MDS MDS 4710 Series Specifiche Pagina 1

Installation & Operation Guide MDS 05-3438A01, Rev. EAUGUST 2005 400 MHz/900 MHzMultiple Address SystemMaster Station Radio MDS 4790/9790 Series

2 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E All assemblies, including the duplexer and power supply, are contained in the radio’s compac

92 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ESoftware disks are also available from MDS that include a loader pro-gram for downloading the

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 9310.0 TECHNICAL REFERENCE10.1 Technical SpecificationsThe following specifications apply to al

94 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ETRANSMITTER Frequency Stability:±1.5 ppmCarrier Power Accuracy:±1.5 dBAdjacent Channel Power:

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 9510.2 RF Propagation PlanningEstablishing a reliable point-to-point radio link requires system

96 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ENOTE: This section is intended for use as a guideline when planningtransmission paths. It doe

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 97Earth CurvatureAs the distance of a communication link increases, the clearance problem is co

98 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ECalculating Path LossAssuming that we have satisfied the line-of-sight and first Fresnel zone

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 99Probability of System Fadingwhere:FProb = probability of fading more than Fa = terrain factor

100 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E10.4 dBm-Volts-Watts Conversion ChartTable 20 is provided as a convenience for determining t

MDS 05-3438A01, Rev. E MDS 4790A/9790A Installation and Operation Guide G-1GLOSSARYActive Messaging—This is a mode of diag-nostic gathering that may

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 3 a transceiver board will cause the boards to communicate briefly with each other to establis

G-2 MDS 4790A/9790A Installation and Operation Guide MDS 05-3438A01, Rev. Ekbps—Kilobits-per-second.Menu Directory—Front panel display screen that is

MDS 05-3438A01, Rev. E MDS 4790/9790 Series Installation and Operation Guide I-1AAccess Level screen 64Accessories 5ACTIVE LED 27Active Radio Status

I-2 MDS 4790/9790 Series Installation and Operation Guide MDS 05-3438A01, Rev. EOPT! (list installed radio options) 46OWM command (set/display text me

MDS 05-3438A01, Rev. E MDS 4790/9790 Series Installation and Operation Guide I-3RF forward output power (PWR command) 47RX timeout (RX Timeout screen

I-4 MDS 4790/9790 Series Installation and Operation Guide MDS 05-3438A01, Rev. EFresnel zone 96front panel controls and indicators 26front panel remov

MDS 05-3438A01, Rev. E MDS 4790/9790 Series Installation and Operation Guide I-5Mounting the radio 11dimensions and bracket details, illustrated 12ra

I-6 MDS 4790/9790 Series Installation and Operation Guide MDS 05-3438A01, Rev. ERepeater operation 3illustrated 4set/display (Repeater Mode screen) 67

MDS 05-3438A01, Rev. E MDS 4790/9790 Series Installation and Operation Guide I-7start of new message timer (DMGAP command) 42time (Set Time screen) 7

I-8 MDS 4790/9790 Series Installation and Operation Guide MDS 05-3438A01, Rev. EENTERESCAPEACTIVEACTIVESTBYALARMRX ALRTX ALRSTBYALARMRX ALRTX ALRLINEL

IN CASE OF DIFFICULTY...MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment,

4 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E Figure 3. Typical Repeater and Polling-Remote Network Simplex and Switched Carrier Operation

Microwave Data Systems Inc.Rochester, NY 14620General Business: +1 585 242-9600FAX: +1 585 242-9620Web: www.microwavedata.com175 Science ParkwayA prod

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 5 • Primary power options for: 15, 24, 48, or 125 Volt DC and 115/230 Volts AC sources.• Confi

6 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E 2.6 Model Number Codes The radio model number is printed on the serial number label, which i

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 7 Site Selection For a successful installation, careful thought must be given to selecting the

8 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E The test can be performed by installing a radio at each end of the pro-posed link and checki

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 9 Generally speaking, an omni-directional antenna (Figure 5) is used at the master station sit

10 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E The RG-8A/U cable is a widely available and inexpensive feedline that is suitable for syste

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 11Invisible place holderFigure 6. Typical Shipment Contents 4.2 Mounting the RadioThe radio sh

QUICK START GUIDE 1. Install and connect the antenna system to the radio (page 8). • Use an appropriate antenna aimed at the associated station.• Use

12 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EInvisible place holderFigure 7. Mounting DimensionsRemote Front Panel Mounting—Optional Confi

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 13Invisible place holderInvisible place holderFigure 8. Front Panel Removal5. Snap the front pa

14 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EAC-Powered UnitsAC-powered radios are designed to operate from 115 to 230 Vac (50-60 Hz). The

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 154.4 Backup BatteryA single backup battery is normally installed in AC-powered master sta-tion

16 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ELow-Voltage Disconnect FeatureThe Battery Control Board contains a Low-Voltage Disconnect cir

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 17Regardless of the antenna make, mount the antenna in the clear, as far away as possible from

18 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EInvisible place holderFigure 13. Master Station Rear PanelTX, Antenna and RX Coaxial Connecto

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 19Invisible place holderFigure 15. Antenna Connection with External DuplexerApplication #3—Exte

20 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EInvisible place holderFigure 17. Coaxial Connectors for Older Radios (For units intended to o

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 21Diagnostics Connector—J1A DB-9 (9-pin) connector on the rear panel provides system diagnostic

MDS 05-3438A01, Rev. E MDS 4790/9790 Series™ I/O Guide i TABLE OF CONTENTS 1.0 INTRODUCTION...

22 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EData Interface Connector—J3The data connector on the radio’s rear panel is the main system da

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 23Orderwire Connector—J9The radio provides for an orderwire channel to facilitate communica-tio

24 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E4.7 Post Installation ChecksBefore applying power to the radio, verify that:1. All connection

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 25Coordinating Activities by OrderwireThe orderwire channel can be very useful in coordinating

26 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EInvisible place holderFigure 23. Front Panel Controls and IndicatorsLED IndicatorsThe basic o

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 27NOTE: Additional LEDs are located behind the removable front panel.They are intended primaril

28 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E6.0 DIAGNOSTICS AND CONTROLConfiguration, control and diagnostics of the master station is pe

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 292. Connect a DB-9 to DB-9 cable (Figure 27) between the PC and the radio’s rear panel DIAGNOS

30 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EThe system displays one or more lines in confirmation. These responses are listed in Tables 6

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 31See Section 6.3, Detailed Command Descriptions, beginning on Page 35 for detailed information

ii MDS 4790/9790 Series™ I/O Guide MDS 05-3438A01, Rev. EOrderwire Connector—J9 ...23Alar

32 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ETable 6. PC Commands—Radio Operation TERMINALCOMMAND FRONT PANEL MENUDESCRIPTION BATT(ery) [

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 33RX [xxx]Details, page 49Receive FrequencyDetails, page 65Set or display receive frequencyRXLE

34 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EKEYDetails, page 44Manual KeyDetails, page 68Enable the transmitterDKEYDetails, page 41Manual

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 356.3 Detailed Command DescriptionsThis section gives more detailed information for most of the

36 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EEach bit of the hexadecimal response code represents a unique alarm event. The first 4-digit

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 37Major Alarm Event AssignmentsAMASK [0000 0000–FFFF FFFF]Table 9 and Table 10 listed the major

38 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EAlarm Sense ASENSE [HI/LO]The ASENSE command displays or sets the logic characteristics of th

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 39a = Data bits (7 or 8)b = Parity (N for None, O for Odd, E for Even)c = Stop bits (1 or 2)The

40 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EContinuous Transmitter KeyingCKEY [ON/OFF]The CKEY command enables or disables continuous key

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 41Note that key-on-data mode is only applicable when the input data source is digital. When the

MDS 05-3438A01, Rev. E MDS 4790/9790 Series™ I/O Guide iiiRTU [ON/OFF/0-80]...48

42 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E• 4800• 9600• 19200 (default setting)Example: DLINK 4800 sets the RJ-11 DIAG port to operate

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 43ON indicates that pre-emphasis and de-emphasis are enabled, and OFF indicates that pre-emphas

44 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EKey Radio TransmitterKEYThis command activates the transmitter. See also the DKEY command.Ope

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 45Display Unit Model Number CodeMODELThis command displays the radio’s model number. The charac

46 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EEntering the NMASK command alone displays the current setting of minor alarm events in hexade

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 47Push-to-Talk Keying DelayPTT [0-255]This command sets or displays the amount of time to wait

48 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EExample: >RADIORadio response:RADIO ARADIO A IS ACTIVERADIO B IS INACTIVEEntering the RADI

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 49Receive Frequency RX [xxx]This command displays or changes the radio’s receive frequency. Nor

50 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EReceive Data AttenuatorRXPAD [ON/OFF]This command enables or disables the receive attenuator

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 51Show Selected ParametersSHOW [DC/PWR/CURRENT/RADIO]The SHOW command discloses different types

iv MDS 4790/9790 Series™ I/O Guide MDS 05-3438A01, Rev. EMDS 4790/970—Front End Helical Coil Alignment...878.5 Testing and Re

52 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ESoftware (firmware) Revision LevelSREVSREV displays the software release number, revision and

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 53• Press the Enter key to display the next alarm event• Enter QUIT, Q, or a period (.) to retu

54 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EClock Formatting TIME [hh:mm:ss]This command sets or displays the time in 24-hour format. The

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 55If the transmit frequency is changed more than 100 kHz from the factor’s setting, please revi

56 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E6.4 Configuration and Programming using the Front PanelIf a PC running MDS diagnostics softwa

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 57Invisible place holderFigure 28. Front Panel Screen FlowchartENTERENTERENTERTO CHANGE SETTING

58 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EProgramming and Control ButtonsThe programming and control buttons are located at the far rig

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 59Invisible place holderFigure 30. Menu Directory ScreenDisplaying the menu directoryTo display

60 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E• ESCAPE—Cancels the current radio functionality selection before the ENTER button is pressed

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 61The Diagnostic screens display important status information for the local and remote radio, a

MDS 05-3438A01, Rev. E MDS 4790/9790 Series™ I/O Guide v ISO 9001 Registration Microwave Data Systems adheres to this internationally-accepted qualit

62 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EModemDetails, page 65MODEM [NONE/4800/9600/19200/DEFAULT]Details, page 45Set or display inter

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 63Table 15. Front Panel Screens—Diagnostics FRONT PANEL SCREENTERMINALCOMMANDDESCRIPTION Activ

64 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EGROUP 1—MAIN SCREENSStart-up ScreenWhen the radio is first powered on, or after a period of ti

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 65NOTE: Changing the transmitter’s operating frequency may result in degraded orout-of-specific

66 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EBaud Rate/Format This screen is used to set or display the communication attributes for the D

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 67Soft-Carrier De-key DelayThis screen is used to set or display the Soft-Carrier Dekey Delay.

68 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ERX Mute Mode This screen is used to set or display the radio’s RX (receive) Muting status. RX

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 69Unit Address The radio’s unit address identifies itself as a unique radio within a network man

70 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ENote that key-on-data mode is only applicable when the input data source is digital. When the

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 71Receive Level [–20 to +3]This screen is used to set or display the radio’s audio receive leve

vi MDS 4790/9790 Series™ I/O Guide MDS 05-3438A01, Rev. E ESD Notice To prevent malfunction or damage to this radio, which may be caused by Electrost

72 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EBacklight Intensity This screen is used to set the brightness of the front panel display’s ba

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 73Set Time This screen is used to set or display the time set in the radio. The accuracy of the

74 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. ES/N Ratio This screen displays the current signal-to-noise ratio in dBm.Radio Selection This

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 75GROUP 4—EVENT LOGEvent LogThis screen shows the events logged on the active transceiver board

76 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E7.1 Local Problem-SolvingFront Panel LEDsThe first indication of a problem is usually an illu

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 77Chassis-Mounted LEDsOn current production radios, a series of additional LEDs are located beh

78 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EProblem Solving Using a Connected PCDetermination of radio status may be performed with a PC

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 79• Major alarms generally indicate a hardware failure or other abnormal condition that will pr

80 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EFigure 35. System Bench Test Set-up7.2 Performing Network-Wide Radio DiagnosticsRadios in a n

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 814. Use the DLINK ON and DLINK [baud rate] commands to enable net-work-wide diagnostics and se

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 1 1.0 INTRODUCTION This guide presents installation and operating instructions for the MDS 479

82 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EInvisible place holderFigure 37. RJ-11 to DB-9 Adapter Cable8.0 REPLACING ASSEMBLIESComponent

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 83Invisible place holderFigure 38. Main Transceiver and Power Supply Removal8.2 Installation &a

84 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E4. Locate the battery cable and connect it to the proper terminals on the battery. The red wi

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 85Invisible place holderFigure 40. Front Panel Removal/Replacement8.4 Operating Frequency Chang

86 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. EMDS 4790—400 MHz Notch-Type DuplexersThe radio’s transmit frequency can be changed up to 100

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 87MDS 4790/9790 Simplex Radios—With Antenna Switch Mod-ulesSimplex radios do not have a duplexe

88 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E3. Using an adapter, connect the RF power meter to the SMA connec-tor on the vertical interfa

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 89Use care when removing the duplexer. Physical damage may cause de-tuning.Figure 45. Internal

90 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E2. Open the radio chassis, locate the TX cable, and disconnect the cable from vertical interf

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 918.7 Cooling Fan Maintenance The MDS 4790/9790 Series uses cooling fans to cool the main trans