GE MDS DS9710N-1 Remote Data Transceiver User Manual 3305B x710A C Body

GE MDS LLC Remote Data Transceiver 3305B x710A C Body

Users Manual Revised

Installation and Operation Guide MDS 05-3305A01, Rev. BSEPTEMBER 2000 400 MHz/900 MHzRemote Data Transceiver MDS 4710/9710 Series (Including MDS 4710A/C and MDS 9710 A/C)
QUICK START GUIDE Below are the basic steps for installing the transceiver. Detailed instructions are given in “INSTALLA-TION” on page 9 of this guide. 1. Install and connect the antenna system to the radio • Use good quality, low loss coaxial cable. Keep the feedline as short as possible.• Preset directional antennas in the direction of desired transmission. 2. Connect the data equipment to the radio’s INTERFACE connector • Connection to the radio must be made with a DB-25 Male connector. Connections for typical sys-tems are shown below. • Connect only the required pins. Do not use a straight-through RS-232 cable with all pins wired.• Verify the data equipment is configured as DTE. (By default, the radio is configured as DCE.) 3. Apply DC power to the radio (10.5–16 Vdc @ 2.5 A minimum) • Observe proper polarity. The red wire is the positive lead; the black is negative. 4. Set the radio’s basic configuration with a Hand-Held Terminal (HHT) • Set the transmit frequency ( TX xxx.xxxx ).• Set the receive frequency ( RX xxx.xxxx ).• Set the baud rate/data interface parameters as follows. Use the BAUD xxxxx abc command, where xxxxx equals the data speed (110–38400 bps) and abc equals the communication parameters as follows: a = Data bits (7 or 8) b = Parity (N for None, O for Odd, E for Even c = Stop bits (1 or 2)(Example: BAUD 9600 8N1 )NOTE: 7N1, 8E2 and 8O2 are invalid parameters and are not supported by the transceiver. 5. Verify proper operation by observing the LED display • Refer to Table 5 on page 16 for a description of the status LEDs.• Refine directional antenna headings for maximum receive signal strength using the RSSI command. DB-25 DB-25TRANSCEIVER(DCE)2323RTU(DTE)45206DSR DSR6TXDRXDGNDRTSCTSTXDRXDGND4CTS5RTSDB-9 DB-25DB-9 to DB-25 ExampleDB-25 to DB-25 Example1145TRANSCEIVER(DCE)2332RTU(DTE)5207RXDTXDDCDGNDDSRRTSRXDTXDDCDGNDAs required for application51876CTSDSRRTSCTS864577GND GND8 8DCD DCDAs required for application
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide i TABLE OF CONTENTS 1.0 GENERAL.................................................................................... 1 1.1 Introduction ......................................................................................11.2 Applications ......................................................................................2Point-to-Multipoint, Multiple Address Systems (MAS) ........................2Point-to-Point System .........................................................................3Continuously Keyed versus Switched Carrier Operation....................3Single Frequency (Simplex) Operation...............................................31.3 Model Number Codes ......................................................................31.4 Accessories ......................................................................................4 2.0 GLOSSARY OF TERMS.............................................................. 6 3.0 INSTALLATION............................................................................ 9 3.1 Installation Steps ..............................................................................93.2 Transceiver Mounting .....................................................................113.3 Antennas and Feedlines ................................................................11Feedlines ..........................................................................................123.4 Power Connection ..........................................................................133.5 Data Interface Connections ............................................................133.6 Using the Radio’s Sleep Mode .......................................................13System Example...............................................................................13 4.0 OPERATION.............................................................................. 15 4.1 LED Indicators ................................................................................164.2 RSSI Measurement ........................................................................16 5.0 TRANSCEIVER PROGRAMMING ............................................ 17 5.1 Hand-Held Terminal Connection & Startup ....................................175.2 Hand-Held Terminal Setup .............................................................185.3 Keyboard Commands .....................................................................19Entering Commands.........................................................................19Error Messages ................................................................................195.4 Detailed Command Descriptions ...................................................22AMASK [0000 0000–FFFF FFFF] ....................................................22ASENSE [HI/LO]...............................................................................23BAUD [xxxxx abc] .............................................................................23BUFF [ON, OFF]...............................................................................24CKEY [ON–OFF] ..............................................................................24CTS [0–255] .....................................................................................24DATAKEY [ON, OFF] ........................................................................24DEVICE [DCE, CTS KEY] ................................................................25DKEY................................................................................................25DLINK [ON/OFF/xxxx] ......................................................................25
ii MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B DMGAP [xx]......................................................................................25DTYPE [NODE/ROOT] .....................................................................26DUMP...............................................................................................26HREV................................................................................................26INIT...................................................................................................26INIT [4710/9710]...............................................................................26INIT [4720/9720]...............................................................................27KEY ..................................................................................................27MODEL.............................................................................................27MODEM [xxxx, NONE] .....................................................................27OWM [XXX...] ...................................................................................27OWN [XXX...]....................................................................................27PTT [0–255]......................................................................................27PWR [20–37] ....................................................................................27RSSI .................................................................................................28RTU [ON/OFF/0-80]..........................................................................28RX [xxx.xxxx]....................................................................................28RXTOT [NONE, 1-255] .....................................................................28SCD [0-255]......................................................................................29SER ..................................................................................................29SHOW [DC, PORT, PWR].................................................................29SNR..................................................................................................29SREV................................................................................................29STAT .................................................................................................29TEMP................................................................................................30TOT [1-255, ON, OFF]......................................................................30TX [xxx.xxxx] ....................................................................................30UNIT [10000...65000] .......................................................................30 6.0 TROUBLESHOOTING............................................................... 30 6.1 LED Indicators ................................................................................316.2 Event Codes ...................................................................................31Checking for Alarms—STAT command.............................................31Major Alarms vs. Minor Alarms.........................................................32Event Code Definitions .....................................................................32 7.0 TECHNICAL REFERENCE ....................................................... 33 7.1 MDS 4710/9710 Transceiver Specifications ...................................337.2 Helical Filter Adjustment ................................................................367.3 Performing Network-Wide Remote Diagnostics .............................377.4 Upgrading the Radio’s Software .....................................................387.5 dBm-Watts-Volts Conversion Chart ................................................40
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide iii Copyright Notice This Installation and Operation Guide and all software described herein are protected by copyright: 2000 Microwave Data Systems Inc . All rights reserved.Microwave Data Systems Inc. reserves its right to correct any errors and omissions in this publication. Operational Safety Notices The radio equipment described in this guide emits radio frequency energy. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard. Do not allow people to come closer than 2.6 meters to the front of the antenna when the trans-mitter is operating.This manual is intended to guide a professional installer to install, operate and perform basic system maintenance on the described radio. 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 achieving total customer satisfaction in everything we do. Total Customer Satisfaction in: • Conception, design, manufacture and marketing of our products.• Services and support we provide to our internal and external customers. Total Customer Satisfaction Achieved Through: • Processes that are well documented and minimize variations.• Partnering with suppliers who are committed to providing quality and service.• Measuring our performance against customer expectations and industry leaders.• Commitment to continuous improvement and employee involvement. FM/UL/CSA Notice This product is available for use in Class I, Division 2, Groups A, B, C & D Hazardous Locations. Such locations are defined in Article 500 of the National Fire Protection Association (NFPA) publication NFPA 70, otherwise known as the National Electrical Code.RF Exposure
iv MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B The transceiver has been recognized for use in these hazardous locations by three independent agencies —Underwriters Laboratories (UL), Fac-tory Mutual Research Corporation (FMRC) and the Canadian Standards Association (CSA). The UL certification for the transceiver is as a Rec-ognized Component for use in these hazardous locations, in accordance with UL Standard 1604. The FMRC Approval is in accordance with FMRC Standard 3611. The CSA Certification is in accordance with CSA STD C22.2 No. 213-M1987.FM/UL/CSA Conditions of Approval:The transceiver is not acceptable as a stand-alone unit for use in the haz-ardous locations described above. It must either be mounted within another piece of equipment which is certified for hazardous locations, or installed within guidelines, or conditions of approval, as set forth by the approving agencies. These conditions of approval are as follows:1. The transceiver must be mounted within a separate enclosure which is suitable for the intended application.2. The antenna feedline, DC power cable and interface cable must be routed through conduit in accordance with the National Electrical Code.3. Installation, operation and maintenance of the transceiver should be in accordance with the transceiver's installation manual, and the National Electrical Code.4. Tampering or replacement with non-factory components may adversely affect the safe use of the transceiver in hazardous loca-tions, and may void the approval.5. When installed in a Class I, Div. 2, Groups A, B, C or D hazardous location, observe the following: WARNING —EXPLOSION HAZARD— Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous. Refer to Articles 500 through 502 of the National Electrical Code (NFPA 70) for further information on hazardous locations and approved Division 2 wiring methods.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide v Revision Notice 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. Distress Beacon Warning In the U.S.A., the 406 to 406.1 MHz band is reserved for use by distress beacons. Since the radio described in this manual is capable of transmit-ting in this band, take precautions to prevent the radio from transmitting between 406 to 406.1 MHz in U.S. applications. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.Any unauthorized modification or changes to this device without the express approval of Microwave Data Systems may void the user’s authority to operate this device.FCC Notice, U.S.A.
vi MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 1 1.0 GENERAL 1.1 Introduction This guide presents installation and operating instructions for the MDS 4710/9710 Series (400/900 MHz) digital radio transceivers.These transceivers (Figure 1) are data telemetry radios designed to operate in a point-to-multipoint environment, such as electric utility Supervisory Control and Data Acquisition (SCADA) and distribution automation, gas field automation, water and wastewater SCADA, and on-line transaction processing applications. They use microprocessor control and Digital Signal Processing (DSP) technology to provide highly reliable communications even under adverse conditions.Modulation and demodulation is accomplished using Digital Signal Pro-cessing (DSP). DSP adapts to differences between components from unit to unit, and ensures consistent and repeatable performance in ambient temperatures from –30 to +60 degrees Centigrade. The use of Digital Signal Processing eliminates the fluctuations and variations in modem operation that degrade operation of analog circuits.The transceiver is designed for trouble-free operation with data equip-ment provided by other manufacturers, including Remote Terminal Units (RTUs), flow computers, lottery terminals, automatic teller machines, programmable logic controllers, and others. NOTE: Some features may not be available on all radios, based on theoptions purchased and based on the applicable regulatory constraints for the region in which the radio will operate. Invisible place holder Figure 1. Transceiver Connectors and IndicatorsEXTERNAL INTERFACECONNECTOR(DB-25)DIAGNOSTICS CONNECTOR (RJ-11)13.8 VDC POWER CONNECTORANTENNA CONNECTOR(TYPE “N”)SERIAL NUMBERLABELLED INDICATORS (4)
2 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B 1.2 Applications Point-to-Multipoint, Multiple Address Systems (MAS) This is the most common application of the transceiver. It consists of a central master station and several associated remote units as shown in Figure 2. An MAS network provides communications between a central host computer and remote terminal units (RTUs) or other data collection devices. The operation of the radio system is transparent to the computer equipment.Often, however, a radio system consists of many widely separated remote radios. A point-to-multipoint or SCADA (Supervisory Control and Data Acquisition) system may be a new installation for automatic, remote monitoring of gas wells, water tank levels, electric power distri-bution system control and measurement, etc.The radio system may replace a network of remote monitors currently linked to a central location via leased telephone line. At the central office of such a system, there is usually a large mainframe computer and some means of switching between individual lines coming from each remote monitor. In this type of system, there is a modulator/demodulator (modem) at the main computer, and at each remote site, usually built into the remote monitor itself. Since the cost of leasing a dedicated-pair phone line is quite high, a desirable alternative may be replacing the phone line with a radio path. Invisible place holder Figure 2. Typical MAS Point-to-Multipoint NetworkIDIAG13.8 VDCPWR+ HOST SYSTEMREMOTE RADIOSWC OFFRTURTURTURTUIDIAG13.8 VDCPWR+ IDIAG13.8 VDCPWR+ IDIAG13.8 VDCPWR+ IDIAG13.8 VDCPWR+ RTUMDS MASTERSTATIONCONTINUOUSLYKEYEDREMOTE RADIOSWC OFFREMOTE RADIOSWC OFFREMOTE RADIOSWC OFFREMOTE RADIOSWC OFF
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 3 Point-to-Point System Where permitted, the transceiver may also be used in a point-to-point arrangement. A point-to-point system consists of just two radios—one serving as a master and the other as a remote—as shown in Figure 3. It provides a simplex or half-duplex communications link for the transfer of data between two locations. Invisible place holder Figure 3. Typical Point-to-Point Link Continuously Keyed versus Switched Carrier Operation The keying behavior of the master station can be used to describe an MAS system. Continuously Keyed operation means the master station transmitter is always keyed and an RF carrier is always present, even when there is no data to send. The master station is always simultaneously transmitting and continuously listening. Different frequencies must be used for transmit and receive. This is the method used in many MAS systems, and is shown in Figure 2. This is useful for high-speed polling applica-tions. NOTE: 4710/9710 remotes do not support full-duplex operation. Switched Carrier operation is a half-duplex mode of operation where the master station transmitter is keyed to send data and unkeyed to receive. Single Frequency (Simplex) Operation Single frequency operation (also known as simplex) is a special case of switched carrier operation. Single frequency operation is automatically selected whenever the transmit and receive frequencies are set to the same value. Note that data turn-around times are increased when a single frequency configuration is used. 1.3 Model Number Codes The radio model number is printed on the end of the radio enclosure, and provides key information about how the radio was configured when it was shipped from the factory. See Figure 4 and Figure 5 for an explana-tion of the model number characters.REMOTEMASTERHOSTCOMPUTERRTU
4 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B Invisible place holder Figure 4. 4710 Model Number Codes Invisible place holder Figure 5. 9710 Model Number Codes 1.4 Accessories The transceiver can be used with one or more of the accessories listed in Table 1. Contact Microwave Data Systems for ordering information.THIS INFORMATION IS SUBJECT TO CHANGE.DO NOT USE FOR PRODUCT ORDERING. 4710A/COPERATIONX= Base/RemoteMODEN= Non-redundantINPUT VOLTAGE1= 10.5 to 16 VDCMODEMB= 9600 BPSDIAGNOSTICS0= NONE1= Non-IntrusiveBANDWIDTH1= 12.5 KHz2= 25 KHz (19.2 Kbps)FEATURES0= FullAGENCYN= N/ASAFETYN= N/AMOUNTING BRACKETSA= StandardB= NoneC= 19200 (25kHz)RECEIVE FREQUENCY(A) 380-400 MHz* (B) 400-420 MHz(C) 420-450 MHz(D) 450-480 MHz(E) 480-512 MHz(L4) 406-430 MHz**TRANSMIT FREQUENCY(1) 380-400 MHz*Not Available with FCC or IC(2) 400-420 MHz(3) 420-450 MHz(4) 450-480 MHz**** Only available with RX optionF= FCC/IC (F) CSA/FM/UL(L4) 406-430 MHzTHIS INFORMATION IS SUBJECT TO CHANGE.DO NOT USE FOR PRODUCT ORDERING. 9710A/COPERATIONX= Base/RemoteMODEN= Non-redundantINPUT VOLTAGE1= 10.5 to 16 VDCMODEMB= 9600 BPSDIAGNOSTICS0= NONE1= Non-IntrusiveBANDWIDTH1= 12.5 KHz2= 25 KHz (19.2 Kbps)FEATURES0= FullAGENCYN= N/ASAFETYN= N/AMOUNTING BRACKETSA= StandardB= NoneC= 19200 (25kHz)RECEIVE FREQUENCY(A) 800-860 MHz* (B) 860-900 MHz(C) 900-960 MHz TRANSMIT FREQUENCY(1) 800-880 MHz*Not Available with FCC or IC(2) 880-960 MHzF= FCC/IC (F) CSA/FM/UL
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 5 Table 1. MDS 4710/9710 Optional Accessories Accessory Description MDS P/N Hand-Held TerminalKit (HHT) Terminal that plugs into the radio for programming, diagnostics & control. Includes carrying case and cable set.02-1501A01RTU Simulator Test unit that simulates data from a remote terminal unit. Comes with polling software that runs on a PC. Useful for testing radio operation.03-2512A01Order Wire Module External device that allows temporary voice communication. Useful during setup & testing of the radio system.02-1297A01Order Wire Handset Used with Order Wire Module (above). 12-1307A01RJ-11 to DB-9 adapter Used to connect a PC to the radio’s DIAG. port 03-3246A01EIA-232 to EIA-422 Converter Assembly External adapter plug that converts the radio’s DATA INTERFACE connector to EIA-422 compatible signaling.03-2358A01Radio Configuration Software Provides diagnostics of the transceiver (Windows-based PC required.) 03-3156A01
6 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B 2.0 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 will prove helpful in understanding the operation of the trans-ceiver. Active Messaging —This is a mode of diagnostic gathering that may interrupt SCADA system polling communications (contrast with pas-sive messaging ). Active (or intrusive) messaging is much faster than passive messaging because it is not dependent upon the RTU polling cycle. Antenna System Gain —A figure, normally expressed in dB, repre-senting 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.Decibel (dB)—A measure computed from the ratio between two signal levels. Frequently used to express the gain (or loss) of a system.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 MDS 4710/9710 is a DCE device.Digital Signal Processing—See DSP.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 7DSP—Digital Signal Processing. In the MDS 4710/9710 transceiver, the DSP circuitry is responsible for the most critical real-time tasks; pri-marily modulation, demodulation, and servicing of the data port.DTE—Data Terminal Equipment. A device that provides data in the form of digital signals at its output. Connects to the DCE device.Equalization—The process of reducing the effects of amplitude, fre-quency or phase distortion with compensating networks.Fade Margin—The greatest tolerable reduction in average received signal strength that will be 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 to 30 dB is usually sufficient in most systems.Frame—A segment of data that adheres to a specific data protocol and contains definite start and end points. It provides a method of synchro-nizing transmissions.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 transmis-sion 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.Intrusive Diagnostics—A mode of remote diagnostics that queries and commands radios in a network with an impact on the delivery of the system “payload” data. See Active messaging.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 pur-pose of gathering telemetry data.Master (Station)—Radio which is connected to the host computer. It is the point at which polling enters the network.MCU—Microcontroller Unit. This is the processor responsible for con-trolling system start-up, synthesizer loading, and key-up control.Microcontroller Unit—See MCU.Multiple Address System—See MAS.
8 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BNetwork-Wide Diagnostics—An advanced method of controlling and interrogating MDS radios in a radio network.Non-intrusive diagnostics—See Passive messaging.Passive messaging—This is a mode of diagnostic gathering that does not interrupt SCADA system polling communications. Diagnostic data is collected non-intrusively over a period of time; polling messages are carried with SCADA system data (contrast with active messaging).Payload data—This is the application’s user communication data which is sent over the radio network. It is the transfer of payload data that is the primary purpose of the radio communications network.Point-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.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.Programmable Logic Controller—See PLC.Remote (Station)—A radio in a network that communicates with an associated master station.Remote Terminal Unit—See RTU.Redundant Operation—A station arrangement where two transceivers and two power supplies are available for operation, with automatic switchover in case of a failure.RTU—Remote Terminal Unit. A data collection device installed at a remote radio site. An internal RTU simulator is provided with 4710/9710 radios to isolate faults to either the external RTU or the radio.SCADA—Supervisory Control And Data Acquisition. An overall term for the functions commonly provided through an MAS radio system.Standing Wave Ratio—See SWR.Supervisory Control And Data Acquisition—See SCADA.SWR—Standing Wave Ratio. A parameter related to the ratio between forward transmitter power and the reflected power from the antenna system. As a general guideline, reflected power should not exceed 10% of the forward power (≈ 2:1 SWR).
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 93.0 INSTALLATIONThere are three main requirements for installing the transceiver—ade-quate and stable primary power, a good antenna system, and the correct data connections between the transceiver and the data device. Figure 6 shows a typical remote station arrangement.Invisible place holderFigure 6. Typical Remote Station Arrangement3.1 Installation StepsBelow are the basic steps for installing the transceiver. In most cases, these steps alone are sufficient to complete the installation. More detailed explanations appear at the end of these steps.1. Mount the transceiver to a stable surface using the brackets supplied with the radio.2. Install the antenna and antenna feedline for the station. Preset direc-tional antennas in the desired direction.3. Connect the data equipment to the transceiver’s DATA INTERFACE connector. Use only the required pins for the application—Do not use a fully pinned (25 conductor) cable. Basic applications may require only the use of Pin 2 (transmit data—TXD), Pin 3 (Received Data—RXD) and Pin 7 (signal ground). The radio can be keyed 13.8 VDCPOWER CABLE13.8 VDC2.5 A (Minimum)POWER SUPPLYREMOTE TERMINAL UNIT ANTENNA SYSTEMLOW-LOSS FEEDLINERADIO TRANSCEIVER
10 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. Bwith the use of the DATAKEY command.Additional connections may be required for some installations. Refer to the complete list of pin functions provided in Table 4 on page 14.4. Measure and install the primary power for the radio. The red wire on the power cable is the positive lead; the black is negative.NOTE: Use the radio in negative ground systems only.5. Set the radio configuration. The transceiver is designed for quick installation with a minimum of software configuration required in most cases. The selections that must be made for new installations are:•Transmit frequency•Receive frequencyThe operating frequencies are not set at the factory unless they were specified at the time of order. Determine the transmit and receive frequencies to be used, and follow the steps below to program them.6. Connect a hand-held terminal (HHT) to the DIAG. connector. When the HHT beeps, press to receive the ready “>” prompt.a. Set the operating frequencies using the TX xxx.xxxx (transmit) and RX xxx.xxxx (receive) commands.Press after each command. After programming, the HHT reads PROGRAMMED OK to indicate successful entry.ENTERENTER
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 113.2 Transceiver MountingFigure 7 shows the mounting dimensions of the transceiver.Invisible place holderFigure 7. Transceiver Mounting Dimensions3.3 Antennas and FeedlinesAntennasThe transceiver can be used with a number of antennas. The exact style depends on the physical size and layout of the radio system. A direc-tional Yagi (Figure 8) or corner reflector antenna is generally recom-mended at remote sites to minimize interference to and from other users. Antennas of this type are available from several manufacturers.8.5"216 mm1.75"4.44 CM6.63"168 mm2.75"70 mm7.25"184 mmALTERNATEPOSITION5.625"143 mm2.25"57 mm2.0"50 mm
12 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BInvisible place holderFigure 8. Typical Yagi Antenna (mounted to mast)FeedlinesThe selection of antenna feedline is very important. Poor quality cables should be avoided as they will result in power losses that may reduce the range and reliability of the radio system.Table 2 and Table 3 show the losses that will occur when using various lengths and types of cable at 400 and 960 MHz. Regardless of the type of cable used, it should be kept as short as possible to minimize signal loss.Table 2. Length vs. Loss in Coaxial Cables at 400 MHzCable Type 10 Feet(3.05 Meters) 50 Feet(15.24 Meters) 100 Feet(30.48 Meters) 500 Feet(152.4 Meters)RG-8A/U 0.51dB 2.53 dB 5.07 dB 25.35 dB1/2 inch HELIAX 0.12 dB 0.76 dB 1.51 dB 7.55 dB7/8 inch HELIAX 0.08 dB 0.42 dB 0.83 dB 4.15 dB1-1/4 inch HELIAX 0.06 dB 0.31 dB 0.62 dB 3.10 dB1-5/8 inch HELIAX 0.05 dB 0.26 dB 0.52 dB 2.60 dBTable 3. Length vs. Loss in Coaxial Cables at 960 MHzCable Type 10 Feet(3.05 Meters) 50 Feet(15.24 Meters) 100 Feet(30.48 Meters) 500 Feet(152.4 Meters)RG-8A/U 0.85 dB 4.27 dB 8.54 dB 42.70 dB1/2 inch HELIAX 0.23 dB 1.15 dB 2.29 dB 11.45 dB7/8 inch HELIAX 0.13 dB 0.64 dB 1.28 dB 6.40 dB1-1/4 inch HELIAX 0.10 dB 0.48 dB 0.95 dB 4.75 dB1-5/8 inch HELIAX 0.08 dB 0.40 dB 0.80 dB 4.00 dB
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 133.4 Power ConnectionThe transceiver can be operated from any well-filtered 10.5 to 16 Vdc power source. The power supply should be capable of providing at least 2.5 amperes of continuous current.The red wire on the power cable is the positive lead; the black is nega-tive.NOTE: The radio is designed for use only in negative ground systems.3.5 Data Interface ConnectionsThe transceiver’s DATA INTERFACE connector is used to connect the transceiver to an external DTE data terminal that supports the EIA-232 (formally RS-232) format. The transceiver supports asynchronous data rates of up to 38400 bps. The data rate at the DATA INTERFACE connector may differ from the data rate used over the air.Table 4 lists each pin on the DATA INTERFACE connector and describes its function.Do not use a 25 wire (fully pinned) cable for connection to the DATA INTERFACE connector. Use only the required pins for the application. Damage may result if improper connections are made. Typical applica-tions require the use of only Pins 1 through 8 for EIA-232 signaling.3.6 Using the Radio’s Sleep ModeIn 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 using the Sleep Mode. In this mode, power consumption is reduced to less than 16 milliamperes (nominal).Sleep mode can be enabled under RTU control by asserting a ground (or RS-232 low) on Pin 12 of the radio’s DATA INTERFACE connector.When Pin 12 is opened (or an RS-232 high is asserted), the radio will be ready to receive data within 75 milliseconds.All normal functions are suspended while the radio is in sleep mode. The PWR LED will be off, except for a quick flash every five seconds.System ExampleThe following example describes Sleep Mode implementation in a typ-ical system. Using this information, you should be able to configure a system that will meet your own particular needs.CAUTIONUSEONLY REQUIREDPINS
14 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BSleep Mode Example:Suppose you need communications to each remote site only once per hour. Program the RTU to raise an RS-232 line once each hour (DTR for example) and wait for a poll and response before lowering it again. Connect this line to Pin 12 of the radio’s DATA INTERFACE connector. This will allow each RTU to be polled once per hour with a significant savings in power con-sumption.Table 4. DATA INTERFACE Connector Pinouts PinNumber Input/Output Pin Description1--Protective Ground. Connects to ground (negative supply potential) on the radio’s PC board and chassis.2INTXD—Transmitted Data. Accepts TX data from the connected device.3 OUT RXD—Received Data. Outputs received data to the connected device.4INRTS—Request-to-Send Input. Keys the transmitter when RTS is at logic high.5 OUT CTS—Clear-to-Send Output. Goes “high” after the programmed CTS delay time has elapsed (DCE) or keys an attached radio when RF data arrives (CTS KEY).6 OUT DSR—Data Set Ready. Provides a +6 Vdc DSR signal through a 2.5 kΩ resistor.7--Signal Ground. Connects to ground (negative supply potential) at radio’s PC board.8 OUT DCD—Data Carrier Detect. Goes “high” when the modem detects a data carrier from the master station.9INTransmit Audio Input. Connects to the audio output of an external (AFSK) modem. The input impedance is 600 Ω. Use Pin 7 for the modem’s return lead.10 OUT RUS—Receiver Unsquelched Sensor. Not used in most installations, but is available as a convenience. Provides +8 Vdc through a 1 kΩ resistor whenever the receiver squelch is open, and drops to less than 1 Vdc when the squelch is closed.11 OUT Receive Audio Output. Connects to the audio input of an external (AFSK) modem. The output impedance is 600 Ω, and the level is factory set to suit most installations. Use Pin 7 for the modem’s return lead.12 IN Radio Inhibit (Sleep). A ground on this pin places the radio into the “sleep” mode. It turns off most circuits in the radio, including transmit, receive, modem and diagnostic functions. This allows for greatly reduced power consumption, yet preserves the radio’s ability to be quickly brought online.13 -- Do not connect—Reserved for future use.14 IN PTT—Push to Talk. This line is used to key the radio with an active-high signal of +5 Vdc.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 15Invisible place holder4.0 OPERATIONIn-service operation of the transceiver is completely automatic. Once the unit has been properly installed and configured, operator actions are limited to observing the front panel LED status indicators for proper operation.If all parameters are correctly set, operation of the radio can be started by following these steps:1. Apply DC power to the transceiver.2. Observe the LED status panel for the proper indications (Table 5).3. If not done earlier, refine the antenna heading of the station to maxi-mize the received signal strength (RSSI) from the master station.Use the RSSI command from an HHT connected to the radio’s DIAG. 15 -- .Remote RTU Reset. Do not connect. Reserved for future use.16 IN PTT—Push to Talk. This line is used to key the radio with an active-low signal of 0 Vdc. 17 -- Do not connect—Reserved for future use.18 IN/OUT Accessory Power. Unregulated Input/Output. Provides a source of input power for low current accessories. Excessive drain on this connection will trip self-resetting fuse F1 on the transceiver PC board. The voltage at this pin will match the input voltage to the transceiver.19 OUT 9.9 Vdc Regulated Output. Provides a source of regulated voltage at 100 mA for low power accessories.20 -- Do not connect—Reserved for future use.21 OUT RSSI—Received Signal Strength Indication. A DC voltmeter may be connected to this pin to read the relative strength of the incoming signal. Figure 9 is a chart showing RSSI vs. DC voltage.22 -- Do not connect—Reserved for future use.23 IN Diagnostic Channel Enable. A ground on this pin causes the radio’s microcontroller to open the DB-25 DATA INTERFACE for diagnostics and control instead of the normal RJ-11 DIAG. connection.24 -- Do not connect—Reserved for future use.25 OUT Alarm. A logic low (less than 0.5 volts) on this pin indicates normal operation. A logic high (greater than 4 volts) indicates that some alarm condition is present. This pin can be used as an alarm output, provided the internal series resistance of 1 kΩ is considered.Table 4. DATA INTERFACE Connector Pinouts (Continued)PinNumber Input/Output Pin Description
16 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. Bconnector.—See Section 5.0, TRANSCEIVER PROGRAMMING on page 17. This can also be done with a DC voltmeter as described in Section 4.2, RSSI Measurement (page 16).4.1 LED IndicatorsTable 5 describes the function of each status LED.4.2 RSSI MeasurementAs an alternative to using an HHT, the radio’s received signal strength (RSSI) may be read with a DC voltmeter connected to Pin 21 of the DATA INTERFACE connector. Figure 9 shows the relationship between received signal level and the DC voltage on Pin 21 of the DATA INTER-FACE connector. (Note: Readings are not accurate for incoming signal strengths above –50 dBm.)Invisible place holderFigure 9. RSSI vs. Vdc (Typical)PWR DCD TXD RXDTable 5. LED Status Indicators LED Name DescriptionPWR • Continuous—Power is applied to the radio, no problems detected.• Rapid flash (five times per second)—Fault indication.• Flashing once every 5 seconds—Radio is in Sleep mode.DCD • Flashing—Indicates the radio is receiving intermittent data frames.• Continuous—Radio is receiving a data signal from a continuously keyed radio.TXD An EIA-232 mark signal is being received at the DATA INTERFACE connector.RXD An EIA-232 mark signal is being sent out from the DATA INTERFACE connector.22.533.54–110–90–70–50+ DC VOLTS (PIN 21)SIGNAL LEVEL (dBm)4.55.0
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 175.0 TRANSCEIVER PROGRAMMINGProgramming and control of the transceiver is performed through the radio’s RJ-11 DIAG. (Diagnostics) connector with an MDS Hand-Held Terminal (MDS P/N 02-1501A01). This section contains a reference chart (Table 7) and detailed descriptions for each user command.NOTE: In addition to HHT control, Windows-based software is avail-able (MDS P/N 03-3156A01) to allow diagnostics andprogramming using a personal computer. An installationbooklet and on-line instructions are included with the soft-ware. Contact MDS for ordering information.5.1 Hand-Held Terminal Connection & StartupThis section gives basic information for connecting and using the MDS Hand-Held Terminal. For more information about the terminal, refer also to the instructions included with each HHT kit.The steps below assume that the HHT has been configured for use with the transceiver (80 character screen display). If the HHT was previously used with a different model transceiver, or if its default settings have been changed, refer to Section 5.2, Hand-Held Terminal Setup (page 18) for setup details.Follow these steps to connect the HHT:1. Connect the HHT’s coiled cord to the DIAG. (RJ-11) jack on the radio as shown in Figure 10. This automatically places the radio into the control and programming mode.As an alternative, the DATA INTERFACE (DB-25) connector may be used for programming instead of the DIAG. jack. With this arrange-ment, Pin 23 of the HHT cable must be grounded to enable the diag-nostic channel. (See Table 4 on page 14.)2. When the HHT is connected, it runs through a brief self-check, ending with a beep. After the beep, press to receive the ready “>” prompt. ENTER
18 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BInvisible place holderFigure 10. Hand-Held Terminal Connected to the Transceiver5.2 Hand-Held Terminal SetupThe following is a set of instructions for re-initializing an HHT for use with the transceiver. These steps may be required if the HHT was previ-ously used with a different radio, or if the HHT default settings have been inadvertently altered.1. Plug the HHT into the DIAG. connector. Enable the setup mode by pressing the , and keys in sequence. The display shown in Figure 11 appears.Invisible place holderFigure 11. HHT Setup Display2. The first of 15 menu items is displayed. Settings are reviewed by pressing the NEXT function controlled by the key. Parameter set-tings are changed by pressing the ROLL function controlled by the key.ANTENNA13.8 VDC+ –ZCTRLU+–K*F/AF1V,Q#)G(BF2SHIFT ESCW=R7M4H1CF3BKSPX0S8N5I2DF4SPACEYT9O63EF5ENTERJLPSHIFTCTRLSPACEFF1FFFEA
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 193. Set up the HHT as listed in Table 6.5.3 Keyboard CommandsTable 7 is a reference chart of software commands for the transceiver. Programmable information is shown in brackets [ ] following the com-mand name. See Section 5.4, Detailed Command Descriptions (page 22) for detailed command descriptions.Entering CommandsTo enter a command, type the command, followed by an key-stroke. For programming commands, the command is followed by and the appropriate information or values, then .Here are some additional points to remember when using the HHT:•Use the key to access numbers; press again to return to letter mode.•Use the key to edit information or commands entries.•The flashing square cursor ( ) indicates that letter mode is selected.•The flashing superscript rectangular cursor ( ) indicates that number mode is selected.Error MessagesListed below are some possible error messages encountered when using the HHT:UNKNOWN COMMAND—The command was not recognized. Refer to the command description for command usage information.INCORRECT ENTRY—The command format or its associated values were not valid. Refer to the command description for command usage infor-mation.Table 6. HHT Operational Settings Parameter Setting Parameter SettingRe-init HT NO Scroll On 33rdBaud Rate 9600 Cursor ONComm bits 8,1,n CRLF for CR OFFParity Error OFF Self Test FASTKey Repeat OFF Key Beep ONEcho OFF Screen Size 80Shift Keys YES Menu Mode LONGCtl Chars PROCSENTERSPACE ENTERSHIFTESC/BKSP
20 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BCOMMAND FAILED—The command was unable to successfully complete. This is a possible internal software problem.NOT PROGRAMMED—Software was unable to program the internal radio memory or the requested item was not programmed.This is a serious internal radio error. Contact MDS.TEXT TOO LONG—Response to OWN or OWM command when too many characters have been entered. Refer to the command description for command usage information.NOT AVAILABLE—The entered command or parameter was valid, but it referred to a currently unavailable choice. Refer to the command description for command usage information.ACCESS DENIED—The command is unavailable to the user. Refer to the command descriptions for command information.EEPROM FAILURE— The INIT command was unable to write to EEPROM. This is a serious internal radio error. Contact MDS.Table 7. Command summary Command name Function AMASK [0000 0000–FFFF FFFF] Details page 22 Set or display hex code identifying which events trigger an alarm. ASENSE [HI/LO] Details page 23 Set or display the state of the alarm output signal to ACTIVE HI or ACTIVE LO. BAUD [xxxxx abc] Details page 23 Set or display the DATA INTERFACE data rate and control bits. BUFF [ON, OFF] Details page 24 Enables or disables the internal radio data buffer. CTS [0–255] Details page 24 Set or display the Clear-to-Send delay in seconds. CKEY [ON–OFF] Details page 24 Enables or disables the continuously keyed mode. Note: Remotes cannot receive when keyed. DATAKEY [ON, OFF] Details page 24 Toggles between key-on-data and key-on-RTS. DKEY Details page 25 Dekey the radio (transmitter OFF). This is generally a radio test command. DLINK [ON/OFF/xxxx] Details page 25 Configures local diagnostic link protocol. DMGAP [xx] Details page 25 (diagnostics) Sets the amount of time to wait after the receipt of a character before interpreting the next received character as the start of a new message. DTYPE [NODE/ROOT] Details page 26 (diagnostics) Sets up a radio as a root or node radio.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 21 DUMP Details page 26 Display all programmable settings. HREV Details page 26 Display the Hardware Revision level. INIT Details page 26 Set radio parameters to factory defaults. INIT [4710/9710] Details page 26 Configure radio for use without P-20 chassis. Restores certain transceiver defaults before using the INIT x720 command. INIT [4720/9720] Details page 27 Configure radio for use with P-20 chassis. KEY Details page 27 Key the radio (transmitter ON). This is generally a radio test command. MODEL Details page 27 Display the model number of the radio. MODEM [xxxx, NONE] Details page 27 Set the modem characteristics of the radio. OWM [XXX...] Details page 27 Set or display the owner’s message. OWN [XXX...] Details page 27 Set or display the owner’s name. PTT [0–255] Details page 27 Set or display the Push-to-Talk delay in milliseconds. PWR [20–37] Details page 27 Set or display the transmit power setting. RSSI Details page 28 Display the Received Signal Strength Indication. RTU [ON/OFF/0-80] Details page 28 Re-enables or disables the radio’s internal RTU simulator and sets the RTU address. RX [xxx.xxxx] Details page 28 Set or display receiver frequency. RXTOT [NONE, 1-255] Details page 28 Set or display the value of the receive time-out timer. SCD [0-255] Details page 29 Set or display the Soft-carrier Dekey delay in milliseconds. SER Details page 29 Display the radio serial number. SHOW [DC, PORT, PWR] Details page 29 Display the DC voltages, diagnostics port, and transmit power level. SREV Details page 29 Display the Software Revision Level. STAT Details page 29 Display radio status and alarms. TEMP Details page 30 Display the internal temperature of the radio in degrees C. TOT [1-255, ON, OFF] Details page 30 Set or display the Time-out Timer delay in seconds. TX [xxx.xxxx] Details page 30 Set or display the transmit frequency. UNIT [10000...65000] Details page 30 Set or display the transceiver’s unit address.Table 7. Command summary (Continued)Command name Function
22 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B5.4 Detailed Command DescriptionsThe only critical commands for most applications are transmit and receive frequencies (RX xxx.xxxx, TX xxx.xxxx). However, proper use of the additional commands allows you to tailor the transceiver for a specific use, or conduct basic diagnostics on the radio. This section gives more detailed information for the user commands previously listed in Table 7 (page 20).In many cases, the commands shown here can be used in two ways. First, you can type only the command name to view the currently pro-grammed data. Secondly, you can set or change the existing data by typing the command, followed by a space, and then the desired entry. In the list below, allowable programming variables, if any, are shown in brackets following the command name.AMASK [0000 0000–FFFF FFFF]The AMASK command displays or sets which events cause the alarm output signal to be active. Normally, the mask is FFFF FFFF, meaning that any of the 32 possible events will activate the alarm output signal.Entering the AMASK command alone displays the current setting of alarm events in hexadecimal format.Entering the AMASK command followed by an eight-digit hexadecimal number reprograms the specified events to trigger an alarm.The eight-digit hexadecimal number used as the command parameter is used to classify up to 32 events as alarm triggers, or disable alarm noti-fication for an event. (See Table 8 below for a list of events.) The hex value for the mask corresponds to the hex value for the STAT command (page 29). Each bit that is a ‘1’ identifies the associated alarm condition as a major alarm. Each bit that is a ‘0’ disables major alarm notification for that condition. If both the major and minor alarm bits are set to ‘0’ for that condition, alarm notification is entirely disabled. For more infor-mation on configuring the alarm response, contact Microwave Data Sys-tems.Table 8. Text messages of alarm event codes Event Number Text Message01 Hardware mismatch02 Model number not programmed03 Authorization fault04 Synthesizer out-of-lock07 Voltage regulator fault detected08 Radio not calibrated09 DSP download fault10 EEPROM write failure
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 23ASENSE [HI/LO]The ASENSE command sets or displays the sense of the alarm output at Pin 25 of the DATA INTERFACE connector.Entering the ASENSE command alone shows whether the alarm output is active high or low. Entering the ASENSE command followed by HI or LO resets the alarm output to active high or low.BAUD [xxxxx abc]This command sets (or displays) the communication attributes for the DATA INTERFACE port. It has no effect on the RJ-11 DIAG. port.The first parameter (xxxxx) is baud rate. Baud rate is specified in bits-per-second (bps) and must be one of the following speeds: 110, 300, 1200, 2400, 4800, 9600, 19200, or 38400.The second parameter of the BAUD command (abc) is a three-character block indicating how the data is encoded:a = Data bits (7 or 8)b = Parity (N for None, O for Odd, E for Even)c = Stop bits (1 or 2)The factory default setting is 9600 baud, 8 data bits, no parity, 1 stop bit (Example: 9600 8N1).NOTE: 7N1, 8O2, and 8E2 are invalid communication settings and arenot supported by the transceiver.11 Checksum fault12 Receiver time-out16 Unit address not programmed17 Data parity error18 Data framing error20 Configuration error25 6V regulator output not in valid range26 DC input power is not in valid range31 Internal Temperature not in valid rangeTable 8. Text messages of alarm event codes (Continued)Event Number Text Message
24 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BBUFF [ON, OFF]This command sets or displays the received data handling mode of the radio. The command parameter is either ON or OFF. The default is ON. The setting of this parameter affects the timing of how received RF data is sent out the INTERFACE connector. Outgoing (transmitted) data is not affected by this setting.If data buffering is OFF, the radio operates with the lowest possible average latency. Data bytes are thus sent out the INTERFACE port as soon as an incoming RF data frame is disassembled. Average and typical latency will both be below 10 ms, but idle character gaps may be intro-duced into the outgoing data flow.If data buffering is ON, the radio operates in seamless mode. Data bytes will be sent over the air as quickly as possible, but the receiver buffers (stores) the data until enough bytes have arrived to cover worst-case gaps in transmission. This mode of operation is required for protocols such as MODBUS™ that do not allow gaps in their data transmission.Note that seamless mode (BUFF ON) is intended only for applications where the transmitter’s baud rate is greater than or equal to the receiver’s baud rate. Enforcement of this rule is left up to the user.CKEY [ON–OFF]The CKEY command enables or disables the continuously-keyed func-tion of the radio. When CKEY is set to ON, the radio is continuously keyed.CTS [0–255]The CTS (clear-to-send) command selects or displays the timer value associated with the CTS line response. The command parameter ranges from 0 to 255 milliseconds.For DCE operation, the timer specifies how long to wait after the RTS line goes high, before the radio asserts CTS and the DTE can transmit the data. A CTS value of zero keys the radio and asserts the CTS line immediately after the RTS line goes high.For CTS Key operation (see DEVICE command), the timer specifies how long to wait after asserting the CTS, before sending data out the DATA INTERFACE port. A timer value of zero means that data will be sent out the data port without imposing a key-up delay. (Other delays may be present based on selected radio operating parameters.)DATAKEY [ON, OFF]The DATAKEY command enables or disables the ability of the radio to key the transmitter as data is received at the DATA INTERFACE connector. Asserting RTS keys the radio regardless of this command setting.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 25If DATAKEY is set to ON, the radio will key when a full data-character is received at the transceiver’s DATA INTERFACE connector. If DATAKEY is set to OFF, the radio needs to be keyed by asserting either the RTS or PTT signal or with the CKEY or KEY command.DEVICE [DCE, CTS KEY]The DEVICE command controls or displays the device behavior of the radio. The command parameter is either DCE or CTS KEY.The default selection is DCE. In this mode, CTS will go high following RTS, subject to the CTS programmable delay time. If the DATAKEY com-mand is set to ON, keying can be stimulated by the input of characters at the data port. Hardware flow control is implemented by signaling the CTS line if data arrives faster than it can be buffered and transmitted.If CTS KEY is selected, the radio is assumed to be controlling another radio. The RTS line is ignored and the CTS line is used as a keyline con-trol for the other radio. CTS is asserted immediately following the receipt of RF data, but data will not be sent out the DATA INTERFACE port until after the CTS programmable delay time has expired. (This gives the other radio time to key.)DKEYThis command deactivates the transmitter after it has been keyed with the KEY command.DLINK [ON/OFF/xxxx]This command is used to configure the local diagnostic link protocol used in network-wide diagnostics.Entering DLINK ON enables the diagnostic link. Entering DLINK OFF dis-ables the diagnostic link.To change the diagnostic link, enter DLINK followed by one of the fol-lowing baud rates: 1200, 2400, 4800, 9600, 19200 (default).DMGAP [xx]The DMGAP command sets the amount of time in milliseconds to wait after the receipt of a character before interpreting the next received char-acter as the start of a new message. When data port baud rates are slow, the gap between characters within a poll may be so long that the radio interprets the next character as the start of a new poll. When diagnostics is being performed using passive messaging (see Performing Net-work-Wide Remote Diagnostics on page 37), this command may be used to change this behavior.
26 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BDTYPE [NODE/ROOT]This command establishes the local radio as a root radio or node radio for network-wide diagnostics. Entering DTYPE NODE configures the radio as a node radio. Entering DTYPE ROOT configures the radio as a root radio. Entering the DTYPE command alone displays the current setting. See “Performing Network-Wide Remote Diagnostics” on page 37.DUMPThis command displays all the programmed settings with this one com-mand. The HHT display is too small to list all the command settings at one time. Therefore, this command is most useful if the command is issued from a computer or full-screen terminal.HREVThis command displays the transceiver’s hardware revision level.INITThe INIT command is used to re-initialize the radio’s operating parame-ters to the factory defaults. This may be helpful when trying to resolve configuration problems that may have resulted from the entry of one or more improper command settings. If you are unsure of which command setting may have caused the problem, this command allows you to get back to a known working state. The following changes to the radio are made when INIT is entered:•CTS is set to 0•DATAKEY is set to ON•DEVICE is set to DCE•PTT is set to 0•SCD is set to 0•TOT is set to 30 seconds and set to ON•PWR is set to +37 dBm (5 watts)All other commands stay in the previously established setting.INIT [4710/9710]This command sets the transceiver for operation outside the P-20 chassis by setting the following parameters as shown:ASENSE ACTIVE HIAMASK FFFF FFFF (assert alarm output on all alarms)RXTOT NONE (receive time-out timer disabled)This command can be used prior to using the INIT x720 command to restore the standard transceiver defaults
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 27INIT [4720/9720]This command sets the transceiver for operation inside the P-20 chassis by setting the following parameters as shown:ASENSE ACTIVE LOAMASK FFFF 0000 (trigger on major alarms)RXTOT 20 (20 minute time-out timer)KEYThis command activates the transmitter. See also the DKEY command.MODELThis command displays the radio’s model number code.MODEM [xxxx, NONE]This command selects the radio’s modem characteristics. For digital operation enter 9600 (MDS x710A) or 19200 (MDS x710C). For analog operation, enter NONE.OWM [XXX...]This is a command to display or program an owner’s message. To pro-gram the owner’s message, type OWM then the message, followed by .To display the owner’s message, type OWM then . The owner’s message appears on the display.OWN [XXX...]This is a command to display or program an owner’s name. To program the owner’s name, type OWN then the name, followed by .To display the owner’s name, type OWN then . The owner’s name appears on the display.PTT [0–255]This command sets or displays the key-up delay in milliseconds.This timer specifies how long to wait after the radio receives a key signal from either the PTT or RTS lines (on the DATA INTERFACE), before actu-ally keying the radio.PWR [20–37]NOTE: This function may not be available, depending on certificationrequirements in a particular country.ENTERENTERENTERENTER
28 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BThis command displays or sets the desired RF forward output power set-ting of the radio. The PWR command parameter is specified in dBm and can range from 20 through 37. The default setting is 37 dBm (5 watts). To read the actual (measured) power output of the radio, use the SHOW PWR command. A dBm-to-watts conversion chart is provided in Section 7.5 (page 40).RSSIThis command continuously displays the radio’s Received Signal Strength Indication (RSSI) in dBm units, until you press the Enter key. Incoming signal strengths from –50 dBm to –120 dBm can be read.RTU [ON/OFF/0-80]This command re-enables or disables the radio’s internal RTU simu-lator, which runs with MDS’ proprietary polling programs (poll.exe and rsim.exe). The internal RTU simulator is available whenever a radio has diagnostics enabled. This command also sets the RTU address that the radio will respond to.The internal RTU can be used for testing system payload data or pseudo bit error rate testing. It can be helpful in isolating a problem to either the external RTU or the radio.RX [xxx.xxxx]This command selects or displays the radio’s receive frequency in MHz. The frequency step size is 6.25 kHz.If the customer frequency has not been programmed at the factory, a default frequency will be programmed in the radio near the center of the frequency band.NOTE: A large change in receive frequency (more than 5 MHz)requires adjustment of the receiver helical filters for maximumperformance and RSSI. See Section 7.2, Helical Filter Adjust-ment (page 36) for details.RXTOT [NONE, 1-255]The RXTOT command selects or displays the receive time-out timer value in minutes. This timer triggers an alarm (event 12) if data is not detected within the specified time.Entering the RXTOT command without a parameter displays the timer value in minutes. Entering the RXTOT command with a parameter ranging from 0 to 255 resets the timer in minutes. Entering the RXTOT command with the parameter NONE disables the timer.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 29SCD [0-255]This command displays or changes the soft-carrier dekey delay in milli-seconds.This timer specifies how long to wait after the removal of the keying signal before actually releasing the transmitter. A value of 0 millisec-onds will unkey the transmitter immediately after the removal of the keying signal.SERThis command displays the radio’s serial number as recorded at the fac-tory.SHOW [DC, PORT, PWR]The SHOW command displays different types of information based on the command variables. The different parameters are:•DC—Display DC input/output voltages•PORT—Display the connector port (RJ-11 or DB-25) that is active for diagnostics and control.•PWR—Display RF power outputSNRThis command continuously displays the signal-to-noise ratio of the received signal expressed in dB, until you press the Enter key. As used in this guide, the signal-to-noise measurement is based upon the signal level following equalization, for received frames.The SNR is an indication of the received signal quality. The SNR indi-cation ranges from 10 dB to 33 dB. A value of 10 dB represents a very poor signal. A value of 24 dB represents a very good signal.When the SNR command is used, it causes the DIAG. port to enter an update mode, and the signal-to-noise ratio is updated and redisplayed every 2 seconds. The SNR continuously updates until the key is pressed.SREVThis command displays the software revision level of the transceiver firmware.STATThis command displays the current alarm status of the transceiver.If no alarms exist, the message NO ALARMS PRESENT appears at the top of the HHT display.ENTER
30 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BIf an alarm does exist, a two-digit code (00–31) is displayed and the alarm is identified as “Major” or “Minor.” A brief description of the alarm code is also given.If more than one alarm exists, the word MORE appears at the bottom of the screen and additional alarms are viewed by pressing the key. Detailed descriptions of event codes are provided in Table 9 on page 32.TEMPThis command displays the internal temperature of the transceiver in degrees Celsius.TOT [1-255, ON, OFF]This command sets or displays the transmitter Time-out Timer value (1–255 seconds), as well as the timer status (ON or OFF). If the timer is on, and the radio remains keyed for a longer duration than the TOT value, the transmitter is automatically unkeyed.When this happens, the radio must be commanded back to an unkeyed state before a new keying command is accepted. The default timer value is 30 seconds.TX [xxx.xxxx]This command selects or displays the radio’s transmit frequency in MHz. The frequency step size is 6.25 kHz.If the customer frequency has not been programmed at the factory, a default frequency will be programmed in the radio near the center of the frequency band.UNIT [10000...65000]The unit address is factory programmed to the last five digits of the serial number. 6.0 TROUBLESHOOTINGSuccessful troubleshooting of the radio system is not difficult, but it requires a logical approach. It is best to begin troubleshooting at the master station, as the rest of the system depends on the master for polling commands. If the master station has problems, the operation of the entire network can be compromised.It is good practice to start by checking the simple things. For proper operation, all radios in the network must meet these basic requirements:•Adequate and stable primary power. The radio contains an inter-nal self-resetting fuse (4A). Remove primary power to reset.ENTER
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 31•Secure connections (RF, data and power)•An efficient and properly aligned antenna system with a good received signal strength of at least –90 dBm. (It is possible for a system to operate with weaker signals, but reliability will be degraded.) •Proper programming of the transceiver’s operating parameters (see Section 5.0, TRANSCEIVER PROGRAMMING on page 17).•The correct interface between the transceiver and the connected data equipment (correct cable wiring, proper data format, timing, etc.)6.1 LED IndicatorsThe LED status indicators are an important troubleshooting tool and should be checked whenever a problem is suspected. Table 5 on page 16 describes the function of each status LED.6.2 Event CodesWhen an alarm condition exists, the transceiver creates a code that can be read on an HHT connected to the DIAG. port. These codes can be very helpful in resolving many system difficulties. Refer to Table 9 (page 32) for a definition of the event codes.Checking for Alarms—STAT commandTo check for alarms, enter STAT on the HHT. If no alarms exist, the mes-sage NO ALARMS PRESENT appears at the top of the display (Figure 12).Invisible place holderFigure 12. HHT Display in Response to STAT CommandIf an alarm does exist, a two-digit alarm code (00–31) is displayed and the event is identified as a Major or Minor Alarm. A brief description of the alarm is also given.If more than one alarm exists, the word MORE appears at the bottom of the screen. To view additional alarms, press .ENTER
32 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BMajor Alarms vs. Minor AlarmsMajor Alarms—report serious conditions that generally indicate a hard-ware failure, or other abnormal condition that will prevent (or seriously hamper) further operation of the transceiver. Major alarms generally indicate the need for factory repair. Contact MDS for further assistance.Minor Alarms—report conditions that, under most circumstances will not prevent transceiver operation. This includes out-of-tolerance condi-tions, baud rate mismatches, etc. The cause of these alarms should be investigated and corrected to prevent system failure.Event Code DefinitionsTable 9 contains a listing of all event codes that may be reported by the transceiver.Table 9. Event Codes Event Code Event Class Description01 Major Improper software detected for this radio model.02 Major The model number of the transceiver is unprogrammed.04 Major One or both of the internal programmable synthesizer loops is reporting an out-of-lock condition.06 Major An unrecoverable fault was detected on the auto-D chip. The radio will not receive data.07 Major One or more of the radio’s internal voltage regulators is reporting a failure. The radio will not operate.08 Major The system is reporting that it has not been calibrated. Factory calibration is required for proper radio operation.09 -- Not used.10 Major The internal microcontroller was unable to properly program the system to the appropriate EEPROM defaults. A hardware problem may exist.11 -- Not used.12 Major Receiver time-out. No data received within the specified receiver time-out time.13–15 -- Not used.16 Minor Not used.17 Minor A data parity fault has been detected on the DATA INTERFACE connector. This usually indicates a parity setting mismatch between the radio and the RTU.18 Minor A data framing error has been detected on the DATA INTERFACE connector. This may indicate a baud rate mismatch between the radio and the RTU.19–24 -- Not used.25 Minor The 5.6 volt power regulator is out-of-tolerance. If the error is excessive, operation may fail.
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 337.0 TECHNICAL REFERENCE7.1 MDS 4710/9710 Transceiver SpecificationsTRANSMITTER SYSTEM SPECIFICATIONOperating Frequency: See Transmitter SpecificationsFrequency Stability: ±1.5 ppmCarrier Power Accuracy: ±1.5 dB (normal1) ±2 dB to –3 dB (extreme2)Adjacent Channel Power: MDS x710A: –60 dBcMDS x710C: -40 dBcSpurious Emissions: –36 dBm, 9 kHz to 1 GHz–30 dBm, 1 GHz to 12 GHzIntermodulation: 40 dBcTransmitter Attack Time: 5 ms maximumTransmitter Release Time: 5 ms maximumTransient Power Adjacent Channel: MDS x710A: –50 dBcMDS x710C: –40 dBcRECEIVER SYSTEM SPECIFICATIONOperating Frequency: See Receiver SpecificationsMaximum Usable Sensitivity: MDS x710A: –113 dBm at 10–2 BER (normal1)–107 dBm at 10–2 BER (extreme2)MDS x710C: –108 dBm at 10–2 BER (normal1)–102 dBm at 10–2 BER (extreme2)Co Channel Rejection: –18 dBAdjacent Channel Selectivity: 60 dB (normal1)50 dB (extreme2)Spurious Response Rejection: 70 dBIntermodulation: 65 dBBlocking: 84 dBSpurious Radiation: –57 dBm (9 kHz to 1 GHz)–47 dBm (1 GHz to 12.75 GHz)DATA CHARACTERISTICSSignaling Type: RS-232; DB-25 Female connectorData Interface Rates: 110–38400 bps—asynchronousData Latency: 10 ms maximumByte Length: 10 bits26 Minor The DC input voltage is out-of-tolerance. If the voltage is too far out of tolerance, operation may fail.27, 28 -- Not used31 Minor The transceiver’s internal temperature is approaching an out-of-tolerance condition. If the temperature drifts outside of the recommended operating range, system operation may fail.Table 9. Event Codes (Continued)Event Code Event Class Description
34 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BTRANSMITTERFrequency Range 4710* 9710**One of these bands: 380–400 MHz 800–880 MHz400–450 MHz 880–960 MHz450–512 MHz406–530 MHz*Refer to Figure 4 on page 4 to determine which band the radio operates on.**Refer to Figure 5 on page 4 to determine which band the radio operates on.Modulation Type: Binary CPFSKCarrier Power: 0.1 watts to 5 wattsDuty Cycle: ContinuousOutput Impedance: 50 ohmsFrequency Stability: ±1.5 ppmChannel Spacing: MDS x710A: 12.5 kHzMDS x710C: 25 kHzAdjacent Channel Power: MDS x710A: –60 dBcMDS x710C: –40 dBcTransmitter SpuriousConducted EmissionsOperational: –36 dBm [73 dBc], 9 kHz to 1 GHz–30 dBm [67 dBc], 1 GHz to 12.5 GHzStandby: –57 dBm, 9 kHz to 1 GHz–47 dBm, 1 GHz to 12.5 GHzTransmitter SpuriousRadiated Emissions: –36 dBm [73 dBc], 9 kHz to 1 GHz–30 dBm [67 dBc], 1 GHz to 12.5 GHzHarmonics:2nd harmonic: –73 dBc3rd harmonic & higher: –67 dBcPower: 50 dBcTime-out Timer: 30 seconds, default (selectable with TOT)Transmitter Keying: Data activated or RTSRECEIVERFrequency Range 4710* 9710**One of these bands: 380–400 MHz 800–860 MHz400–420 MHz 860–900 MHz420–450 MHz 900–960 MHz450–480 MHz480–512 MHz406–430 MHz*Refer to Figure 4 on page 4 to determine which band the radio operates on.**Refer to Figure 5 on page 4 to determine which band the radio operates on.Type: Double conversion superheterodyneFrequency Stability: 1.5 kHzMaximum Usable Sensitivity: MDS x710A: –113 dBm BER at 10–2 (normal1)–107dBm BER at 10–2 (extreme2)MDS x710C: –108 dBm BER at 10–2 (normal1)–102dBm BER at 10–2 (extreme2)Co-channel Rejection: MDS x710A: –12 dBMDS x710C: –18 dBAdjacent Channel Rejection: 60 dB (normal1)50 dB (extreme2)
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 35Spurious Response Rejection: 70 dBIntermodulation Response Rejection: 65 dBReceiver SpuriousConducted Emissions: –57 dBm, 9 kHz to 1 GHz–47 dBm, 1 GHz to 12.5 GHzReceiver SpuriousRadiated Emissions: –57 dBm, 30 MHz to 1 GHz–47 dBm, 1 GHz to 12.5 GHzBandwidth: MDS x710A: 12.5 kHzMDS x710C: 25 kHzPRIMARY POWERVoltage: 13.8 Vdc Nominal (10.5 to 16 Vdc)TX Supply Current: 2.5 amps RX Supply Current: Operational—150 mAStandby (sleep)—25 mAPower Connector: 2-pin polarized locking connectorFuse: 4 Amp Polyfuse, Self-Resetting, Internal (Remove Primary Power to Reset)Reverse Polarity Protection: Diode across primary inputENVIRONMENTALHumidity: 95% at 40 degrees CTemperature Range: –30 to 60 degrees C (full performance)–40 to 70 degrees C (operational)Weight: 1.6 kilogramsCase: Die-cast AluminumDIAGNOSTICS INTERFACESignalling Standard: RS-232 Connector: RJ-11 (may use DB-25 instead if Pin 23 is grounded to enable diagnostics channel)I/O Devices: MDS Hand Held Terminal or PC with MDS software1. Normal refers to: Temperature, +15 to +35 degrees CHumidity, 20% to 75%Voltages, Nominal Specified2. Extreme refers to: Temperature, –25 to +55 degrees CHumidity, 20% to 75%Voltages, ±10%
36 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B7.2 Helical Filter AdjustmentIf the frequency of the radio is changed more than 5 MHz, the helical filters should be adjusted for maximum received signal strength (RSSI). To adjust the filters, proceed as follows:1. Remove the top cover from the transceiver by loosening the four screws and lifting straight up.2. Locate the helical filters on the PC board. See Figure 13.3. Apply a steady signal to the radio at the programmed receive fre-quency (–80 dBm level recommended; no stronger than –60 dBm). This can be done with a signal generator or an over-the-air signal.4. Measure the radio’s RSSI using one of the following methods:•With an HHT (See Section 5.0, TRANSCEIVER PROGRAM-MING on page 17).•With MDS Radio Configuration Software (See Section 7.4, Upgrading the Radio’s Software on page 38).•With a voltmeter connected to Pin 21 of the DATA INTERFACE connector (See Section 4.2, RSSI Measurement on page 16).5. With a non-metallic adjustment tool, adjust each section of the helical filters for maximum RSSI. Re-install the cover to the trans-ceiver.Invisible place holderFigure 13. Helical Filter LocationsFRONT PANELOF RADIOJ301U104U101U202HELICALADJUSTMENTSU203SHIELDCOVER
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 377.3 Performing Network-Wide Remote DiagnosticsDiagnostics data from a remote radio can be obtained by connecting a laptop or personal computer running MDS InSite diagnostics software to any radio in the network. Figure 14 shows an example of a setup for performing network-wide remote diagnostics.Invisible place holderFigure 14. Network-Wide Remote Diagnostics SetupIf a PC is connected to any radio in the network, intrusive polling (polling which briefly interrupts payload data transmission) can be per-formed. To perform diagnostics without interrupting payload data trans-mission, connect the PC to a radio defined as the “root” radio. A radio is defined as a root radio using the DTYPE ROOT command locally, at the radio.A complete explanation of remote diagnostics can be found in MDS’ Network-Wide Diagnostics System Handbook. See the Handbook for more information about the basic diagnostic procedures outlined below.1. Program one radio in the network as the root radio by entering the DTYPE ROOT command at the radio.RTUDIAGNOSTICS DATA(TO InSite)HOST COMPUTERRTU TODIAGNOSTICSPORTTO DATAPORTMASTER STATIONROOTDTYPEROOTPAYLOAD DATA(TO SCADA APPLICATION)RTUDTYPENODEDTYPENODEDTYPENODE
38 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B2. At the root radio, use the DLINK ON and DLINK [baud rate] commands to configure the diagnostic link protocol on the RJ-11 port.3. Program all other radios in the network as nodes by entering the DTYPE NODE command at each radio.4. Use the DLINK ON and DLINK [baud rate] commands to configure the diagnostic link protocol on the RJ-11 port of each node radio.5. Connect same-site radios using a null-modem cable at the radios’ diagnostic ports.6. Connect a PC on which MDS InSite software is installed to the root radio, or to one of the nodes, at the radio’s diagnostic port. (This PC may be the PC being used to collect payload data, as shown in Figure 14.)To connect a PC to the radio’s DIAG. port, an RJ-11 to DB-9 adapter (MDS P/N 03-3246A01) is required. If desired, an adapter cable may be constructed from scratch using the information shown in Figure 15.Invisible place holderFigure 15. RJ-11 to DB-9 Adapter Cable7. Launch the MDS InSite application at the PC. (See the MDS InSite User’s Guide for instructions.)7.4 Upgrading the Radio’s SoftwareWindows-based Radio Configuration software is available (MDS P/N 03-3156A01) for upgrading the internal radio software when new fea-tures become available from Microwave Data Systems. Contact MDS for ordering information.To connect a PC to the radio’s DIAG. port, an RJ-11 to DB-9 adapter (MDS P/N 03-3246A01) is required. If desired, an adapter cable may be constructed from scratch using the information shown in Figure 15.Using the Radio Configuration software, select RADIO SOFTWARE UPGRADE under the SYSTEM menu. Follow the prompts and online instructions to determine how to proceed.RXDTXDGND235DB-9 FEMALE(TO COMPUTER)TXDRXDGND456RJ-11 PLUG(TO RADIO)RJ-11 PIN LAYOUT16
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 39Software upgrades are distributed as ASCII files with a “.S28” exten-sion. These files use the Motorola S-record format. When the download is activated, the radio’s PWR LED will flash rapidly, confirming that a download is in process. The download takes about two minutes.NOTE: If a download fails, the radio is left unprogrammed and inop-erative. This is indicated by the PWR LED flashing slowly (1second on/1 second off). This condition is only likely if therewere to be a power failure to the computer or radio during thedownloading process. The download can be attempted againwhen the fault has been corrected.
40 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B7.5 dBm-Watts-Volts Conversion ChartTable 10 is provided as a convenience for determining the equivalent wattage or voltage of an RF power expressed in dBm.Table 10. 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 05-3305A01, Rev. B MDS 4710/9710 I/O Guide 41NOTES
42 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide I-1INDEXAACCESS DENIED error message 20Accessories 4Accessory Power pinout (Pin 18) 15Active messaging (defined) 6Alarmsalarm code definitions 32major vs. minor 32pinout (Pin 25) 15using STAT command to display 29AMASK command 22Antennainstallation 9RSSI command used to refine heading 15system gain, defined 6Yagi, illustrated 12Antennas 11–12Applications 2Multiple Address Systems (MAS) 2point-to-multipoint system 2point-to-point system 3ASENSE command 23BBAUD command 23Baud ratesetting for RJ-11 DIAG port (DLINK command) 25, 38Bit, defined 6Bits-per-second. See BPS 6BPS (bits-per-second), defined 6BUFF command 24Byte, defined 6CCable, loss due to length of coaxial at 400 MHz 12Cable, loss due to length of coaxial at 960 MHz 12Cautionsuse attenuation between all units in test setup 37CKEY command 24COMMAND FAILED error message 20Command summary, table 20CommandsAMASK (set/display alarm triggers) 22ASENSE (set alarm output state) 23BAUD (set/display rate, encoding) 23BUFF (set/display data handling mode) 24CKEY (enable/disable continuous keying) 24CTS (set/display CTS line response timer) 24DATAKEY (enable/disable transmitter keying by radio) 24descriptions 22–30DEVICE (set/display radio behavior) 25DKEY (deactivate transmitter after KEY command) 25DLINK (enable/disable network-wide diagnostics) 25DMGAP (set time to wait between characters) 25DTYPE (set radio to root or node for diagnostics) 26DUMP (display all programmed settings) 26entering on Hand-Held Terminal (HHT) 19Hand-Held Terminal (HHT) 19HREV (display hardware revision level) 26INIT (reinitialize radio to factory defaults) 26INIT xx10 (restore standard transceiver defaults) 26INIT xx20 (configure radio for use with P-20 chassis) 27KEY (activate transmitter) 27MODEL (display radio model number code) 27MODEM (set modem speed) 27OWM (set/display owner’s message) 27OWN (set/display owner’s name) 27PTT (set/display key-up delay) 27PWR (set/display RF forward output power) 27RSSI (display RSSI) 28RTU (enable/disable internal RTU) 28RX (set/display receive frequency) 28RXTOT (set/display receive time-out timer value) 28SCD (set/display soft-carrier dekey delay) 29SER (display radio serial number 29SHOW (display DC voltage, data port, RF power) 29SNR (display signal-to-noise ratio) 29SREV (display software revision level) 29STAT (display current alarm status) 29TEMP (display internal temperature) 30TOT (set/display time-out value and timer status) 30TX (set/display transmit frequency) 30Conversions, dBm-Watts-Volts 40CTS command 24CTS pinout (Pin 5) 14DData interfaceconnector pinouts 14display active connector port 29installing connection 13DATAKEY command 24dB. See Decibel 6dBi, defined 6dBm, defined 6DCDLED 16pinout (Pin 8) 14DCE (Data Cirtuit-terminating Equipment), defined 6
I-2 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. BDecibel (dB), defined 6Description, product 1DEVICE command 25Diagnostic Channel Enable, pinout (Pin 23) 15Diagnosticsinterface specifications 35network-wide, performing 37PC software used for 38using InSite software for network-wide 37Displayalarm status (STAT command) 29alarm triggers (AMASK command) 22all programmed settings (DUMP command) 26baud rate and encoding (BAUD command) 23connector port, active (SHOW command) 29CTS line response timer (CTS command) 24data handling mode (BUFF command) 24DC voltage (SHOW command) 29hardware revision leve (HREV command)l 26key-up delay (PTT command) 27model number code (MODEL command) 27owner’s message (OWM command) 27owner’s name (OWN command) 27radio behavior (DEVICE command) 25radio serial number (SER command) 29receive frequency (RX command) 28receive time-out timer value (RXTOT command) 28RF forward output power (PWR command) 27RF output (SHOW command) 29RSSI (RSSI command) 28signal-to-noise ratio (SNR command) 29soft-carrier dekey delay (SCD command) 29software revision level (SREV command) 29temperature, internal (TEMP command) 30time-out value and timer status (TOT command) 30transmit frequency (TX command) 30DKEY command 25DLINK command 25use of 38DMGAP command 25Downloading new software 38DSP (Digital Signal Processing), defined 7DSR pinout (Pin 6) 14DTE (Data Terminal Equipment), defined 7DTYPE command 26use of 37DUMP command 26EEEPROM FAILURE error message 20Enable/disablecontinuous keying (CKEY command) 24diagnostic channel, pinout (Pin 23) 15internal RTU (RTU command) 28network-wide diagnostics (DLINK command) 25network-wide diagnostics, procedures 38Environment specifications 35Equalization, defined 7Error messages 19access denied 20command failed 20EEPROM failure 20incorrect entry 19not available 20not programmed 20text too long 20unknown command 19FFade margin, defined 7Feedlines 12Filter, helical, adjustment 36Frame, defined 7Frequencyadjusting helical filter when changed 36setting. See TX and RX commandsGGlossary 6Groundon Pin 12 to enable Sleep mode 14protective (Pin 1) 14signal (Pin 7) 14HHalf-duplex 3switched carrier operation 3Hand-Held Terminal (HHT) 5connected to transceiver, illustrated 18connection and startup 17display in response to STAT command, illustrated 31entering commands 19error messages displayed on 19keyboard commands 19operational settings, table 19reinitialization display, illustrated 18reinitializing 18Hardware flow control, defined 7Helical filteradjusting 36illustration 36Host computer, defined 7HREV command 26IIllustrations4710A model number codes 49710A model number codes 4antenna, Yagi 12Hand-Held Terminal (HHT) connected to transceiver 18Hand-Held Terminal (HHT) reinitialization display 18Hand-Held Terminal display in response to STAT command 31
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide I-3helical filter locations 36MAS network 2network-wide diagnostics 37point-to-point link 3remote station arrangement 9RJ-11 to DB-9 adapter cable 38RSSI vs. Vdc 13, 16transceiver connectors & indicators 1transceiver mounting dimensions 11INCORRECT ENTRY error message 19INIT command 26INIT xx10 command 26INIT xx20 command 27InSite softwareusing to perform remote diagnostics 37Installation 9–15antenna 9configuring transceiver 10DATA INTERFACE connection 9data interface connections 13power 10power connection 13steps 9Intrusive diagnostics (defined) 7KKEY command 27Keyingcontinuously keyed versus switched carrier operation 3continuously keyed, defined 3on data (DKEY command) 25switched carrier, defined 3LLatency, defined 7LEDsDCD 16indicators, described 16PWR 16RXD 16RXD, Pin 3 14status indicators, illustrated 16TXD 16TXD, Pin 2 14Loss. See SignalMMAS (Multiple Address System) 2defined 7illustration 2Master Stationdefined 7keying behavior 3MCU (Microcontroller Unit), defined 7MODEL command 27Model number codes 34710A, illustrated 49710A, illustrated 4displaying (MODEL command) 27MODEM command 27Modem, set speed. See MODEM commandNNetwork-wide diagnosticsactive messaging, defined 6defined 8enable/disable (DLINK command) 25enable/disable internal RTU (RTU command) 28illustrated 37intrusive diagnostics, defined 7passive messaging (defined) 8procedures 37set radio to root or node (DTYPE command) 26set time to wait between characters (DMGAP command) 25NOT AVAILABLE error message 20NOT PROGRAMMED error message 20OOperation 15–16environment specifications for 35Output, 9.9 Vdc regulated, pinout (Pin 19) 15OWM command 27OWN command 27Owner’s message, set/display. See OWM commandOwner’s name, set/display. See OWN commandPPassive messaging (defined) 8Payload data (defined) 8Pinouts on data interface 14PLC (Programmable Logic Controller), defined 8Point-to-multipointdefined 8system 2Point-to-pointlink, illustrated 3system 3Poll, defined 8Powerconnection 13display DC voltage (SHOW command) 29display RF output (SHOW command) 29installing 10LED status indicator (PWR LED) 16RF, chart for converting dBm-Watts-Volts 40specifications 35Procedureschecking for alarms (STAT command) 31connecting Hand-Held Terminal (HHT) 17downloading new software 38entering commands using the Hand-Held Terminal (HHT) 19helical filter adjustment 36
I-4 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. Binstallation 9measuring RSSI with DC voltmeter 16network-wide diagnostics 37operation 15, 16performance optimization 15reading LED status indicators 16resetting Hand-Held Terminal (HHT) 18troubleshooting 30–33Productaccessories 4description 1display model number code (MODEL command) 27display radio serial number (SER command) 29model number codes 3Programming radio as root or node 37Programming, transceiver 17–30PTTcommand 27pinout (Pins 14, 16) 14PWRcommand 27LED 16RRadioConfiguration Software 5, 38Inhibit pinout (Pin 12) 14serial number, displaying (SER command) 29Receive Audio Output pinout (Pin 11) 14Receiverspecifications 34system specifications 33unsquelched signal (Pin 10) 14Redundant operation, defined 8RemoteRTU reset (Pin 15) 15Station, defined 8Station, illustrated 9ResettingHand-Held Terminal (HHT) (SHIFT,CTRL,SPACE keys) 18remote RTU reset (Pin 15) 15transceiver (INIT command) 26Revision leveldisplay hardware (HREV command) 26display software (SREV command) 29RSSIadjusting helical filter for increased signal strength 36command 28command, used to refine antenna heading 15measuring 16pinout (Pin 21) 15vs. Vdc, illustrated 13, 16RTS pinout (Pin 4) 14RTUcommand 28RTU (Remote Terminal Unit)defined 8remote reset (Pin 15) 15RUS pinout (Pin10) 14RX command 28RXD LEDdescription 16Pin 3 14RXTOT command 28SSCADA (Supervisory Control And Data Acquisition), defined 8SCD command 29SER command 29Setalarm output state (ASENSE command) 23alarm triggers (AMASK command) 22receive time-out timer value (RXTOT command) 28SHOW command 29Signalground (Pin 7) 14loss due to coaxial cable length at 960 MHz, table 12loss due to coaxial cable length, table 12Simplex 3single-frequency operation 3special case of switched carrier operation 3Sleep modeexample implementation 13ground on Radio Inhibit pin activates 14Pin 12 14shown by PWR LED status indicator 16SNR command 29Softwarediagnostics and control used from PC 38display revision level 29upgrades (.S28 files) 39upgrading 38used for diagnostics and programming 17Specificationsdiagnostics interface 35environment 35power 35receiver 34receiver system 33transceiver 33–35transmitter 34transmitter system 33SREV command 29STAT command 29SWR (Standing Wave Radio), defined 8TTablesaccessories 5alarm code definitions 32command summary 20conversions, dBm-Watts-Volts 40data interface connector pinouts 14Hand-Held Terminal (HHT) operational settings 19LED status indicators 16length vs. loss in coaxial cables 12
MDS 05-3305A01, Rev. B MDS 4710/9710 I/O Guide I-5length vs. loss in coaxial cables at 960 MHz 12Technical reference 33–40TEMP command 30Temperature, displaying internal (TEMP command) 30TEXT TOO LONG error message 20Timer, set/display time-out value and status (TOT command) 30TOT command 30Transceiverapplications 2configuring for operation 10connectors and indicators, illustrated 1diagnostics using PC software 38dimensions, mounting 11mounting 9, 11programming 17–30specifications 33–35upgrading software 38Transmit Audio Input pinout (Pin 9) 14Transmitterspecifications 34system specifications 33Troubleshooting 30–33connecting Hand-Held Terminal (HHT) for displaying alarm codes 17performing network-wide diagnostics 37STAT command (Status) 31using PC software for 38TX command 30TXD LEDdescription 16Pin 2 14UUNKNOWN COMMAND error message 19
I-6 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. B
IN CASE OF DIFFICULTY...Our 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 ASSISTANCETechnical assistance for our 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 experiencing. 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 (716) 242-9600FAX: +1 (716) 242-9620Web: www.microwavedata.com

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