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RIM 902M Integrator Manual

Oem radio modem
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  • Page 2 © 1999, RESEARCH IN MOTION LIMITED Research In Motion and RIM are registered trademarks of Research In Motion Ltd. Mobitex is a trademark of the Swedish Telecommunications Administration. MS-DOS is a registered trademark, and Windows is a trademark, of Microsoft Corp.

  • Page 3: Fcc Compliance Statement (Usa

    FCC Compliance Statement (USA) FCC Class B Part 15 This device complies with Part 15 of 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.

  • Page 4: Industry Canada Certification

    Industry Canada Certification This device complies with Industry Canada RSS 119, under certification number TBD. IC Class B compliance This device complies with the Class B limits for radio noise emissions as set out in the interference-causing equipment standard entitled “Digital Apparatus,”...

  • Page 5: Table Of Contents

    Contents FCC Compliance Statement (USA) ........i Industry Canada Certification ..........ii About this guide..............v Introduction............... 1 Radio performance..............1 Mobitex network technology............4 FCC radio frequency exposure rules..........5 Getting started............9 Test board overview..............10 How to connect the test board.............11 The MENU diagnostics tool ............12 Mechanical integration ...........
  • Page 6 Introduction to antenna terminology ..........46 Positioning the antenna..............49 Shielding ...................50 Specifications ..............51 Glossary of terms ..............53 Index..................55...

  • Page 7: About This Guide

    About this guide This document is a guide to integrating the RIM 902M OEM radio modem into a variety of devices such as laptop computers, handhelds, vending machines, point-of-sale terminals, vehicle-based mobile terminals, and alarm system. Topics covered in this guide include:...

  • Page 9: Introduction

    Introduction With the introduction of the RIM 902M, Research In Motion (RIM) has set a new standard for radio modem performance. The RIM 902M is unrivaled in the key areas of receiver sensitivity, ouput efficiency, noise immunity, and power consumption. Its small size and weight make it suitable for virtually any wireless data application, including handheld devices and mobile terminals.
  • Page 10 RF shielding Powerful and efficient transmitter When necessary, the RIM 902M can supply a full 2.0 watts to the antenna. However, the RIM 902M quickly decreases the output power when it is close to a base station to as little as 0.06 watt –...
  • Page 11 Introduction – Radio performance Low power requirements If you are planning to integrate the RIM 902M into a handheld or portable device, battery life is a critical issue: your customers will insist on long lasting devices without heavy battery packs. The RIM 902M sets a new power consumption standard for Mobitex radio modems.

  • Page 12: Mobitex Network Technology

    Mobitex networks in the United States, Canada, Korea, Chile, and Venezuela operate in the 900 MHz range, and are therefore directly compatible with the RIM 902M OEM radio modem. Currently, Mobitex networks in other countries operate at other frequencies, such as 400 MHz.

  • Page 13: Fcc Radio Frequency Exposure Rules

    FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields, OET Bulletin 65 and its Supplement C , all integrations of the RIM 902M OEM unit are subject to routine environmental evaluation for RF exposure prior to equipment authorization or use.
  • Page 14 10 g of tissue. The limits for Occupational/Controlled exposure are more relaxed, i.e., 8 W/kg for partial body and 20 W/kg for hands, wrists and feet. The 1.6 W/kg limit applies for most of RIM OEM integrators. The limit for MPE is 0.6 mW/cm at 900 MHz.
  • Page 15 If the final device configuration cannot be controlled so as to limit the user distance to the antenna then the device needs to have an RF radiation hazard label warning the user to keep away from the antenna by the specified distance. RIM 902M OEM Radio Modem – Integrator’s Guide...

  • Page 17: Getting Started

    Years of intense R&D have spawned several tools that have been used internally to help streamline our own development process. We have included many of these tools with the RIM 902M OEM Developer’s Kit. The purpose of the Kit is to accelerate radio integration and to help system designers evaluate the RIM 902M.

  • Page 18: Test Board Overview

    It is designed to help you quickly interface the RIM 902M to a standard PC (through a COM port) or a terminal device with an RS-232 serial port. The test board also provides access points to the radio’s serial communication port, which allows you to monitor activity with a logic probe, multimeter, or oscilloscope.

  • Page 19: How To Connect The Test Board

    Now that you are familiar with the components and functions of the test board, you are ready to connect the RIM 902M radio modem to an antenna and to a PC (or some other computing device with an RS-232 serial interface). To do this, you will use the test board and cables supplied with your RIM 902M Developer’s Kit.

  • Page 20: The Menu Diagnostics Tool

    The power switch on the test board is connected to the TURNON line of the RIM 902M radio modem. To determine whether the radio is on, look at the LED marked ONI. It is lit when the radio is on.
  • Page 21 Setup The following instructions assume that your RIM 902M is connected to a PC running a terminal program, such as Windows HyperTerminal. The MENU utility is based in the RIM 902M’s firmware, so HyperTerminal is the only software required to use it.
  • Page 22 MAN stands for Mobitex Access Number, which is a unique number that identifies each Mobitex radio modem. The MAN is used for addressing packets. The screen will also display a Radio Serial Number, which is unique to each Integrator’s Guide – RIM 902M OEM Radio Modem...
  • Page 23 Status value that you see. For example, status value B403 would simultaneously describe states A000, 1000, 0400, 0001, and 0002, as described below. RIM 902M OEM Radio Modem – Integrator’s Guide...
  • Page 24 Possible causes include lack of network coverage, wrong network selected, or the battery level is too low. 0002 This is a new RIM 902M being used for the first time. No action is necessary. 0008 The radio modem has exhausted its internal memory. This should not happen under ordinary use.
  • Page 25 Enter key. Pressing the Esc key will cancel the network set-up command. The screen below shows what would happen if you typed in 2 and then pressed the Enter key. The values shown beside Network, UpFreq, DoFreq, and Base/Area are different. RIM 902M OEM Radio Modem – Integrator’s Guide...
  • Page 26 If you get the message indicating that the Status MPAK was sent, but you did not get one that it was received, then you are in coverage but your RIM 902M radio modem has probably not been activated by your network operator, and the network will not send the MPAK back to the radio.
  • Page 27 The screen will clear and you will be informed that the radio has been reset. You can safely disconnect the radio and close your terminal program once you have seen this message. RIM 902M OEM Radio Modem – Integrator’s Guide...

  • Page 29: Mechanical Integration

    Mechanical integration This chapter provides information about the RIM 902M that will be useful in determining the physical positioning of the radio modem within an application. Environmental properties and testing, physical properties, mounting methods, and connector information are presented. Environmental properties During environmental testing, RIM takes samples of its radio modems and subjects them to a variety of harsh conditions.

  • Page 30: Physical Properties

    Mechanical integration: Physical properties Storage temperature The RIM 902M OEM radio modem may be stored at a temperature from -40 to +85 C (-40 F to +185 Operating temperature The RIM 902M is designed to operate between -30 C to +70...
  • Page 31 Mechanical integration: Physical properties RIM 902M OEM Radio Modem – Integrator’s Guide...

  • Page 32: Mounting Methods

    Mechanical integration: Mounting methods Mounting methods The RIM 902M OEM radio modem may be securely fastened using a variety of methods. The operating environment must be carefully considered when choosing a mounting option. For example, extreme temperature or heavy vibration may require a special mounting solution. It is important to ensure that the RIM 902M remains securely attached in the environment where it will be used.
  • Page 33 Mechanical integration: Mounting methods Tie wraps Tie wraps can be used to as a secure but non-permanent means of attaching the RIM 902M to a surface. Typically, each tie wrap passes through a hole drilled RIM 902M OEM Radio Modem – Integrator’s Guide...
  • Page 34 Mechanical integration: Mounting methods into the surface on either side of the RIM 902M. This allows the radio to be attached to a shell, a PCB, or some other mounting surface. If using tie wraps, ensure that the surface beneath the RIM 902M is flat.

  • Page 35: Cables And Connectors

    The minimum cable length available is 30 mm (1.181”). The serial cable supplied with the RIM 902M Developer’s Kit is a Type D 4” long Flat Flex Cable Jumper in 1.00 mm centerline spacing, as illustrated in the following mechanical drawing: RIM 902M OEM Radio Modem –...
  • Page 36 The antenna cable should have low loss, an impedance of 50 , and an MMCX jack that mates with the RIM 902M’s MMCX plug. The other end of the cable can be any connector you choose, as long as it has an impedance of 50 .
  • Page 37 ) cable 133REEZ4-12-S2/1216 8” cable, straight MMCX to SMA 133REEZ4-12-S2/1699 8” cable, right-angle MMCX to SMA The following cable is included with the RIM 902M Developer’s Kit: Contact: Huber & Suhner Huber & Suhner Essex Junction, VT, USA Kanata, Ontario, Canada...

  • Page 39: Power Requirements

    Power supply parameters The RIM 902M requires a clean, stable 4.15 to 4.75 volt source that is capable of delivering a one-second burst of up to 1.7A when required by the transmitter.

  • Page 40: Batteries

    Off current consumption Batteries When integrated into a handheld device, the RIM 902M can be powered by batteries. This is a proven technology that is easily available and eliminates the need for power supply components such as voltage regulators.
  • Page 41 The cells chosen must be able to meet the load specifications of the RIM 902M. Specifically, they must be able to provide 1.7 A (at 4.5V) for transmission.

  • Page 42: Plug-In Supplies

    RIM 902M load specifications. These should have a value of 20 volts and be placed on the supply side of the regulator circuit. RIM recommends a supply capable of providing 4.5 V and rated for 2.5 A peak current.

  • Page 43: Interface Specification

    If you are using a MASC application with another Mobitex radio and are now migrating to the RIM 902M, you do not need to rewrite the application in RAP – simply continue using the MASC application. If you are writing a new application for the RIM 902M, you will need to choose whether to use MASC or RAP as your link-layer protocol.
  • Page 44 RIM 902M is very long. Advances in mobile computing technology have helped to ensure that serial links are short enough to make bit errors extremely unlikely.

  • Page 45: Pin Descriptions

    3.0 volt interface; they are not 5.0 volt tolerant. This section describes the purpose of each of the 22 lines that comprise the serial interface of the RIM 900 OEM radio modem. The symbol ~ before the label indicates that line is an active low digital signal.
  • Page 46 CTS is low and ONI is low, then the radio is not ready to receive data because it is off. When ONI is low, all inputs to the radio should be held low or disconnected. Otherwise, power will be consumed and wasted. Integrator’s Guide – RIM 902M OEM Radio Modem...
  • Page 47 Transmit Indicate The active (radio transmitting) state of this line is high. This output from the radio that is asserted while the RIM 900 is transmitting a packet to the network base station. TRI can be used to provide real-time visual feedback to the user that the radio is transmitting packets.
  • Page 48 This is an output from the RIM 900 to the computing device. This line is asserted low by the RIM 900 to indicate that it is ready to receive data from the computing device. When this line is high, any data sent from the computing device to the RIM 900 may be lost.
  • Page 49 The active (data terminal ready) state of this line is low, and indicates that the computing device is ready to receive data from the RIM 900. De-asserting this line high will turn communication off; the RIM 900 would not attempt to deliver data to the computing device until ~DTR is again asserted low.

  • Page 50: How To Turn The Radio On And Off

    Turning the radio on To turn the RIM 902M on, the software should first check the ONI pin. If ONI is high, but TURNON is being held low, then your application has recently requested the radio to shut down, and the radio is performing shutdown operations and should not be disturbed.

  • Page 51: Interface To An Rs-232 Device

    The MPAKs will be lost when the unit enters shutdown or is turned off. A controlled shutdown is necessary to allow the RIM 902M to tell the Mobitex network that it is off air. Interface to an RS-232 device The RIM 902M serial interface operates at 3.0V, making it compatible with...
  • Page 52 Interface specification: Interface to microprocessor Integrator’s Guide – RIM 902M OEM Radio Modem...

  • Page 53: Antenna Selection

    The performance of an antenna depends on its configuration and environment: the same antenna will behave differently in one device than in another device, even if both devices use the same RIM 902M radio modem. For example, magmount antennas include a magnetic base that allows the antenna to clamp onto a metal surface.

  • Page 54: Introduction To Antenna Terminology

    Frequencies of operation: 896 to 902M MHz (transmit) 935 to 941 MHz (receive) Acceptable return loss: VSWR < 2.0 or RL <...
  • Page 55 The power output of the RIM 902M is 62 mW to 2.0 W at the antenna port, and the antenna gain (or loss) will result in an increase (or decrease) in this value.
  • Page 56 = 3 x 10 m/s by the center frequency f = 913.5 MHz. Because the RIM 902M’s receiver is so sensitive, this value includes a 5 MHz bias toward the transmit frequencies to help balance the uplink and downlink between the radio modem and the network base station.

  • Page 57: Positioning The Antenna

    This is achieved by positioning the antenna vertically upward when the RIM 902M is in use. In small, hand-held devices, it may be convenient to design the unit in such a way that the antenna folds out of the way when not in use.

  • Page 58: Shielding

    Consequently, you do not need to provide any additional RF shielding between the RIM 902M and a computing device. In fact, it would be more important for the power supply to the RIM 902M to be free of high-frequency electrical noise, than to provide additional RF shielding.

  • Page 59: Specifications

    Specifications The following is a summary of the RIM 902M OEM radio modem specifications. Power supply & typical current usage Single power supply; operating range: 4.1 to 4.75V DC Single 3.0V logic line to turn on/off Typical off current consumption: less than 10 Battery save stand-by mode: 0.2 mA (at 4.5V)

  • Page 60: Other Features

    Tested to IEC 68-2-6 Part 2 for vibration Metal case, available in a variety of materials Operating temperature tested to: -30°C to +70°C (at 5-95% relative humidity, non-condensing) Storage temperature: -40°C to +85°C Integrator’s Guide – RIM 902M OEM Radio Modem...

  • Page 61: Glossary Of Terms

    A computer without the normal display, keyboard, and disk drives of a PC. Flexible Printed Circuit. The serial communication cable on the RIM 902M is made using this type of flat multi- conductor wiring. Gain In this document, refers to increase/decrease in radiated power.
  • Page 62 The RIM 902M is designed to be embedded in OEM terminals, PCs and data gathering equipment, and as such the equipment it is embedded in will not normally carry RIM’s name. The Open Systems Interconnection model allows different...

  • Page 63: Index

    Index Antenna MAN • 53 efficiency • 48 MASC • 53 gain • 46 MOA • 4 gain, maximizing • 48 Mobitex • 53 physical location • 49 overview • 4 return loss • 47, 54 packet switching • 5 shielding •...
  • Page 64 Startup controlling • 43 turning the radio on • 42 features • 1 TURNON • 38 output power • 2 physical size • 3, 22 RS232 • 54 Temperature range • 22 Integrator’s Guide – RIM 902M OEM Radio Modem...

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