................................................................ 2
TAGS ............................................................................................................................................ 2
WIEGAND INTERFACE ................................................................................................................... 3
SERIAL RS232/RS485 .................................................................................................................. 3
TRIGGER MODE ............................................................................................................................ 3
POWER REQUIREMENTS ................................................................................................................ 3
RELAY DESCRIPTION .................................................................................................................... 3
SOFTWARE DESCRIPTION ..................................................................................................... 3
OPTION FEATURE ......................................................................................................................... 4
DEFAULT TRES900S SETTINGS ...................................................................................................... 4
CONNECTING TO TRES900S................................................................................................... 4
WIRING DIAGRAM ........................................................................................................................ 4
LED Control ............................................................................................................................. 5
RS232 Control .......................................................................................................................... 5
RS485 Control .......................................................................................................................... 5
Earth ......................................................................................................................................... 5
Power Connect ......................................................................................................................... 5
Relay Control ........................................................................................................................... 6
Trigger Control ........................................................................................................................ 6
Wiegand Control ...................................................................................................................... 6
TRES900S INTERFACE SETUP PROGRAM ......................................................................... 6
UPPER LEFT TOOLS ...................................................................................................................... 7
CONTROL SECTION ....................................................................................................................... 7
Comm ....................................................................................................................................... 7
Reader Interface Actions .......................................................................................................... 7
RF Section ................................................................................................................................ 8

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Reader section .......................................................................................................................... 8
Serial Comm Section ................................................................................................................ 8
Wiegand Section ....................................................................................................................... 9
IDs Section ............................................................................................................................... 9
Relay ....................................................................................................................................... 10
INDICATORS ............................................................................................................................. 10
LOG WINDOW .......................................................................................................................... 10
SPECIFICATIONS..................................................................................................................... 11
READER INSTALLATION GUIDE ........................................................................................ 11
MOUNTING ................................................................................................................................. 11
INSTALLATION OVERVIEW .......................................................................................................... 12
Trigger Function .................................................................................................................... 12
Vertical Plane ......................................................................................................................... 12
Tag Vehicle Installation ......................................................................................................... 12
Parallel Surfaces Rule ............................................................................................................ 12
WIEGAND PANEL WIRING .......................................................................................................... 13
SERIAL PORT RS232 WIRING ..................................................................................................... 13
TROUBLESHOOTING GUIDE ............................................................................................... 13
WIRING GUIDE ........................................................................................................................ 14
LIMITED WARRANTY ............................................................................................................ 15

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Product Description
Scope
This document describes the functional requirements and software features contained in the
newly designed tres900 Enhanced GEN2 Reader hereon known as tres900s. This document
lists the product specifications, as well as performance, and operational criteria.
Summary
The tres900 is the brand name for a new line of 902~928 MHz RFID Readers and Tags. We
are a U.S. based company comprised of seasoned RFID professionals, including engineers,
marketing, and distribution specialists. We have designed a product line that is ideally suited to
the parking, supply chain, document tracking, and many other markets. We will be selling our
products through Systems Integrators, Distribution and OEM channels. The tres900s is
designed and manufactured in the USA to be an enhance version of the present tres900 GEN2
UHF Reader.
The tres900s is designed to reduce the number of electronic components needed for a traditional
Product. This is accomplished by using a custom integrated RF IC in place of many individual
components. The product will offer the following features:
 Wiegand Output Format, multiple and custom formats, 3-wire
 EMI protected I/O lines, i.e. 2 each for Wiegand Output, 1 each for Trigger Input, 2 each for
RS232, 2 each for RS485, etc.
 Reverse Polarity and Over Voltage protection on the input voltage
 Serial RS232 + RS485 Bi-directional, used for configuration and data output
 Buffer (100 mS to 60 sec), read tag + output tag + buffer tag, read and output after buffered time
 Timer read (10 mS to 1 sec), time between read and output data
 Multiple tag reads, single tag process the strongest RSSI read from tags
 LED flashing and Audio (Piezo) tone for power on and for a tag read
 Ethernet TCP/IP Output, daughter board (optional)
 Controller functionality w/relay, Site Code and ID range configurable
 SPI Flash IC to restore the program and store valuable settings
Product Identity
The tres900s will be given an engineering part number. This part number prefix will start with
the prefix number ‘900S’. The firmware version will be ‘900S.0.0.xx’. Designated as:
Model # Board rev Hardware rev Serial Number
900S x xx xxxxx
Reference Documents
 TBD
Revision History
 Rev 01 04/13/19 - first draft by Rick L
 Rev 02 05/31/19 - changes made after evaluating prototype units
 Rev A 06/21/19 - first release after hardware updates and pre-production units

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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.

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Wiegand interface
The Wiegand interface uses three wires, one of which is a common ground and two of which
are data transmission wires usually called DATA0 and DATA1, alternately labeled "D0" and
"D1" or "Data Low" and "Data High". When no data is being sent, both DATA0 and DATA1
are pulled up to the "high" voltage level — usually +5 VDC. When a 0 is sent the DATA0 wire
is pulled to a low voltage while the DATA1 wire stays at a high voltage. When a 1 is sent the
DATA1 wire is pulled to a low voltage while DATA0 stays at a high voltage.
The high signaling level of 5 VDC is used to accommodate long cable runs from card readers
to the associated access control panel, typically located in a secure closet. Most card reader
manufacturers publish a maximum cable run of 500 feet. An advantage of the Wiegand
signaling format is that it allows very long cable runs, far longer than other interface standards
of its day allowed.
Serial RS232/RS485
The Reader will output standard RS232/485 outputted via standard ASCII format or HID serial
format and can be viewed on any ASCII terminal viewer like Hyper Term. The RS232 will be
a bi-directional device because it also needs to communicate to a PC the setup parameters
described later in this document.
Trigger Mode
When the Installer puts the reader in trigger mode, the reader will be put into IDLE mode, this
means the reader will not read and power consumption will be only 20mA. Once the trigger is
activated (Trigger wire to ground); it will take 6mS to start reading and outputting tag data
again. There are two external terminals on the connector, software configurable.
Power Requirements
The tres900s is powered from the TRES supplied regulated power supply with a voltage range
of +5vDC @ 2A minimum.
Relay Description
The CPC1018N is a miniature single-pole, normally open (1-Form-A) solid state relay that
employs optically coupled MOSFET technology to provide 1500Vrms of input to output isolation
with up to 600mA Load Current and 60Vp Blocking Voltage. The super-efficient MOSFET
switches and photovoltaic die use IXYS Integrated Circuits Division’s patented OptoMOS
architecture while the optically coupled output is controlled by a highly efficient infrared LED.
Software Description
In this section, we will try to describe options that can be configured in the field. TRES
developed a GUI that will be self-contained (.exe) so it can be run easily in the field and not
have to install it on the user’s device. Below are some of the features that need to be
incorporated in this program.

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Option Feature
These below options should be incorporated into the new setup program that would be used in-
house and in the field by installers to configure the reader for their installation site they are
presently at. Features that should be included are:
 RF Power settings, 10 dBm minimum; to 30 dBm max (pull down menu)
 Wiegand Output, pulse width, and pulse period (see range below in Table and References)
 Read tag output, read buffer to delay tag after first read and output, 100 mS minimum to 60 seconds
maximum, works on both Wiegand and RS232/485 (configurable)
 Timing Read, timing read interval 100 mS minimum to 5 seconds maximum
 Trigger Read Delay, length reader powered after Trigger let go, 0 to 100 seconds
 Single tag read mode (strongest tag RSSI read) or multiple tags; selectable
 Switch between Wiegand + Serial or Serial Only modes
 Serial output configured for Raw ASCII or HID serial simulation
 RS485 configurability, Baud rate, Protocol (CR/LF or OSDP), and Address
 Incoming Tag ID, output certain Facility Code 1 to 255 (26-bit only range), tag IDs’
 Relay: not Enabled, Hold Time 100 mS to 3 seconds
 Indicators control, LED + Audio, On /Off, software configurable
 Log window, to monitor tags being read
 Update Firmware, a feature to field flash the firmware
 Large Tag display window to read tag data at a long distance
Default tres900s settings
 Radio Power: 30 dBm
 Reader: Timed Mode, Multiple Tags, 500mS timed interval, and trigger read delay 0 sec.
 Serial Comm: RS232 baud rate 115200, ASCII mode
 Wiegand: Wiegand + serial, output buffer 500mS, Pulse Width 80uS, Pulse Period 1200uS
 Ids: Facility Code is not selected
 Relay should not be selected
 Output Wiegand + Serial
 Output Buffer set to 0.1 sec
 Received Timing selected
 LED selected
Connecting to tres900s
In this section we will detail the incoming wires to the tres900s reader. Please refer to the label
and diagram that follows this text and note the terminal markings.
Wiring Diagram
The top label designates the signal to the main PCBA, described later in this document, and the
bottom color labels denote the color cable codes used on the present tres900 Reader.

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LED Control
This is an LED control output; it will power an LED with 3.3v DC. The LED+ goes to the
Anode of the LED while the LED- goes to the Cathode of the LED.
RS232 Control
This input / output lines are used to control or be controlled by and RS232 device. Line
description, 232T goes to pin 3 of a 9-pin DIN (RX), 232R goes to pin 2 of a 9-pin DIN (TX)
and 232- goes to pin 5 of a 9-pin DIN (ground).
RS485 Control
This input / output lines are used to control or be controlled by and RS485 device. Line
description, 485B normally goes to the T/R- or 485B line, 485A normally goes to the T/R+ or
485A line and the 485- is the Ground line.
Earth
Here you would connect an Earth ground to the reader instead of or still to the back panel of
the reader.
Power Connect
This is where you get power to the reader from TRES supplied regulated power supply.
Remember to use the TRES regulated DC supply +5vDC @ 2A. The reader has a built-in linear
regulator with EMI, reverse polarity and overvoltage protection.

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Relay Control
You can use this relay to control a power relay or an external LED that needs more power than
supplied. You could put 12vDC on one side of the relay and an LED to ground on the other.
The relay is a form C NO relay.
Trigger Control
Here is where you would connect your relay output from a detection device or anything you
would want to control the reader. When you select trigger mode, you need to short-out the
RLY+ line with the RLY- line, usually thru a dry contact.
Wiegand Control
This is your typical open collector Wiegand output terminals. The WIG1 line goes to your
DATA 1 (D1) terminal on your controller, the WIG0 line goes to your DATA 0 (D0) terminal
and the WIG- is the Wiegand ground line.
tres900s Interface Setup Program
In this portion of the document you will learn how to communicate and configure the tres900s
Reader. Hook up your tres900s and stated in the previous section, connect to a serial port, and
power up everything. When you run the TRES_SETUP.EXE program (Downloadable from our
website) you will see the following screenshot:
As you can see from the image above, you have many features that allow you to modify the
tres900s reader, so you can have a more successful install. These features were described above
in this document and below.

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Upper Left Tools
In the upper left section of the tres900s Setup
utility you will see three (3) icon buttons, the one
that looks like a gear (next to check mark) has the
following four (4) options:
1. Open Tag Display, this is a feature that will
display a large window in the upper portion
of the computer screen that will display any
valid 26-bit Wiegand that is read by the
iModule. This is a usefull tool to easily read
the decyphered Wiegand tags.
2. Reader IP Address List, allows you to
modify the IP settings if you have the TCP/IP
option.
3. Set IP Address, after you modified the IP
address, this will upload it to the reader.
4. Update Firmware, this allows you to update the firmware in the field. This is useful if
there are changes to the product or if you have custom firmware.
5. Reader ID, this is where you can get the serial number on the reader, can only be modified
at the factory.
Control Section
This is the first section you will use to connect to the tres900s, here is where you will connect
and communicate between your computer and to the tres900s. You may first want to do a Device
Manager lookup on your computer to see what COM PORT you are using to connect to the
reader with.
Comm
Upon power up, the tres900s will search for available communication
devices. Select the appropriate Comm Port device from the drop-down menu
to connect to your computer to the reader, then press the Connect button, if
you have the TCP/IP option, you can also select it here. When connected, you
will get the screen that states that you are connected, a Query is done during
the connection process. When finished using the setup program, just press the
Disconnect button. If you plug in your serial device after starting this
software, that device will not be recognized, you will have to shut down the
setup program, then restart the setup program in order to recognize your
communications port.
Reader Interface Actions
Query Reader, this should always be done if you made changes to the reader
and wanted to get the stored data from the tres900s. A Query is done
automatically when you first connect to the tres900s and run the setup program.