GE MDS DS-ROR220 MDS ROR220 DATA TRANSCEIVER User Manual users manual

GE MDS LLC MDS ROR220 DATA TRANSCEIVER users manual

Contents

users manual

Integration Guide217-222 MHz Licensed OEM TransceiverROR ModuleMicrowave Data Systems Inc. MDS 05-4132A01, Rev. A MARCH 2004(PRELIMINARY)
MDS 05-4132A01, Rev. A ROR Transceiver Module iii TABLE OF CONTENTS 1.0 INTRODUCTION .........................................................................7 1.1 Modem Speed versus Channel Bandwidth ......................................71.2 Frequency Coverage ........................................................................7 2.0 INSTALLATION DESIGN .............................................................8 2.1 Antennas and Feedlines ..................................................................9Antennas ............................................................................................9Feedlines ..........................................................................................102.2 Primary Power (6-12 Vdc) ..............................................................10DC Supply Connection .....................................................................10Sleep Mode (Energy Conservation) .................................................10Shutdown Mode (Power Supply Disabled) .......................................112.3 Detailed Pin Descriptions ...............................................................112.4 Transceiver Configuration and Diagnostic Commands ..................122.5 In-Service Operation—Radio & Data Configuration .......................142.6 Using the Evaluation Board (P/N 03-4051A01) ..............................15Connecting the Evaluation Board & Transceiver...............................162.7 Cable Connections for Benchtop Testing .......................................17Antenna Connection (J300 on the ROR module).............................18Diagnostic Connection (J4) ..............................................................18Data Connector (J5) .........................................................................19DC Power Connector (J3).................................................................20Jumper Block J1 (DC Power Configuration) .....................................212.8 Benchtop Power-Up & Configuration .............................................21 3.0 TECHNICAL REFERENCE .......................................................22 3.1 Transceiver Specifications ..............................................................223.2 dBm-Watts-Volts Conversion Chart ................................................24 4.0 GLOSSARY OF TERMS............................................................25 Copyright Notice This Installation and Operation Guide and all software described herein are copyright: 2004 Microwave Data Systems Inc . All rights reserved.Microwave Data Systems Inc. reserves its right to correct any errors and omissions in this publication.
iv ROR Transceiver Module MDS 05-4132A01, Rev. A Antenna Installation Warnings 1. All antenna installation and servicing is to be performed by qualified technical personnel only. When servicing the antenna, or working at distances closer than those listed below, ensure the transmitter has been disabled. 2. Depending upon the application and the gain of the antenna, the total composite power could exceed 90 watts EIRP. For fixed/mobile configuration, the distances in the table below must be followed. Requirements for Portable Applications For portable applications with a directly connected antenna, the device and its maximum gain antenna of 2.1 dBi must operate with a separation distance of at least 2.5 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. The device must transmit with a source-based, time averaging duty factor not exceeding 2.6%. End users of this product must be provided with specific instructions for satisfying RF exposure compliance require-ments.When the ROR 220 module is to be used in portable applications, it must be re-tested by the integrator and carry its own FCC identifi-cation number. ISO 9001 Registration Microwave Data Systems adheres to this internationally accepted quality system standard. MDS Quality Policy Statement We, the employees of Microwave Data Systems Inc., are committed to understanding and exceeding our customer’s needs and expectations.• We appreciate our customer’s patronage. They are our business.• We promise to serve them and anticipate their needs.• We are committed to providing solutions that are cost effective, innovative and reliable, with consistently high levels of quality.• We are committed to the continuous improvement of all of our systems and processes, to improve product quality and increase customer satisfaction.RF ExposureSeparation distancesrequired for FCC RFExposure compliance Antenna Gain vs. Minimum Safety Distance (Based on a 100% Duty Cycle, 0 dB Feedline Loss) Fixed/Mobile Antenna Gain0–5 dBi 5–10 dBi 10–16.5 dBiMinimum RF Safety Distance 0.58 meter 1.04 meters 2.19 meters
MDS 05-4132A01, Rev. A ROR Transceiver Module v ESD Notice To prevent malfunction or damage to this product, which may be caused by Electrostatic Discharge (ESD), the radio should be properly grounded at the time of installation. In addition, the installer or main-tainer should follow proper ESD precautions, such as touching a bare metal object to dissipate body charge, prior to touching components or connecting/disconnecting cables. Manual Revision and Accuracy While every reasonable effort has been made to ensure the accuracy of this manual, product improvements may result in minor differences between the manual and the product shipped to you. If you have addi-tional questions or need an exact specification for a product, please con-tact our Customer Service Team using the information at the back of this guide. In addition, manual updates can often be found on the MDS Web site at www.microwavedata.com. FCC Modular Approval Notice (Pending) This device is offered as a Modular Transmitter in per FCC Part 90. It is approved for use under the following conditions: (1) When this device is placed inside an enclosure, a durable label must be affixed to the out-side of that enclosure indicating the unit’s FCC ID Number: E5MDS-ROR220. (2) Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. FCC Part 15 Notice (Pending) 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 deter-mined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:• Reorient or locate 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 connected. • Consult the dealer or an experienced radio/TV technician for help.
vi ROR Transceiver Module MDS 05-4132A01, Rev. A Industry Canada RSS-119 (Pending) This Class B digital apparatus complies with Canadian RSS-119. Cet appareil numérique de la classe B est conforme à la norme RSS-119 du Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.Changes or modifications not expressly approved by the party respon-sible for compliance could void the user's authority to operate the equip-ment.
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 7 Preliminary 1.0 INTRODUCTION This guide presents installation and operating instructions for the ROR transceiver module. The unit is a compact, modular board intended for integration inside customer-designed equipment.The module (Figure 1) is a wireless data transceiver designed to operate in an industrial environment. It employs two microprocessors—one for Digital Signal Processing (DSP) control of the unit’s data port, and another for control of modulation functions at the diagnostic port. The module employs Gaussian-mean shift keying (GMSK) modulation. These features provide highly reliable communications, even under adverse conditions. Invisible place holder Figure 1. ROR Transceiver Module (Module shown with shield cover removed) 1.1 Modem Speed versus Channel Bandwidth The module is factory configured for an over-the-air data baud rate ( BAUD ) of 9600 bps, Gaussian filtering ( BT=.3 ), and a channel bandwidth ( BW ) of 12.5 kHz. This configuration may be verified by use of the MODEM command. These settings are independent of any other user-controllable parameter. 1.2 Frequency Coverage The ROR module is designed for operation in the 217-222 MHz frequency band. Any combination of transmitter and receiver operating frequencies can be programmed, including a simplex (TX = RX) pair.
8 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. A Preliminary 2.0 INSTALLATION DESIGN The module is designed to be an integral part of another electronic device or system. It must be provided with adequate and stable primary power, a complementary data interface and a suitable antenna system. An antenna is the only external device that is needed for operation.The module has just two connectors—one for data/power, and another for the antenna connection. Figure 2 shows the location of these connectors.The data/power connector (J500) is a 16-pin dual-row header connector that mates with a Samtec TW Series, Part No. ASP 103812-01. This matching connector is provided on the OEM Test/Evaluation board, described later in this manual. Data signals and DC power are applied to the module through this board or another device to which the radio is attached.The Antenna/RF Output connector (J300) is located at the lower right side of the module, and is a female MCX-type coaxial connector. A suitable RF load or antenna may be connected to this connector. Invisible place holder Figure 2. Connections to the Transceiver Module (Module shown with shield cover removed) In its deliverable form, the module has all of its electronic circuitry enclosed in RF shields to minimize interaction with nearby electronic products. Careful selection and/or routing of the unit’s antenna feedline line may be required to minimize RFI to other electronic devices mounted near the module. The module can be set to produce either 0.5 watt, or 2 watts of RF output using a connected terminal (requires use of PWR command).ANTENNADATA & POWER CONNECTOR (J500)CONNECTOR(J300)
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 9 Preliminary For optimal communication range and reliability, this unit must be provided with a good antenna system. A secondary benefit to an effective antenna system is the ability to run the system at the lowest possible power level, minimize primary power consumption, and reduce the chance for interference.The data interface for the module supports TTL-type signaling. Use only the required pins for the application. Refer to the complete list of pin functions in Table 5 on Page 17. 2.1 Antennas and Feedlines Antennas The module can be used with a variety of antennas, ranging from a directly-connected flexible type, to a highly directional array. The exact style depends on the physical size and layout of the radio system. Suitable antennas are available from several manufacturers, including Microwave Data Systems.At master stations, omni-directional antennas (Figure 4) are typically used to provide equal coverage to all remote sites in the network. Invisible place holder Figure 3. Typical Omni-directional Antenna for Master Stations (Shown mounted to mast) At remote sites, a directional Yagi (Figure 5) or corner reflector antenna is generally recommended to minimize interference to and from other users.
10 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. A Preliminary Invisible place holder Figure 4. Typical Yagi Antenna for Remote Sites Feedlines The selection of a proper antenna feedline is very important. Poor quality cables should be avoided as they can result in power losses that may reduce the range and reliability of the radio system.Table 2 shows the losses that occur when using various lengths and types of cable at 200 MHz. Regardless of the type of cable used, it should be kept as short as possible to minimize signal loss. 2.2 Primary Power (6-12 Vdc) DC Supply Connection The transceiver can be operated from any well-filtered 6-12 Vdc power source through the DATA INTERFACE connector. The power supply must be capable of providing at least 1.5 Amperes and provide current limiting even if you intend to operate the radio at low power (0.5 Watts). NOTE: The radio is designed for use in negative ground systems only.There is no fuse or reverse polarity protection provided on the module’s PCB assembly. Sleep Mode (Energy Conservation) In some installations, such as at solar-powered sites, it may be necessary to keep the transceiver’s power consumption to an absolute minimum. This can be accomplished by configuring the host device to ground Pin 6 on the DATA INTERFACE connector, which powers down the radio until Table 1. Length vs. Loss in Coaxial Cables at 200 MHz Cable Type 10 Feet (3.05 Meters) 50 Feet (15.24 Meters) 100 Feet (30.48 Meters) 500 Feet (152.4 Meters) RG-8A/U 0.32dB 1.6 dB 3.2 dB 16 dB 1/2 inch HELIAX 0.10 dB 0.49 dB 0.98 dB 4.9 dB 7/8 inch HELIAX 0.05 dB 0.27 dB 0.54 dB 2.7 dB 1-1/4 inch HELIAX 0.04 dB 0.20 dB 0.40 dB 2.0 dB 1-5/8 inch HELIAX 0.03 dB 0.17 dB 0.33 dB 1.65 dBCAUTIONPOSSIBLEEQUIPMENTDAMAGE
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 11 Preliminary communication with other stations is needed. All radio and microprocessor activity is disabled when the radio is in Sleep Mode. When the ground is removed from Pin 6, the radio is ready to operate within 75 milliseconds. Shutdown Mode (Power Supply Disabled) The Shutdown Mode completely turns off the ROR Module’s power supply. It is asserted by placing a ground on Pin 8 of the DATA INTERFACE connector. With this pin grounded, all radio functions cease. 2.3 Detailed Pin Descriptions Table 3 provides detailed pin functions for the transceiver’s 16-pin header connector shown in Figure 6. Figure 5 . 16-pin Header Connector (J500) on Transceiver Module Table 2. Transceiver Data/Power Connector Pinouts (Payload data TTL; Diagnostic data TTL) Pin No. Input/Output SignalType Name/Description 1IN -- Ground— Connects to ground (negative supply potential).2 OUT TTL, 3 Vdc Diagnostic TXD— Supplies received diagnos-tic/administrative data to the connected device.3 OUT TTL, 3 Vdc Alarm condition— A low indicates normal opera-tion. A high indicates an alarm. (See ASENSE [HI/LO] command for more information.)4 IN TTL, 3 Vdc Diagnostic RXD—Accepts diagnostic/adminis-trative data from the connected device.5 IN -- FCC 6-12 Vdc version: DC Input (6-12 Vdc)— Supply Source must be capable of furnishing at least 7.5 watts.Non-FCC 3 Vdc version: Do not connect6 IN TTL, 3 Vdc Sleep Mode Input—A ground on this pin turns off most circuits in a remote radio. This allows for greatly reduced power consumption, yet pre-serves the radio’s ability to be brought quickly back on line. See Sleep Mode (Energy Conservation) on Page 12 for details.7 OUT TTL, 3 Vdc Reserved—Do not connect.8 IN TTL, 3 Vdc Power Supply Shutdown Control—A ground on this pin causes the OEM module’s power supply to shut down.116253487691514 1312 1110
12 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminarySome pins on the DATA INTERFACE connector are used for factory testing. Use only the required pins for the application. Damage may result if improper connections are made.2.4 Transceiver Configuration and Diagnostic CommandsThe transceiver’s configuration and diagnostics are performed through the radio’s DATA INTERFACE connector through a terminal interface—either a personal computer or dedicated data terminal. An EIA/RS-232 to TTL converter circuit may be required depending on your installation design. Configuration and diagnostic activities may be performed with the module removed from the user equipment or as an installed module in your design.If you choose to setup the module before its final installation, you may find it convenient to use the OEM Evaluation Board. (See Using the Evaluation Board (P/N 03-4051A01) on Page 16 for more detail.)Table 4 lists each command entry and a brief description of its purpose. Programmable information is shown in brackets [ ] following the command name.9 -- -- Non-FCC 3 Vdc version: DC Input (Regulated 3.3 Vdc)—Supply Source must be capable of fur-nishing at least 7.5 watts.FCC 6-12 Vdc version: Do not connect10 IN TTL, 3 Vdc Transmitted Data (TXD)—Accepts payload data from the connected device.11 IN -- FCC 6-12 Vdc version: DC Input (6-12 Vdc)— Supply Source must be capable of furnishing at least 7.5 watts.Non-FCC 3 Vdc version: Do not connect12 IN TTL, 3 Vdc Reserved—Do not connect.13 -- -- Reserved—Do not connect.14 OUT TTL, 3 Vdc Received Data (RXD)—Supplies received pay-load data to the connected device.15 IN -- Ground—Connects to ground (negative supply potential).16 OUT TTL, 3 Vdc Reserved—Do not connect.Table 2. Transceiver Data/Power Connector Pinouts(Payload data TTL; Diagnostic data TTL) (Continued)CAUTIONUSE ONLY REQUIRED PINS
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 13PreliminaryTo enter a command, type the command, followed by an keystroke. For programming commands, the command is followed by and the appropriate information or values, then . Table 3. Command Summary Command FunctionDKEY Unkey Transmitter Test CarrierKEY Transmitter Carrier Key• Test command for technicians to key the radio with an unmodulated carrier.• Use DKEY command to cease transmissionNOTES: • Use only for test purposes.• No time-out timer on this function.MODEM MODEM—Data ConfigurationResponse indicates:Payload data rate (BAUD) + Gaussian Bandwidth x Data Rate (BT) + Channel Spacing (BW)For example: 9.6Kbps BT=.3 12.5 KHz.NOTE: Provides only a read-only display. The command cannot be used to change the settings. PWR [x] RF Power Output LevelOptions: H = High Power (2 Watts)L = Low Power (0.5 Watts)RSSI Received Signal Strength Indictor• Displays the current received RF signal level• One measurement per request by command• Reading is accurate to within 3 dB from –100 dBm to –60 dBmNOTE: A continuous RSSI signal is available during receive state on the DATA INTERFACE connector (J500).SREV [xxx] Software Revision of installed firmwareSER Serial Number of the moduleRX [xxx.xxxxx] Receive RF Frequency• The frequency must be within the operating range for the unit. • Up to 5 digits can be entered after the decimal point. Trailing zeros are not required. • Frequencies can be in either 5 or 6.25 kHz increments.TX [xxx.xxxxx] Transmit RF Frequency• The frequency must be within the operating range for the unit. • Up to 5 digits can be entered after the decimal point. Trailing zeros are not required. • Frequencies can be in either 5 or 6.25 kHz increments.ENTERSPACE ENTER
14 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminary2.5 In-Service Operation—Radio & Data ConfigurationBelow are the basic steps for setting up of the transceiver once it is installed in the host device. In many cases, these steps alone are sufficient to complete the installation. This procedure assumes the module has been installed in your system/product and suitable connections have been provided for a terminal interface and antenna.3. Install the antenna and antenna feedline for the station. Preset directional antennas in the desired direction of transmission and reception.4. Connect a terminal (computer with emulations software) to the module through the user’s product interface. (Asynchronous @ 38400 bps w/8N1)5. Enable the configuration mode for the module. DIAGNOSTICS OPEN will appear on the terminal screen terminal once diagnostics communication with the radio is established.6. Review the existing configuration parameters through a series of terminal commands.•MODEM—Data ConfigurationResponse indicates:Payload data rate (BAUD)Gaussian Bandwidth x Data Rate (BT)Channel Spacing (BW) For example: 9.6Kbps BT=.3 12.5KHz.•PWR—RF Power OutputResponses: H = 2 Watts, L = 0.5 Watts7. Check and set the radio transmit and receive frequencies.NOTE: The operating frequencies are typically not set at the factory.Determine the transmit and receive frequencies to be used, andfollow the steps below to program them. The module must beprogrammed for the frequencies for which you hold a validlicense.)a. Set the transmit frequency with the TX xxx.xxxxx command.Press after the command.b. Set the receive frequency with the RX xxx.xxxxx command.Press after the command.ENTERENTER
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 15Preliminaryc. After programming any parameter, PROGRAMMED OK will be displayed to indicate a successful entry.8. Review and reprogram any other parameters as necessary to complement your system requirements. (See Table 4 on Page 14 for a list of all user commands.)9. Optimize the antenna installation by measuring the received signal strength of the other station with which this station will be communicating. Monitor the module’s RSSI level. Rotate the station antenna until the signal is the strongest. The less negative the value, the stronger the incoming radio signal.The received signal should be at least –90 dBm. This value will provide a safety margin (fade margin) to prevent loss of communications through signal reduction caused by weather conditions, changes in station location if mobile, or other obstructions temporarily positioned between communicating stations.10. Disconnect the terminal interface and the ground from the DATA INTERFACE connector.11. Connect the data equipment to the transceiver’s DATA INTERFACE connector and test for normal operation.2.6 Using the Evaluation Board (P/N 03-4051A01)The Evaluation Board (Figure 7) is designed to assist integrators and testers who will work with the transceiver in a benchtop setting. It contains a 16-pin header connector (J2) that mates with female connector J500 on the transceiver board. It carries all signals (except RF) onto the Evaluation Board. Table 5 lists the basic pin functions of J2. For more detailed pinout information, refer to Section 2.5 on Page 12.The Evaluation Board provides convenient connection points for diagnostics, payload data, and DC power. Each of these connectors are discussed in this section. The board also includes a series of test probe points to the left of J2. These may be used for monitoring logic signal activity with a multimeter or oscilloscope. The probe points are identified by printed markings on the board.The module’s RF/Antenna connection is not brought onto the Evaluation Board by the 16-pin header. The antenna connection is always made at J300 on the transceiver module using a male MCX-type connector.
16 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminaryFigure 6. OEM Evaluation Board (P/N 03-4051A01)Connecting the Evaluation Board & Transceiver (Figure 8)To connect the Evaluation Board to the radio, carefully align the pins of the 16-pin header with J3 on the transceiver module and press down firmly. The radio PC board should seat solidly on the four standoff spacers. Use nuts to secure the board to the standoffs.Table 4. Basic Pin Functions of J2 (16-Pin Header Connector)Pin No. Pin Function1 Ground2 Diagnostic TXD3 Alarm Condition4 Diagnostic RXD5 DC Input6 Sleep Mode Input7 Reserved—Do not connect.8 Power Supply Shutdown Control9 Reserved—Do not connect.10 Transmitted Payload Data (TXD)11 DC Input12 Reserved—Do not connect.13 Reserved—Do not connect.14 Received Payload Data (RXD)15 Ground16 Reserved—Do not connect.TEST PROBEPOINTSDIAGNOSTICCOMMUNICATIONS(RJ-11) DATA CONNECTOR(DB-9)DC POWER(5-25 VDC)STANDOFF SPACERS (4) 16-PIN HEADERJUMPER BLOCKJ1
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 17PreliminaryInvisible place holderFigure 7. Connecting the Evaluation Board and ROR ModuleCAUTION: Take care to avoid short-circuiting the underside of theEvaluation board. The bottom of the board is not insulated, andcontact with metallic objects on the work surface could causedamage to the board or connected equipment.2.7 Cable Connections for Benchtop TestingThere are four basic requirements for operating the transceiver and evaluation board in a benchtop environment. They are:• Adequate and stable primary power• A proper antenna system or RF load (50 Ohms)• The correct interface wiring between the transceiver and the connected DTE device• A connected PC terminal to read/set transceiver parametersFigure 9 shows a typical setup for bench testing an OEM Transceiver. Two such setups will be required if you intend to establish over-the-air communications with another transceiver.
18 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminaryInvisible place holderFigure 8. Typical Test SetupAntenna Connection (J300 on the ROR module)The Antenna connector is located at the lower right corner of the transceiver module and is a female MCX-type coaxial connector. Connect an antenna or other suitable RF load to this connector.Do not apply DC power to the transceiver without first attaching a proper RF load, or the transceiver may be damaged.Diagnostic Connection (J4)J4 is an RJ-11-6 modular connector used to connect the evaluation board/transceiver to an MCU module for programming and interrogation. An RJ-11 to DB-9 Adapter Cable (Part No. 03-3246A01) is required for this connection. If desired, a cable may be constructed for this purpose as shown in Figure 10. Only Pins 4, 5, and 6 of the RJ-11 connector should be used. (Pins 1, 2, and 3 are reserved for factory test purposes.)The data parameters of the DIAGNOSTICS port are as follows: 38400 bps, 8 data bits, 1 stop bit, and no parity.OEM Transceiverand Evaluation BoardANTENNA(OR 50-OHM RF LOAD)PC TERMINALDATA TERMINALEQUIPMENTPower Supply13.6 VDC @500 mA (min.)CAUTIONPOSSIBLEEQUIPMENTDAMAGE
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 19PreliminaryInvisible place holderFigure 9. RJ-11 to DB-9 Diagnostic Cable—Wiring Details(A pre-constructed cable is also available, Part No. 03-3246A01)Diagnostic Communica-tion with a PC You establish a terminal session with the radio by connecting the diagnostic cable (Figure 10) between the PC and radio, and then starting a communications program, such as HyperTerminal. Commands are issued as plain text strings. A list of radio commands appears in the section titled Transceiver Configuration and Diagnostic Commands on Page 13.Data Connector (J5)J5 on the Evaluation Board (Figure 11) is the data interface for the transceiver. It connects to the radio’s DSP module and does not directly control keying or modulation. It is used to connect the transceiver to an external DTE terminal supporting the EIA/RS-232 or EIA/RS-485 format, depending on how the radio hardware was configured at the factory. The data connector supports interface data rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bps (asynchronous only). The connector mates with a standard DB-9 plug available from many electronic parts suppliers.Data Wiring Connections The connections made to J5 will depend on the requirements of the DTE device being used with the transceiver, and the operating functions that you require. Only the required pins for the application should be used. Do not use a straight through “computer” type cable that is wired pin-for-pin.Typical RS/EIA-232 applications require the use of Pin 2 (receive data—RXD) and Pin 3 (transmit data—TXD). Additionally, some systems may require the use of Pin 7 (Request-to-send—RTS). If hardware flow control is desired, Pin 7 (RTS) and Pin 8 (CTS) may also need connection.Table 6 gives pin details for radios configured for RS/EIA-232 service.RXDTXDGND235DB-9 FEMALE(TO COMPUTER)TXDRXDGND456RJ-11 PLUG(TO TRANSCEIVER)RJ-11 PIN LAYOUT16
20 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminaryNOTE: Radios equipped with a payload TTL interface are presented as RS-232 mode from the Evaluation Board.Pin Descriptions—RS/EIA-232 Mode Table 6 lists the DATA connector pin functions for radios configured to operate in RS/EIA-232 mode.DC Power Connector (J3)This connector accepts operating power for the transceiver. A wall-style AC adapter (Part No. 01-3862A02) is recommended for this service.DC connection is made with a 2-pin polarized plug, MDS Part No. 73-1194A39. Be sure to observe proper polarity. The left terminal is positive (+) and the right is negative (-). (See Figure 12).The transceiver must be used only with negative-ground systems. Make certain that the polarity of the power source is correct.Figure 10. DATA Connector (DB-9F)As viewed from outside the device5961Table 5. J5 DATA Connector Pinouts—RS/EIA-232 PinNumber Input/Output Pin Description1 -- Reserved—Do not connect.2 OUT Received Data (RXD)—Supplies received payload data to the connected device.3IN Transmitted Data (TXD)—Accepts payload data from the connected device.4IN Sleep Mode Input—A ground on this pin turns off most cir-cuits in a remote radio. This allows for greatly reduced pow-er consumption, yet preserves the radio’s ability to be brought quickly back on line. See Sleep Mode (Ener-gy Conservation) on Page 12 for details.5IN Ground—Connects to ground (negative supply potential).6 OUT Alarm condition—A low indicates normal operation. A high indicates an alarm. (See ASENSE [HI/LO] command for more information.)7 -- Reserved—Do not connect.8 --- Reserved—Do not connect.9 -- Reserved—Do not connect.CAUTIONPOSSIBLEEQUIPMENTDAMAGE
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 21PreliminaryInvisible place holderFigure 11. DC Power Connector (P/N 73-1194A39)WARNING: Although the power connector used on the OEM Evaluation Board resembles those used by some earlier MDS transceivers, such as the MDS 9810 and x710 family, the connectors are not equal and the use of the wrong plug will provide unreliable connections and possible sparking. Only the power connector shown in Figure 12 with screw terminals and two retainer screws should be used with the OEM Evaluation Board.Jumper Block J1 (DC Power Configuration)Jumper J1 does not normally require any change by the user. The jumper is used to configure the board for the proper voltage level applied to the transceiver module.Both jumper plugs are normally installed on J1. The plug connecting Pins 3 and 4 may be temporarily removed to insert an ammeter in series with the DC power line going to the transceiver. This provides a convenient way to measure the transceiver’s current draw during bench testing.2.8 Benchtop Power-Up & ConfigurationWhen all of the cable connections described in Section 2.9 have been made, the transceiver is ready for initial power-up. Operation begins as soon as power is applied, and there are no manual adjustments or settings required. To place the transceiver into operation:1. Ensure that all cable connections are properly wired and secure. Verify that no metallic objects are touching the underside of the Evaluation Board which might cause a short-circuit.2. Apply DC power.3. Using a connected PC terminal, configure the unit with the proper mode (master or remote), network address and data parameters. See Section 2.6, Transceiver Configuration and Diagnostic Commands for programming details.4. Verify that the transceiver is transmitting and receiving data (TXD, RXD).LeadScrews (2)BindingWire Ports (2)(Polarity: Left +, Right –)RetainingScrews (2)
22 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminary3.0 TECHNICAL REFERENCE3.1 Transceiver SpecificationsRADIO TYPESynthesized, half duplex or simplex, 6.25 and 5.0 kHz channel spacingENVIRONMENTALTemperature Range: –30 to +60 degrees CHumidity: 0 to 95% at 40 degrees CBoard Dimensions: 2.75″ W x 0.4″ H x 1.75″ D7.0 cm W x 1.10 cm H x 4.4 cm DWeight: x.x oz. (x.x kg)Enclosure: None. PCB with digital/RF circuit shieldingTRANSMITTERFrequency Range: 217-222 MHzFrequency Increments: 6.25 and 5.0 kHzFrequency Stability: 1.5 ppm, –30 to +60 degrees CChannel Spacing: 6.25 and 5.0 kHzModulation Type: GMSK (Gaussian-mean Shift Keying) B.T.= .3Carrier Power: 0.5 W, 2 W programmable(+27 DBM, +33 dBm)Duty Cycle: 50%Output Impedance: 50 ohmsRF Connection: MCX coaxial connectorSpurious and Harmonics: –65 dBcTransmitter Keying: On reception of dataKey-up Time: 2 msData Rate Over-the-Air : 9600 bpsRECEIVERType: Double conversion superheterodyne(45 MHz IF)Frequency Range: 217-222 MHzFrequency Increments: 6.25 and 5.0 kHzFrequency Stability: 1.5 ppm, –30 to +60 degrees CSpurious and Image Rejection: –70 dBSensitivity: 12 dB SINAD @ –119 dBm @ 9600 bpsIntermodulation Rejection: –70 dB minimumSelectivity: 60 dB typical at adjacent channel (EIA)Bandwidth: 12.5 kHzDATA INTERFACEConnector: 16 Pin dual headerSignaling: TTLData Rate—Over-the-air: 9600 bpsData Rate—Diagnostics: 38400 bps asynchronousData Latency: < 20 ms typical
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 23PreliminaryPRIMARY POWERVoltage: 6-12 Vdc via Data Interface connectorRX Current at 10 Vdc (typical): 100 mATX Current at 10 Vdc (typical): 690 mA @ high power (2W)530 mA @ low power (0.5W)Current Limit/Polarity Protection: External; User-providedAGENCY APPROVALS (Pending)FCC Part 15 (Pending)FCC Part 90 (Pending)Industry Canada RSS-119 (Pending)
24 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminary3.2 dBm-Watts-Volts Conversion ChartTable 7 is provided as a convenience for determining the equivalent wattage or voltage of an RF power expressed in dBm.Table 6. dBm-Watts-Volts Conversion—for 50 Ohm SystemsdBm V Po+53 100.0 200W+50 70.7 100W+49 64.0 80W+48 58.0 64W+47 50.0 50W+46 44.5 40W+45 40.0 32W+44 32.5 25W+43 32.0 20W+42 28.0 16W+41 26.2 12.5W+40 22.5 10W+39 20.0 8W+38 18.0 6.4W+37 16.0 5W+36 14.1 4W+35 12.5 3.2W+34 11.5 2.5W+33 10.0 2W+32 9.0 1.6W+31 8.0 1.25W+30 7.10 1.0W+29 6.40 800mW+28 5.80 640mW+27 5.00 500mW+26 4.45 400mW+25 4.00 320mW+24 3.55 250mW+23 3.20 200mW+22 2.80 160mW+21 2.52 125mW+20 2.25 100mW+19 2.00 80mW+18 1.80 64mW+17 1.60 50mW+16 1.41 40mW+15 1.25 32mW+14 1.15 25mW+13 1.00 20mW+12 .90 16mW+11 .80 12.5mW+10 .71 10mW+9 .64 8mW+8 .58 6.4mW+7 .500 5mW+6 .445 4mW+5 .400 3.2mW+4 .355 2.5mW+3 .320 2.0mW+2 .280 1.6mW+1 .252 1.25mWdBm V Po0 .225 1.0mW-1 .200 .80mW-2 .180 .64mW-3 .160 .50mW-4 .141 .40mW-5 .125 .32mW-6 .115 .25mW-7 .100 .20mW-8 .090 .16mW-9 .080 .125mW-10 .071 .10mW-11 .064-12 .058-13 .050-14 .045-15 .040-16 .0355dBm mV Po-17 31.5-18 28.5-19 25.1-20 22.5 .01mW-21 20.0-22 17.9-23 15.9-24 14.1-25 12.8-26 11.5-27 10.0-28 8.9-29 8.0-30 7.1 .001mW-31 6.25-32 5.8-33 5.0-34 4.5-35 4.0-36 3.5-37 3.2-38 2.85-39 2.5-40 2.25 .1µW-41 2.0-42 1.8-43 1.6-44 1.4-45 1.25-46 1.18-47 1.00-48 0.90dBm mV Po-49 0.80-50 0.71 .01µW-51 0.64-52 0.57-53 0.50-54 0.45-55 0.40-56 0.351-57 0.32-58 0.286-59 0.251-60 0.225 .001µW-61 0.200-62 0.180-63 0.160-64 0.141dBm µV Po-65 128-66 115-67 100-68 90-69 80-70 71 .1nW-71 65-72 58-73 50-74 45-75 40-76 35-77 32-78 29-79 25-80 22.5 .01nW-81 20.0-82 18.0-83 16.0-84 11.1-85 12.9-86 11.5-87 10.0-88 9.0-89 8.0-90 7.1 .001nW-91 6.1-92 5.75-93 5.0-94 4.5-95 4.0-96 3.51-97 3.2dBm µV Po-98 2.9-99 2.51-100 2.25 .1pW-101 2.0-102 1.8-103 1.6-104 1.41-105 1.27-106 1.18dBm nV Po-107 1000-108 900-109 800-110 710 .01pW-111 640-112 580-113 500-114 450-115 400-116 355-117 325-118 285-119 251-120 225 .001pW-121 200-122 180-123 160-124 141-125 128-126 117-127 100-128 90-129 80 .1ƒW-130 71-131 61-132 58-133 50-134 45-135 40-136 35-137 33-138 29-139 25-140 23 .01ƒW
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 25Preliminary4.0 GLOSSARY OF TERMSIf you are new to digital radio systems, some of the terms used in this guide may be unfamiliar. The following glossary explains many of these terms and is helpful in understanding the operation of the transceiver.Antenna System Gain—A figure, normally expressed in dB, representing the power increase resulting from the use of a gain-type antenna. System losses (from the feedline and coaxial connectors, for example) are subtracted from this figure to calculate the total antenna system gain.Bit—The smallest unit of digital data, often represented by a one or a zero. Eight bits (plus start, stop, and parity bits) usually comprise a byte.Bits-per-second—See BPS.BPS—Bits-per-second. A measure of the information transfer rate of digital data across a communication channel.Byte—A string of digital data usually made up of eight data bits and start, stop and parity bits.Data Circuit-terminating Equipment—See DCE.Data Communications Equipment—See DCE.Data Terminal Equipment—See DTE.dBi—Decibels referenced to an “ideal” isotropic radiator in free space. Frequently used to express antenna gain.dBm—Decibels referenced to one milliwatt. An absolute unit used to measure signal power, as in transmitter power output, or received signal strength.DCE—Data Circuit-terminating Equipment (or Data Communications Equipment). In data communications terminology, this is the “modem” side of a computer-to-modem connection. The ROR Module is a DCE device.Decibel (dB)—A measure computed from the ratio between two signal levels. Frequently used to express the gain (or loss) of a system.DTE—Data Terminal Equipment. A device that provides data in the form of digital signals at its output. Connects to the DCE device.
26 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminaryFade Margin—The greatest tolerable reduction in average received signal strength that is anticipated under most conditions. Provides an allowance for reduced signal strength due to multipath, slight antenna movement, or changing atmospheric losses. A fade margin of 20 is usually sufficient in most systems.Gaussian-Mean Shift Keying (GMSK) Modulation—A form of continuous-phase FSK, in which the phase is changed between bits to provide a constant envelope.Hardware Flow Control—A transceiver feature used to prevent data buffer overruns when handling high-speed data from the RTU or PLC. When the buffer approaches overflow, the radio drops the clear-to-send (CTS) line, which instructs the RTU or PLC to delay further transmission until CTS again returns to the high state.Host Computer—The computer installed at the master station site, which controls the collection of data from one or more remote sites.Latency—The delay (usually expressed in milliseconds) between when data is applied to TXD (Pin 2) at one radio, until it appears at RXD (Pin 3) at the other radio.MAS—Multiple Address System. A radio system where a central master station communicates with several remote stations for the purpose of gathering telemetry data.Master (Station)—Radio which is connected to the host computer. It is the point at which polling enters the network.Multiple Address System—See MAS.PLC—Programmable Logic Controller. A dedicated microprocessor configured for a specific application with discrete inputs and outputs. It can serve as a host or as an RTU.Point-to-Multipoint System—A radio communications network or system designed with a central control station that exchanges data with a number of remote locations equipped with terminal equipment.Poll—A request for data issued from the host computer (or master PLC) to a remote radio.Programmable Logic Controller—See PLC.Received Signal Strength Indication—See RSSI.Redundant Operation—A station arrangement where two transceivers and two power supplies are available for operation, with automatic switchover in case of a failure.
MDS 05-4132A01, Rev. A ROR Transceiver Module (Preliminary) 27PreliminaryRemote (Station)—A radio in a network that communicates with an associated master station.Remote Terminal Unit—See RTU.RSSI—Received Signal Strength Indication. A measure, in dBm, of the strength of the signal received by a radio from an antenna. The radio must be properly calibrated for the RSSI value to be meaningful.RTU—Remote Terminal Unit. A data collection device installed at a remote radio site.SCADA—Supervisory Control And Data Acquisition. An overall term for the functions commonly provided through an MAS radio system.Supervisory Control And Data Acquisition—See SCADA.
28 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev. APreliminary
IN CASE OF DIFFICULTY...MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment may have an occasional component failure. The following informa-tion will assist you in the event that servicing becomes necessary.FACTORY TECHNICAL ASSISTANCETechnical assistance for MDS products is available from our Customer Support Team during business hours (8:00 A.M.–5:30 P.M. Eastern Time). When calling, please give the complete model number of the radio, along with a description of the trouble symptom(s) that you are expe-riencing. In many cases, problems can be resolved over the telephone, without the need for returning the unit to the factory.Please use the following telephone numbers for product assistance:716-242-9600 (Phone)716-242-9620 (Fax)FACTORY REPAIRSComponent-level repair of radio equipment is not recommended in the field. Many components are installed using surface mount technology, which requires specialized training and equipment for proper servicing. For this reason, the equipment should be returned to the factory for any PC board repairs. The factory is best equipped to diagnose, repair and align your radio to its proper operating specifications.If return of the equipment is necessary, you will be issued a Returned Material Authorization (RMA) number. The RMA number will help expedite the repair so that the equipment can be repaired and returned to you as quickly as possible. Please be sure to include the RMA number on the outside of the shipping box, and on any correspondence relating to the repair. No equipment will be accepted for repair without an RMA number.A statement should accompany the radio describing, in detail, the trouble symptom(s), and a description of any associated equipment normally connected to the radio. It is also important to include the name and telephone number of a person in your organization who can be contacted if additional information is required.The radio must be properly packed for return to the factory. The original shipping container and packaging materials should be used whenever possible. All factory returns should be addressed to:When repairs have been completed, the equipment will be returned to you by the same shipping method used to send it to the factory. Please specify if you wish to make different shipping arrangements.Microwave Data Systems Inc.Customer Service Department(RMA No. XXXX)175 Science ParkwayRochester, NY 14620 USA
175 Science Parkway, Rochester, New York 14620General Business: +1 (585) 242-9600FAX: +1 (585) 242-9620Web: www.microwavedata.com

Navigation menu