ROR Module 217-222 MHz Licensed OEM Transceiver MDS 05-4132A01, Rev. A MARCH 2004 (PRELIMINARY) Integration Guide Microwave Data Systems Inc.
TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................... 7 1.1 Modem Speed versus Channel Bandwidth ...................................... 7 1.2 Frequency Coverage ........................................................................ 7 2.0 INSTALLATION DESIGN ............................................................. 8 2.1 Antennas and Feedlines .................................................................. 9 Antennas ...........................
RF Exposure Separation distances required for FCC RF Exposure compliance 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.
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 maintainer should follow proper ESD precautions, such as touching a bare metal object to dissipate body charge, prior to touching components or connecting/disconnecting cables.
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.
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.
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. Preliminary The module has just two connectors—one for data/power, and another for the antenna connection. Figure 2 shows the location of these connectors.
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.
Invisible place holder Figure 4. Typical Yagi Antenna for Remote Sites Feedlines Preliminary 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. Table 1. Length vs.
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.
Table 2. Transceiver Data/Power Connector Pinouts (Payload data TTL; Diagnostic data TTL) (Continued) 9 -- -- Non-FCC 3 Vdc version: DC Input (Regulated 3.3 Vdc)—Supply Source must be capable of furnishing at least 7.5 watts. FCC 6-12 Vdc version: Do not connect 10 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.
To enter a command, type the command, followed by an ENTER keystroke. For programming commands, the command is followed by SPACE and the appropriate information or values, then ENTER . Table 3. Command Summary Command Function DKEY Unkey Transmitter Test Carrier KEY Transmitter Carrier Key • Test command for technicians to key the radio with an unmodulated carrier. • Use DKEY command to cease transmission NOTES: • Use only for test purposes. Preliminary • No time-out timer on this function.
2.5 In-Service Operation—Radio & Data Configuration Below 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. Preliminary 3. Install the antenna and antenna feedline for the station.
c. 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.) Preliminary 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.
STANDOFF SPACERS (4) 16-PIN HEADER TEST PROBE POINTS JUMPER BLOCK J1 DC POWER (5-25 VDC) DIAGNOSTIC COMMUNICATIONS (RJ-11) DATA CONNECTOR (DB-9) Preliminary Figure 6. OEM Evaluation Board (P/N 03-4051A01) Table 4. Basic Pin Functions of J2 (16-Pin Header Connector) Pin No. Pin Function 1 Ground 2 Diagnostic TXD 3 Alarm Condition 4 Diagnostic RXD 5 DC Input 6 Sleep Mode Input 7 Reserved—Do not connect. 8 Power Supply Shutdown Control 9 Reserved—Do not connect.
Invisible place holder Preliminary Figure 7. Connecting the Evaluation Board and ROR Module CAUTION: Take care to avoid short-circuiting the underside of the Evaluation board. The bottom of the board is not insulated, and contact with metallic objects on the work surface could cause damage to the board or connected equipment. 2.7 Cable Connections for Benchtop Testing There are four basic requirements for operating the transceiver and evaluation board in a benchtop environment.
Invisible place holder ANTENNA (OR 50-OHM RF LOAD) Preliminary Power Supply 13.6 VDC @ 500 mA (min.) OEM Transceiver and Evaluation Board DATA TERMINAL EQUIPMENT PC TERMINAL Figure 8. Typical Test Setup Antenna 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.
Invisible place holder RJ-11 PLUG (TO TRANSCEIVER) 1 6 RJ-11 PIN LAYOUT DB-9 FEMALE (TO COMPUTER) 4 TXD RXD 2 5 RXD TXD 3 6 GND GND 5 Figure 9. RJ-11 to DB-9 Diagnostic Cable—Wiring Details (A pre-constructed cable is also available, Part No.
NOTE: Radios equipped with a payload TTL interface are presented as RS-232 mode from the Evaluation Board. 1 5 Figure 10. DATA Connector (DB-9F) As viewed from outside the device 9 Pin Descriptions— RS/EIA-232 Mode 6 Table 6 lists the DATA connector pin functions for radios configured to operate in RS/EIA-232 mode. Table 5. J5 DATA Connector Pinouts—RS/EIA-232 Preliminary Pin Number Input/ Output Pin Description 1 -- Reserved—Do not connect.
Invisible place holder Lead Binding Screws (2) Wire Ports (2) Retaining Screws (2) (Polarity: Left +, Right –) Figure 11. DC Power Connector (P/N 73-1194A39) Preliminary 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.
3.0 TECHNICAL REFERENCE 3.1 Transceiver Specifications RADIO TYPE Synthesized, half duplex or simplex, 6.25 and 5.0 kHz channel spacing ENVIRONMENTAL Temperature Range: Humidity: Board Dimensions: Preliminary Weight: Enclosure: –30 to +60 degrees C 0 to 95% at 40 degrees C 2.75″ W x 0.4″ H x 1.75″ D 7.0 cm W x 1.10 cm H x 4.4 cm D x.x oz. (x.x kg) None.
PRIMARY POWER Voltage: RX Current at 10 Vdc (typical): TX Current at 10 Vdc (typical): Current Limit/Polarity Protection: 6-12 Vdc via Data Interface connector 100 mA 690 mA @ high power (2W) 530 mA @ low power (0.5W) External; User-provided AGENCY APPROVALS (Pending) Preliminary FCC Part 15 (Pending) FCC Part 90 (Pending) Industry Canada RSS-119 (Pending) MDS 05-4132A01, Rev.
3.2 dBm-Watts-Volts Conversion Chart Table 7 is provided as a convenience for determining the equivalent wattage or voltage of an RF power expressed in dBm. Preliminary Table 6. dBm-Watts-Volts Conversion—for 50 Ohm Systems 24 dBm V Po dBm V Po dBm mV +53 +50 +49 +48 +47 +46 +45 +44 +43 +42 +41 +40 +39 +38 +37 +36 +35 +34 +33 +32 +31 +30 +29 +28 +27 +26 +25 +24 +23 +22 +21 +20 +19 +18 +17 +16 +15 +14 +13 +12 +11 +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 200W 100W 80W 64W 50W 40W 32W 25W 20W 16W 12.
4.0 GLOSSARY OF TERMS If 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.
Fade 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.
Remote (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.
Preliminary 28 ROR Transceiver Module (Preliminary) MDS 05-4132A01, Rev.
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 information will assist you in the event that servicing becomes necessary. FACTORY TECHNICAL ASSISTANCE Technical assistance for MDS products is available from our Customer Support Team during business hours (8:00 A.M.–5:30 P.M. Eastern Time).
175 Science Parkway, Rochester, New York 14620 General Business: +1 (585) 242-9600 FAX: +1 (585) 242-9620 Web: www.microwavedata.
