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        User Manual LPR 3011-RS EN
         Contents
1.            8  al POWER SUPPLY dett 10  4 2 OPERATION   OP THE INDIGATOR LIGNE ne ee 10  di  OR CAB R   A a M 10  ade RS CADRE Ra a a a A        rrr rrr 13   5  IREADER PARAMETERS  nine mnreenemnmee annee ane 17  6 CHANNEL FREQUENCIES wesscesscassessseasgusstenssesnieasieasieus iaenteanieanseantansiemduesiaenseasiean   s 19   MAINTENANCE mirae EMI EI DIDI 20  7 1 PERIODIC MAINTENANCE                 sesesseseeennennnmeenn mene nene nnne nnns enirn nns 20  ME UN Sulle T id in ct 20   OMM 6 iempitm    e nedera 20   8 LEGAL INFORMATION  scan AR RAR ERR RARRRRRERRRRRRRRRSSSREe  21  SEES ING  NG E att etait  c E E E E 21  02 EABEL ET                                 PEPPER 21  8 3 TECHNICAL CHARACTERISTICS AND DIMENSIONS eene 21    3 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    1 FOREWORD    1 1 PURPOSE OF THIS MANUAL    This manual presents the BALOGH HYPER X reader LPR3011 RS   It describes how to install and how to use it     Further information pertaining to the data interfaces described in this manual can be found in the  Interface Manual  reference LPR301 1 IM x y EN      1 2 DOCUMENT NAMING CONVENTIONS    The coding used for a manual name is     device name gt   UM II L   in which   UM signifies User Manual  I  refe
2.  50  C  Protection class    e  P65  External dimensions  e Length  174mm e Width  108mm  e Thickness  22mm   Weight  0 7 kg    Connections available    Wiegand 26bits  DATA CLOCK  magnetic stripe ISO 7811 2   RS 232  RS 422  RS485    21 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44656500 Fax  33  0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    
3.  BALOGH SA  189 rue d   Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    3 1 POSITIONING OF READER    The directivity of the reader s antenna is a symmetrical 90  x 90     Mounting the reader horizontally or vertically does not affect its performance     Z y               Side view Top view    Position the reader so that it points to the zone where the tags are likely to be  Maximum  performance is always achieved with the line of sight perpendicular to the face of the reader     With a bracket the reader can be pivoted  The orientation can be freely adjusted  Pivoting can  be either horizontal  side to side  or vertical  up and down      When positioning the reader  the following recommendations should be followed     Avoid placing the reader in direct sunlight  where overheating may cause the internal electronics  to reach temperatures above those recommended for normal operation   If this is not possible then a sun shield should be mounted     When two or more readers are situated in the same zone  make sure they are not pointing  towards each other    If necessary  their pointing axes should be slightly redirected    The frequency channels should be as far apart as possible  A separation of 0 750 MHz is  recommended for readers situated close 
4.  PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33 0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN       er 2 E     SR  TTL cable RS cable              0 0    R8282   R82   nos    Red     Vpower     readers         power supply  GND   reader s         power supply    STROBE  ISO     Data 1  WIEGAND    F  GND   RENE for digital    Yellow   SIC Output colector      BK         EE   _              Brown   MDATA  ISO2    Data 0  WIEGAND   V      Green   PRES BADGE SOZ       TX   v                            9 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44656500 Fax  33 0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    4 1 POWER SUPPLY    The reader can be powered with 12Vdc to 24Vdc   The power consumption is 5W typical  12W maximum     4 2 OPERATION OF THE INDICATOR LIGHT    The indicator light on the reader conveys the reader s behaviour to the user  It is the only visible  part of the system  It is controlled by the embedded reader software  It can also be put under  host control using appropriate MODBUS commands via a serial link     During the initialization phase  the light is a fixed red  If the initialization is successful  the  in
5.  and  24Vdc  current 1A max   Operating temperature  from  20C    up to  50C     2 2 WARNINGS    The badges intended to use with the long range readers may be deprogrammed or damaged  when using mobile phones in direct vicinity   A clearance distance between the badges and mobile phones must be at least 10 cm     The installation of the long range reader may only be carried out in places that fulfil climatic and  technical conditions stated by the manufacturer   BALOGH is not liable for damages resulting from improper handling or incorrect installation     All reconstructions or technological changes result in complete exclusion of liability     2 3 OPERATING PRINCIPLE    Electromagnetic radiation in the frequency range 1 to 100 GHz is called microwaves   Their physical characteristics allow high data rates and good directivity   Reading antennas are smaller and performance is relatively independent of the environment     Tags are not active when not in the reader s antenna zone     The tag s originality  patented  is its capacity to reflect the microwaves emitted by the readers  A  tag receiving an incident unmodulated 2 45 GHz carrier  will reflect this wave but modulated by  its own identification code     The reader receives and processes this signal and then converts and sends the data to a host  system over a standardized connection     5 21    BALOGH SA  189 rue d Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Interne
6. 0 Fax  33  0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    4 4 RS CABLE  4 4 4  ASYNCHRONOUS LINK    The wires carry different signals  depending on the type of interface configured       Colour   Pin   RS 232   RS 422   RS 485      Brown   1   TX   TD    V       green   2   x   X   J  V    yellow    3         RX                oey   4   RX   RX            bue   5   GND   GND   GND      bed        GND   GND   GND         The figures below show external RS 232  RS 422 and RS 485 connections           RS 232 reader connection    Converter  RS232     RS422 Header       RS 422 reader connection    13 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    Equipment    Header       RS 465 reader connection    e LINE TERMINATION    For a simplex link  the termination  if present  should be placed at the receiving end of the line   For a duplex link  the termination  if present  should be placed at the each end of the line     For baud rates less than 1200 bauds  no termination is necessary  For baud rates greater than 9600  bauds and line lengths greater than 1000 metres  a resistor eq
7. LPR 3011 RS READER    USER MANUAL    DOCUMENT REFERENCE  LPR3011RS UM 1 3 EN          BALOGH SA  189 Rue d Aubervilliers   CP 97   75886 Paris  Cedex 18   France  T  l  phone  33  0 1 44 65 65 00  Fax  33  0 1 44 65 65 10    Web  http   www balogh rfid com                   BALOGH TAG  3637 Old US 23  Brighton  Michigan MI 48114  USA  Tel  USA  800  252 RFID  7343    810  360 0182  Canada  800  258 RFID  7343   Fax   810  360 0237    2 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    CONTENTS    T FOREWORD                    M 4  l4 PURPOSE OF TRIS MANDALE SSSR vetitis ne die nee ondes 4  1 2 DOCUMENT NAMING CONVENTIONS                    esee 4  13     DOCUMENT STATUS SHEED cci oni pt oki n ic vie i ce E v ee un 4  Ur ME ope                    4   2    DESCRIPTION OF HEADEBRU22522022229220220229200205x  60 89 aoee Naaa esse  D  2 11  GENERAL DESGRIP TOI sr cn emo 5  22 NN Cm a sin E een 5  2 9    OPERATING PRINCIPES Sen a nn ont 5  24  COMMUNICATION INTERFACES  LE in 6  2  ON ERAULDIMENSIONSESS SR SE Red ti in 6   3    INSTALLING THE LPR R  ADER  acri Run SEE EE SE FEE semer 6  31    POSITIONING OF READER socrii a Ea ERR Re und revo eade Rr urhe vent 7   4 CONNEXION OF READER LPR 3011 RS                                
8. ct to amendment     Doc ref  LPR3011RS UM 1 3 EN    8 LEGAL INFORMATION  8 1 CE NOTICE    DECLARATION OF CONFORMITY CE 0536  BALOGH Toulouse  105 Avenue du G  n  ral Eisenhower    31023 TOULOUSE cedex 1  FRANCE    This declaration certifies that the device LPR 3011 satisfies the essential requirements of the  European directive R amp TTE 1999 5 EC aiming to align the laws of the Member States relating to  the use of the electromagnetic spectrum  electromagnetic compatibility and electrical safety     This declaration applies to all readers manufactured according to the technical specifications  outlined in Annexe Il of the directive  Evaluation of the conformity of the equipment with the  essential requirements of article 3 R amp TTE has been done in accordance with Annex IV of the  directive and the following standards     Radio spectrum  EN 300 440  EMC  EN 301 489 1 and  3  Electrical safety  EN 60 950  8 2 LABEL  LPR 3011 RS  BALOGH Power  12 24V DC  1Amax     0536     Made in France HYPER X    Radio Identification N S   36419    8 3 TECHNICAL CHARACTERISTICS AND DIMENSIONS    Radio frequency    Frequency band  2 45 GHz    Emitted power  10mW     ag to reader data rate  30 Kbps    Modulation  BPSK  Biphase Shift Keying     Protocol  HDLC  e Number of channels  31  Power supply    Voltage range  12 to 24 Volts DC    Current  1A max  Environmental conditions    Relative humidity  9096 non condensing  e Storage temperature   25   to 480  C    Operating temperature   20   to 
9. dicator light starts to flash green  otherwise it flashes red very slowly     If after power on the light flashes quickly  this is usually caused by a power supply problem   either voltage or current insufficient  This is not a fault condition  but an indication that a better   dimensioned power supply must be used      During the reading of a tag  the indicator light goes out for one second  then resumes green  flashing     When reading a tag with a low battery  the indicator light flashes red briefly before going out for  one second  then it resumes green flashing     4 3 TTL CABLE  4 3 1 POWER SUPPLY      Colour     X Name   description              Reader s   power supply       Reader s     power supply    The power supply to the reader must be between  12VDC and  24VDC with a maximum power  of 5W     4 3 2 OPEN COLLECTOR CONNECTION    The wires convey different signals  depending on the type of interface selected       Colour __    S02 J       WIEGAND  STROBE DATA    1     MDATA DATA    0       PRES BADGE                       10 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    The figures below show external ISO2 and WIEGAND connections    5 12 VDC    QO    HYPERX USER    READER EQUIPMENT       WIEGAND reader conn
10. ection    5   12 VDC    HYPERX USER    READER EQUIPMENT    GND  ISO2  DATA CLOCK  reader connection       11 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    4 3 3 DIGITAL OUTPUT  The digital output is galvanically isolated from the reader by means of an optocoupler     VI        optocoupler SIC    SIE    Circuit diagram of digital output    The writing of a logic  O  and the application of an external voltage  of between 5V and 24V  applied to  terminal VI turns the transistor ON  The load is connected between SIC and VI  The collector current that  can circulate will produce a voltage of around 1V on this pin     If on the contrary a logic  1  is written  then the transistor is turned OFF and the voltage at the SIC pin will  be the same as that on VI   The output is capable of controlling a 12V or 24V relay  It can supply a current of around 100mA     Colour      nom    Output suppl      SC           SIC Output collector  Output transmitter       EXAMPLE OF CONNECTING A BUZZER OR RELAY     VCC   12V or 24V pink wire    LPR 3011 Vr  Relay or buzzer  SIC with integrated oscillator       SIE             GND blue wire    12 21    BALOGH SA  189 rue d   Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 4465650
11. lable frequency  band        19 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    7 MAINTENANCE    7 1 PERIODIC MAINTENANCE    The LPR 301 1 RS reader requires no periodic maintenance    The reader should be regularly cleaned in order to avoid dust and dirt accumulating on the  case     The reader should be regularly checked for   e cracks in the case  e Fixing screws correctly tightened  e cables correctly connected with no injuries    7 2 REPLACEMENT  If the LPR 3011 RS needs to be replaced  the procedure is as follows     e Turn off power supply  and disconnect all cables    e Record the reader orientation  azimuth and elevation   then remove the mounting  screws and dismount the unit     e Place the new unit in the same position  insert the mounting screws and tighten  correctly     e Reconnect all cables and power up the reader     7 3 RECYCLING    All decommissioned readers must be returned to BALOGH SA for appropriate recycling  according to directive DSE     20 21    BALOGH SA  189 rue d   Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44656500 Fax  33  0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subje
12. no  of transmissions in interrupt mode  Digital Output  20   motusd   o           Copy buzzer   1            readings   2     a hot          Copygreented   4             L             tegbeeylw   6           owe 7    reserved ET 2 2ekbt2et    Rane  22  01093   ows   3                              resevea  23     ooo oo    Digtalnpu  24  inactive   0   x   0g                ane   1     Tagreadngvalidaio      reseved  a  AS S    reserved  26       I       O    Co  N         iN      Hoppingtime  27      100ms   0                   0 0    Lo      19 J  1   Oe           80 J  2   o       80    83 J  x       4                400 CS ooo ooo         800 un ee ee     Test  DL 7 EC ES         Configuration parameters    Refer to interface manual for complete description  reference LPR3011  IM x y EN     18 21    BALOGH SA  189 rue d Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    6 CHANNEL FREQUENCIES    Channel number 0 is used for the frequency hopping mode  In this mode  the reader operates  for a certain time on one channel  then hops onto another channel  and so on  The sequence is  pseudo random and the time the reader spends on any particular channel is determined by the   Hopping period  parameter  The frequencies channels used cover all of the avai
13. rs to the issue or version number    L refers to the language of the manual    1 3 DOCUMENT STATUS SHEET      Version   Date   Description of changes                               1 0 11 02 2008   Creation   1 1 15 02 2008   Update and complement of information   1 2 28 03 2010   Correction on parameter table   1 9 29 03 2012  Update and complement of information  1 4 NOTE    The contents of this manual are subject to changes without notice   BALOGH cannot be held responsible for the consequences of any error  omission  or incorrect  interpretation of the information provided     4 21  BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    2 DESCRIPTION OF READER    2 1 GENERAL DESCRIPTION    L PR3011 readers will identify HyperX    tags on the fly at distances of up to 2m    The reader is a compact all in one device  The weatherproof housing of sober design contains  all the functional elements of the reading unit  Antennas  Microwave generator  receiver  CPU  and communication interface     The reader can be mounted directly onto any panel  even a metallic one   The main characteristics are as follows     Dimensions   174x108x29mm   Weight  0 7 Kg   Cover Color  Grey RAL 7035   IP65 protection   Power requirements  between  12Vdc
14. s C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    e CONNECTION TO A NETWORK  O Topology    The preferred topology is the bus     l  l  l  l          4  Ue e  i  7 i i y          H   line matching resistor  added if needed    Networking of readers    simplex connection       R  line maiching resistors   added if needea    Networking of readers     half duplex connection    The length of the derivation should be as short as possible     30 cm    The maximum length allowed can be calculated from the cable characteristics using the equation below   L  lt  1300   Zo x Cj  Lin metres  Zo in ohms and C  in pF m    O Line biasing    For RS 485  line biasing may prove necessary and must be done externally and only at one point on the  line    The line         is connected to  5V via a 4K7 resistor    The line         is connected to OV via a 4K7 resistor     15 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    4 4 2 DIGITAL INPUT    pink  E    white  GNE       Circuit Diagram of digital input    There is one digi
15. t  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    2 4 COMMUNICATION INTERFACES    This reader can be used in place of most conventional models  both contact and contact less     Communication with a  host  system takes place using the following standardized links   e Open collector  DATA CLOCK  WIEGAND 26bits  e Serial asynchronous  RS232  RS422 or RS485    For the RS links  full two way communication is possible using the MODBUS    protocol   Note  all the interfaces are not available simultaneously     These readers are also equipped with   e An opto coupled digital output that can be configured to switch either via a command  sent from the host or automatically at each tag identification   e An opto coupled digital input which can be used to globally enable or disable tag  reading     The readers must be powered with 12   24 VDC  A special detector ensures that if the input  voltage is too low then the reader will not power up  Powering the reader from a mains outlet  requires an AC adaptor of at least 10W     2 5 OVERALL DIMENSIONS    108 mm    ww pZ        i ee ee    3 INSTALLING THE LPR READER    This reader includes a removable mounting plate on its back   This plate is provided with 4x slots  6mm x 10mm for attaching the reader on a flat surface  or  on any support made on request  screwed on a drilled metallic profiles for example      6 21   
16. tal input  It is galvanically isolated from the reader by means of an optocoupler     An open contact or positive voltage of less than 5 V applied to pin El will produce an internal logic status  of    1     the bit E1 of the status word is 1     A voltage of between 5V and 24V will produce an internal status of  O   the bit E1 of the status word is O   The voltage applied must not exceed 24V in normal circumstances     This input is read and updated by the software every 10ms     This input can enable or disable the reading of tags  for example if the input is controlled by a ground loop  detector circuit      gt  Input 1 is active high  Vin  gt  5V        colour       name    Input signal       16 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    5 READER PARAMETERS    All of the parameters in the table are saved in the non volatile memory  The number in the    second column gives the order in which they are memorised  The parameters can be modified    by the user using RS link and appropriate MODBUS commands     Parameter Function Internal  EEE EE      reserved       rl seem  ENDE M  Ean       reserved a    Issuer code no filtering  MEN    on 1st   onistcode      p from EEPROM a up to 2 codes in EEPROM    issuercodesi
17. together  see the frequency table at the end of the  manual      Do not install a reader close to a source of potential interference in order not to degrade its  performance     The indicated reading distance is a nominal value and the actual range is usually greater   However there are several sources of interference present in the environment which may affect  reader performance and which must be taken into account  Quite often this interference cannot  be removed and results in a reduced reading range     The main sources of interference are       Devices operating in the same band of frequencies  such as wireless  communications  WLAN       Mobile phones and smartphones      Microwave ovens      Fluorescent lighting      Metal objects such as gratings  fences or heat reflective vehicle windscreens     7 21    BALOGH SA  189 rue d Aubervilliers C P 97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44 65 6500 Fax  33  0 1 44 65 65 10 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    LPR 3011 RS  4 CONNEXION OF READER LPR 3011 RS    HYPER X    reader LPR 301 1 RS series are mono block readers inside a waterproof casing  adapted for outdoor installation    They come in the form of a rectangular casing with light indicator at the front and 2 cables at the  the bottom        TTL cable HS cable    8 21    BALOGH SA  189 rue d Aubervilliers C P  97 75886
18. ual to the line impedance  120 ohms  is  usually necessary  For cases in between  there is no clear cut rule and depends on individual installations   combination of baud rate  line length  cable quality  emitter receiver characteristics      e ELECTRICAL CONNECTION    For an RS 232 link   wiring up is straightforward  the TX and RX lines of both equipments are connected  together    For a differential link  RS 422 or RS 485   the polarities are not always clearly defined  Normally the          line is at a high level at rest and is active low  For the         line  the opposite is true  This is the case for the  differential interface for the HYPERX readers  However if the differential signals are generated by a  converter acting on RS 232 signals  then the         line can be at a low level at rest and active high  In this  case  the         line of one equipment must be connected to the     line of the other equipment     e OV CONNECTION    Whether this is necessary or not  depends on the installation  For RS 232 links  distances are necessarily  short so both equipments will have the same ground potential  in which case the OV references should be  connected  For differential links  the OV connection is not always necessary  For large link lengths  local  equipment ground potentials maybe different  so a OV connection will cause ground currents to flow   Differential links also tolerates a large common mode voltage difference     14 21    BALOGH SA  189 rue d Aubervillier
19. ze  6    3   3   3      D ee ee ee PS    indicatorlight  7  NORMAL   o    x J       Lo    TEST  o od  o o do oo o    mesagemode  8      0   o   0            oo  o  oot pod reserved 0 0     Lo    2    2 J  ES    D  RE PE PE PS E    functiontags  9  OFF   o   x   Notimplemented        L  owo    t1      pd eee  reserved  top    ooo Qoo   RS type interface  11  RS232   oP   Lo    R d  o S o   o     Raa     2 jj   00   COtypeineface   12  notused   o J x      y O  pT   soie   3    1 EE  NM QN    ISO2 var    NN 2 foo  Po   3    a  preamble  Pa Pte REN  address    Datarate  14      9600   o    x    St    Lo   w   2    0 0 0 5 5 o      o    aa PS O    BALOGH SA  189 rue d Aubervilliers C P  97 75886 PARIS Cedex 18 FRANCE  Tel  33  0 1 44656500 Fax  33 0 1 44 65 6510 Internet  http   www balogh rfid com  PLC with a Board of Directors and a capital of 800 000       RCS B PARIS 582 061 073    Subject to amendment     Doc ref  LPR3011RS UM 1 3 EN    17 21    e     me me o RS   value value     Character format   15   _ 8 bit no party       0   x   O         Zbiteven parity   1      zeteddpady   2 O           ASCII       o   x   format  test   with header   BEEN code only   1     ASCII withoutheader         resemved   2      ommat TIME DESIGNA           mous   3     J  O    Polling interr  i7  Interrupt   o   x     2 poling ft    MTM EC ots   0                        E  2p cue cL oW O             3    NO    Lo os    2    x        2 2 2 247   MEE CE UN Re  o  Poo 29   EE  tto4   1t04   1   
    
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