User Guide

ManualsBrandsCheckpoint Systems ManualsElectronicsGeneral Purpose Reader

265245

NOTICE TO PERSONS RECEIVING THIS DRAWING

AND/OR TECHNICAL INFORMATION:

Title:

TR4090 USER’S GUIDE

Checkpoint Systems claims proprietary rights to the material disclosed hereon.

This drawing and/or technical information is issued in confidence for engineering

information only and may not be reproduced or used to manufacture anything

shown or referred to hereon without direct written permission from Checkpoint

Systems to the user. This drawing and/or technical information is the property

of Checkpoint Systems and is loaned for mutual assistance, to be returned

when its purpose has been served.

THIS DRAWING AND/OR TECHNICAL INFORMATION IS THE

PROPERTY OF CHECKPOINT SYSTEMS, INC.

Revisions Revisions

Rev Description Date Engineer Rev Description Date Approved

Doc Spec.: Date:

Dwn:

P. WILHELM Date: 9/13/00

Chk: Date:

Eng: P.WILHELM Date: 9/13/00

Size A

265245

Used On Appd: Date:

Scale: N/A



2000 Checkpoint Systems, Inc.

Page

Summary of content (9 pages)

PAGE 1
NOTICE TO PERSONS RECEIVING THIS DRAWING AND/OR TECHNICAL INFORMATION: 265245 Checkpoint Systems claims proprietary rights to the material disclosed hereon. This drawing and/or technical information is issued in confidence for engineering information only and may not be reproduced or used to manufacture anything shown or referred to hereon without direct written permission from Checkpoint Systems to the user.
PAGE 2
TR4090 USER’S GUIDE TABLE OF CONTENTS 1.0 OVERVIEW ......................................................................................................................................... 3 2.0 INSTALLING THE TR4090 ................................................................................................................ 3 3.0 SERIAL DATA FORMATS................................................................................................................. 4 3.1 BCH-ENCODED DATA ...................
PAGE 3
TR4090 USER’S GUIDE 1.0 OVERVIEW The TR4090’s function is to “read” MCRF355 passive read-only RFID tags. The MCRF355 provides 154 bits of non-volatile user memory. When the MCRF355 enters the RF field of the TR4090, it is in a tuned state. The tuned circuit of the tag resonates with the continuous RF field of the TR4090 antenna and therefore gathers energy. The tag stores enough energy to keep the tag circuit powered long enough to transmit its 154 bits of data.
PAGE 4
TR4090 USER’S GUIDE • • • 1.) 2.) 3.) 4.) 3.0 TR4090 Wall pack, 12V @ 1A output, 120VAC input 50 Ohm antenna with BNC connector Connect the BNC connector of the antenna to the TR4090’s BNC connector. Mount the TR4090 and the antenna to suit the application. Plug the jack end of the wall pack into the TR4090. Plug the AC end of the wall pack into a 120VAC outlet. The TR4090 is ready to read tags. SERIAL DATA FORMATS The TR4090 automatically reads (no settings required) three tag data formats.
PAGE 5
TR4090 USER’S GUIDE 3.1 BCH-ENCODED DATA If the tags used are BCH-encoded, the data sent from the TR4090 to the HOST PC via an RS-232 serial port will have a start character of an ASCII capital ‘H’, followed by 126 bits of BCHencoded binary data, and an end character which is an ASCII capital ‘N’.
PAGE 6
TR4090 USER’S GUIDE ASCII data, and an end character which is an ASCII capital ‘N’. All characters are therefore ASCII and so can easily be viewed using HyperTerminal for example. For example, the data read by the Reader will be of the form: Preamble Header User Data CCITT-16 CRC Unused memory 0xFF 0x11 15 bytes 2 bytes 2 bits and the data sent out by the Reader to the HOST will be of the form: 4.
PAGE 7
TR4090 USER’S GUIDE stored in non-volatile memory so that when the TR4090 is turned off and then back on, the last set data rate will be the data rate at which the TR4090 will transmit tag data. Example: 6.0 To change the baud rate, at which the TR4090 transmits data, to 28.8k baud, the HOST PC should send the command “ B3\n” or “ b3\n”. The TR4090 will then respond with the message “ Baud rate is 28.8k”.
PAGE 8
TR4090 USER’S GUIDE An upper case ‘T’ or lower case ‘t’ is sent first, followed by an ASCII ‘3’ to command the TR4090 to transmit (amplitude modulate the carrier) its identification number at a data rate of 357bps. The symbol rate is therefore 1 symbol/11.2msec which gives 700usec/pulse position. The pulse width is ½ the pulse position time which is 350usec. 7.1.
PAGE 9
TR4090 USER’S GUIDE Assign the 32 byte ID Transmit 32 byte ID at 1.428kbps Transmit 32 byte ID at 714bps Transmit 32 byte ID at 357bps Report 32 byte ID to Host PC via RS-232 Transmit Pseudo Noise at 1.428kbps Transmit Pseudo Noise at 714bps Transmit Pseudo Noise at 357bps Stop Transmitting Pseudo Noise ‘I’ 32 byte ID ‘\n’ or ‘I’ 32 byte ID ‘\n’ ‘T’ ‘1’ or ‘t’ ‘1’ ‘T’ ‘2’ or ‘t’ ‘2’ ‘T’ ‘3’ or ‘t’ ‘3’ ‘R’ or ‘r’ ‘N’ ‘1’ or ‘n’ ‘1’ ‘N’ ‘2’ or ‘n’ ‘2’ ‘N’ ‘3’ or ‘n’ ‘3’ ‘N’ or ‘n’ __________________________