REnex Technology PT209-0104002 2.4GHz DSSS Wireless Modem User Manual

REnex Technology Limited 2.4GHz DSSS Wireless Modem

Contents

User Manual

                                                    PT-209G/219G User Manual Version 2.2 REnex Technology Limited Room 601-603, 6/F., 1 Science Park East Avenue, Hong Kong Science Park, Pak Shek Kok, N.T., Hong Kong  Phone: +852 2607 4088 Fax: +852 2607 4099 www.renextechnology.com Purpletooth®      2.4GHz Wireless Modem      Direct Sequence Spread Spectrum
 - ii -          This document is produced for users of Purpletooth® PT-209G/219G, the spread spectrum wireless  modem  from  REnex  Technology  Limited.    It  covers  the  operating  principles  and capabilities of Purpletooth® PT-209G/219G.  It is highly recommended to read this document before using Purpletooth® PT-209G/219G in order to operate it correctly and have its best performance.   WARNING  Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.   This manual contains information of proprietary interest to REnex Technology Limited.  It is supplied  in  confidence  to  purchasers  and  other  authorized  users  of  Purpletooth®  PT-209G/219G  Wireless  Modem.    By  accepting  this  material,  the  recipient  agrees  that  the contents will not be copied or reproduced, in whole or part, without prior written consent of REnex Technology Limited.  The  electronic  equipment  described  in  this  manual  generates,  uses,  and  radiates  radio frequency  energy.  Operation  of  this  equipment  in  a  residential  area  may  cause  radio interference,  in  which  case  the  user,  at  his/her  own  expense,  will  be  required  to  take whatever measures necessary to correct the interference.            Information in this document is subject to change without notice. REnex Reference Number: R-001-4000-018 Printed Date: November 2004    © 2001-2004 REnex Technology Limited.  All rights reserved.    Purpletooth® is registered trademark of REnex Technology Limited. Microsoft and Windows are registered trademarks of Microsoft Corporation. HyperTerminal is copyrighted by Hilgraeve Inc, and developed for Microsoft.  All  other  products  mentioned  in  this  document  are  trademarks  or  registered  trademarks  of  their  respective holders.
 - iii -      FCC Information  This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and  2)  this  device  must  accept  any  interference  received,  including interference that may cause undesired operation.   NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.  These limits are designed to provide reasonable protection against harmful interference in a  residential  installation.    This  equipment  generates,  uses  and  can  radiate radio frequency energy and, if not installed and used in accordance with the instructions,  may  cause  harmful  interference  to  radio  communications.  However, there is no guarantee that interference will not occur in a particular installation.    If  this  equipment  does  cause  harmful  interference  to  radio  or television  reception,  which  can  be  determined  by  turning  the  equipment  off and  on,  the  user  is  encouraged  to  try  to  correct  the  interference  by  one  or more of the following measures:  --  Reorient or relocate the receiving antenna. --  Increase the separation between the equipment and receiver. --  Connect the equipment into an outlet on a circuit different from that to which the receiver is needed. --  Consult the dealer or an experienced radio/TV technician for help.   RS-232 DB9 shielded cable with ferrite must be used with this unit to ensure compliance with the Class B FCC limits.                  CAUTION: The model number PT-209G and PT-219Ghave  maximum  transmitted  output  power  of  0.07Watt.  It is recommended that the transmit antenna be kept  at  least  20  cm  away  from  nearby  persons  to satisfy FCC RF exposure requirements.  The antenna and  transmitter  must  not  be co-located  or operating in conjunction with any other antenna or transmitter.
 - iv -       CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.  DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
 - v -                WARRANTY REnex Technology Limited (REnex) warrants this product to the original owner purchased directly from REnex or an authorized distributor to be free of defects and workmanship for a period of one year from the date of purchase.  REnex’s obligation under this warranty is limited to replacing or repairing defective parts of our  product  under  normal  use  and  service.    REnex  is  not  liable  for  any  damage,  which results  from  abnormal  use,  abuse,  improper  operation,  accident  or  inability  to  use  this product.
 - vi -        Contents   WARRANTY.............................................................................................................................................. v 1. General.......................................................................................................................1 1.1 Product Overview ............................................................................................................................ 1 1.2 Features ........................................................................................................................................... 1 2. Physical/Electrical Attributes ...................................................................................2 2.1 PT-209G/219G Physical Layout ....................................................................................................... 2 2.2 LED Indications............................................................................................................................... 3 2.3 RS-232 DB-9 Connection................................................................................................................. 4 3. Setup PT-209G/219G.................................................................................................5 3.1 Setting up Connections..................................................................................................................... 5 3.2 Checking the Link............................................................................................................................ 5 3.3 Using the USB Port.......................................................................................................................... 6 A. Technical Specifications ............................................................................................7 B. Antenna Specifications..............................................................................................8
   1  1.1  Product Overview The Purpletooth® PT-209G/219G Direct Sequence Spread Spectrum (DSSS) Wireless Modem is a high performance  wireless  modem.    It is designed to provide a  long  distance,  high  data rate and robust platform for applications.  It offers data communication capabilities to application equipment via standard interfaces.   Neither additional hardware nor software modification is required in the application equipment to work with PT-209G/219G.  By using a pair of PT-209G/219G modems, users  can  transfer  data  between  almost  all  types  of  equipment  that  use  asynchronous  serial interfaces.  The small size and superior performance of PT-209G/219G make it an ideal solution for many applications.  Typical examples are:   Traffic control Remote monitoring Telemetry Remote camera/robot control Mobile video transmission Environmental monitoring Emergency rescue Premises security Logistics  PT-209G is the standard version that conforms to the FCC, CE and China SRRC regulations.  While PT-219G is an enhanced version that bears the UL Class 1 Division 2/ATEX Group 2 Category 3 safety classification in addition to the FCC, CE and China SRRC radio approvals.  1.2  Features Key features of PT-209G/219G: Operates in license-free frequency band Supports serial data I/O with handshaking and hardware flow controls Supports high speed and high throughput data transfers via USB and Ethernet ports Provides  error-free  data  connections  via  built-in  CRC-16  error  detection  and automatic re-transmission Offers high data rate and support long distance Adopts  the  advanced  Direct  Sequence  Spread  Spectrum  (DSSS)  technology  to provide high interference immunity to protect on-air data from signal interferences and malicious data trappings Supports various data applications with efficient communication protocols Easy to use, plug-and-play without specific software requirement     1. General NOTE1: This manual has been provided as a guide and reference for installing and using PT-209G/219G wireless modems.  It is assumed that users  of  PT-209G/219G  modem  have either  system  integration  or system design experience.
   2  2.1  PT-209G/219G Physical Layout The following diagrams illustrate the front and rear panels of PT-209G/219G.               (a) Front panel                   (b) Rear panel  Figure 1. Front and rear panels of PT-209G/219G modem. 2. Physical/Electrical Attributes RS-232LANUSB⊕ 12V Antenna PWROKTxRxCHARGINGONOFF CNFGANT.
   3  Photos of PT-209G/219G are depicted in the following figures:                     Figure 2. Photos of  PT-209G/219G modem.  2.2  LED Indications Five LED’s are installed in PT-209G/219G modem as  shown in Figure 1  (a).  They indicate the status of the modem and their definitions are listed in the following table:  Table 1. LED indications  On  Off  Dim  Flash Rx LED  -  No data receive  Data link in active  Receiving data Tx LED  -  No data send out  Data link in active  Sending out data  OK LED*  Procedure success  No procedure/ procedure failed  -  Procedure in progress Power LED  -  Power down  Power up  In power saving mode Charging LED  Red: Charging; Green: Fully charged  * Procedure means the slave registration/de-registration procedures.  It is off in normal operations.
   4  2.3   RS-232 DB-9 Connection Pin assignments of the RS-232 port are as follows:  Table 2 Pin assignments of the RS-232 port RS-232 port pin no.  Pin name  Signal direction 1  DCD  - 2  RXD  Output 3  TXD  Input 4  DTR  Input 5  GND  - 6  DSR  Output 7  RTS  Input 8  CTS  Output 9  RI  -
   5   3.1  Setting up Connections PT-209G/219G modems are shipped from REnex with a pre-configured setting.  They can operate “out of the box”.  Hence, the only thing users need to do is to make the appropriate connections between the modem and their equipment via the RS-232 port, the USB port or the Ethernet port, and then power up.  The master and slave(s) shall communicate properly.  For using the USB port, you may  need  to  install  a  driver  for  the  first  time  plugging  in  your  system.    Please  follow  the “Purpletooth® Family USB Driver Installation Guide” for the installation procedure.  3.2  Checking the Link After finishing the physical connection setup mentioned above, PT-209G/219G should be ready.  If the performance of the communication link is not satisfactory or any linking problem is found, the following steps may help you locate the problem.          Figure 3. Basic network mode.  1.  Connect each modem to a serial port of a PC using direct RS-232 cable. 2.  Start  a  terminal  program  such  as  Hyper  Terminal  (http://www.hilgraeve.com,  it  may  be found in Microsoft Windows OS) for each serial port.  Make sure the baud rate and  data format settings agree with those of PT-209G/219G. 3.  Characters typed at the master’s terminal should appear at that of the slave’s and vice versa. 4.  The TX LED should flash during transmitting data to the RF link. 5.  The RX LED should flash during receiving data from the RF link. 6.  Adjust the  modem  separation  and  the antenna  direction  to  locate  positions  with the  best performance.        3. Setup PT-209G/219G NOTE  2: PT-209G/219G  is  highly  sensitive  to  obstacles  in  its communication path.  Make sure the communicating modems are in line-of-sight.  Otherwise, the performance may drop significantly. NOTE 3: Antenna height is a critical factor.  Try to put the antenna at a position as high as possible.  Slave Master
   6  3.3  Using the USB Port An Internet access driver, called NDIS-USB driver, is provided in the CD-ROM inside the delivery package.  You can follow the installation guide in the CD-ROM to install it.  After that, you can access the Internet via a networked PC and a pair of PT-209G/219G as illustrated below:                  Figure  4.  A  PC  or  an embedded  system can  access  the  Internet  via  a  pair  of  Purpletooth®  modems  and another PC with NDIS-USB driver installed.  In the recent release, the Windows 2000 and Windows XP versions of NDIS-USB driver are provided.  Please refer to “Purpletooth® Family USB Driver Installation Guide” for the installation and usage details.   Slave Master Internet PC with NDIS-USB driver installed AND an ordinary Ethernet adapter connected to Internet PC or embedded system with NDIS-USB driver installed LAN cable  USB cables Purpletooth   Purpletooth  Wireless connection
   7     PT-209G/219G RF Frequency  2.400 to 2.4835 GHz, carrier at 2.4476 GHz Spread Spectrum  Direct Sequence (DSSS) Processing Gain  11.4 – 17.4 dB Antenna  Dipole antenna (RO-IK-0504 from Radiall), 50 ohm load / *Magnet mount antenna (TQC-2400AIP from Kenbotong Communication Ltd.) / *Omni-directional antenna (HTQ-2.4-10 from Xian Haitian Antenna Tech. Co., Ltd.) Operating Range  Up to 5 km (15 km for HTQ-2.4-10 antenna) in line-of-sight Maximum E.I.R.P.  100 mW (20 dBm) Receiver Sensitivity  -96 dBm at 10-6 BER RF Channel Bandwidth  32 MHz (Null-to-null) Communication Method  Time division duplex (TDD) Network Protocol  Purpletooth® Adaptive Intelli-Polling Error Control   CRC and ARQ Baseband Modulation  BPSK and QPSK Channel Data Rate  256 Kbps, 512 Kbps, Up to 1 Mbps I/O Interface  RS232, USB# and RJ-45 ports Supply Voltage  12 V Maximum Current Consumption  535 mA at 7.4 V during transmission 310 mA at 7.4 V during reception 85 mA at 7.4 V during sleep Battery  Rechargeable, 7.2V/1550mAh Operating Temperature  -20 oC to 70 oC, (-4 oF to 158 oF) Humidity  20 % to 90 % non-condensing Dimensions (L × W × H)  157 × 76 × 45 mm (without antenna) Weight  512 g *TQC-2400AIP and HTQ-2.4-10 are optional for US shipment only. # USB port cannot be used in hazardous environment under UL/ATEX classifications. A. Technical Specifications
   8    Model: RO-IK-0504  B. Antenna Specifications Electrical Item  Specifications  Remarks Type of antenna  Dipole antenna   Frequency range  2.40 ~ 2.48 GHz   Electrical length  1 / 2 λ  Nominal impedance  50 Ohm   Polarization  Vertical   V.S.W.R  Less than 2.0   Peak gain  1.5 dBi   Mechanical Item  Specifications  Remarks Element  RG-316 cable   Sleeve  Urethane  Black  Base  Nylon 66  Black Connector  SMA male  Ni plate Antenna total length  168 ± 3 mm
   9  Model: TQC-2400AIP  * Manufacturer: Kenbotong Communication Ltd. Electrical Item  Specifications Type of antenna  Magnet mount antenna Frequency range  2.400 ~ 2.483 GHz Nominal impedance  50 Ohm Polarization  Vertical V.S.W.R.  Less than 1.5 Gain  7 dBi Mechanical Item  Specifications Length  300 mm Mount  90 mm diameter magnet Cable  300 mm Connector  SMA male
   10  Model: HTQ-2.4-10  Antenna radiation pattern diagrams:             * Manufacturer: Xian Haitian Antenna Technologies Co., Ltd.  Electrical Item  Specifications Type of antenna  Omni-directional antenna Frequency range  2.400 ~ 2.500 GHz Nominal impedance  50 Ohm Polarization  Vertical V.S.W.R  Less than 1.4 Gain  10 dBi Mechanical Item  Specifications Length  824 mm  Diameter  φ20 mm Cable  500 mm Connector  SMA male Horizontal direction  Vertical direction

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