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Black Box MWU2000-V35 manual Error Messages Source, ⇒ To check the configuration of each unit

Models: MWU2000-G703 MWU2000-X21 MWU2000-V35

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2.048Mbps Wireless Modem

Table 4-1. Error Messages Source

Problem 8: One or more links function properly (are synchronised), but when adding another link, performance degrades.

Probable cause:

•Incorrect configuration of all units connected by the synchronization cable.

•Physical problems with the synchronization cable.

⇒To check the configuration of each unit:

1.In the Counters and Tracers menu select Watch Alarms and make sure no alarms regarding synchronization are present.

2.From the Parameters menu, select Parameters Info. Screen.

3.Verify that all units are configured as Master and each has a different Network I.D.

92	SALES: 0118 965 5100

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Black Box MWU2000-V35, MWU2000-G703, MWU2000-X21 manual Error Messages Source, ⇒ To check the configuration of each unit

Contents

0118 965 Basingstoke Road, Reading, Berkshire RG2 0QN048Mbps Wireless Modem Sales 0118 965048Mbps Wireless Modem Contents Set-up and Configuration Properly General Introduction About this Manual2.048Mbps Wireless Modem Product DescriptionError-Free Data Transfer Seamless CommunicationVersatility High Speed CommunicationChoice of Antennas, Cables and RF Accessories 048Mbps Wireless Modem Benefits048Mbps Wireless Modem Components Co-locationLine Interface Unit RS530Fractional E1 with Echo Cancellation Fractional T1 With Echo CancellationModem Separate DSP Transmit and Receive Modems Adaptive EqualizationRadio AntennasLine Front Panel IndicatorsGeneral TX Sync RXD and TXDRx Sync 048Mbps Wireless Modem Connectors 048Mbps Wireless Modem Connections E1 or Fractional E1 LIUPackage Components Installation Antennas and AccessoriesInstalling the 2.048Mbps Wireless Modem General To Configure the Unit as Master To Set the Clock Rate V.35/RS-530/X.21 onlyTo Configure Channels Fractional E1 To Configure Channels with Echo Cancellation- Fractional E1To Configure Channels with Echo Cancellation- Fractional T1 To Configure Channels- Fractional T1Antennas, Cables and Accessories Basic Antenna Uni-8.5Basic 8.5 dBi Antenna Showing Installation screws Medium Gain 12dBi Antenna Uni-12Medium Gain 12dBi Antenna Medium Gain 18dBi Antenna Uni-18Medium Gain 18dBi Antenna High Gain Antenna Uni-24High Gain 24dBi antenna TPA 24 Transmit Power Amplifier RF AccessoriesAntenna Characteristics Installing the TPA TPA 24 Connections DiagramLNA-10 Low Noise Receive Amplifier Achievable improvement through the use of LNA-10LNA Improvement table LNA-10 Cable Connection Diagram Installing the AL-1 Lightning ArrestorCable Types Thin CableThick Cable Low Loss CableAntenna Sets 11. Wall Mount with Azimuth Alignment Only12. Wall Mount with Azimuth and Elevation Alignment Range Tables European Range Table USA Range TableAntenna Alignment Visually Aligning the antennasActivating the front panel LEDs Maximum Unregulated Range Table14. Rssi measurement connection diagram To activate the front panel LEDs15. Rssi test point accuracy 048Mbps Wireless Modem 18. Default position NC of the Jumpers in the Receive Module Synchronizing Co-located Modem UnitsInstalling the Antennas Setting the relevant parametersMaximum Number Synchronized Links Connecting the Master units 21. Connecting Units for SynchronizationSet-up and Configuration Set-up and Configuration FunctionsAccessing the Set-up and Configuration Functions Main MenuCounters and Tracers Menu Mode and Access Control MenuParameters Menu System Reset TestingTo access the Parameters Menu To make selections using the Parameters menuE1 Parameters Menu Items and Actions LIU Parameters MenuE1 Parameters Menu E1 Alarm Buffer Fractional EI Parameters ManuRemote Alarm Method Fractional E1 parameters Menu Items and ActionsEcho Canceller disabling method Fractional E1 Alarm BufferLong haul/Short haul CRC4 UsageT1 Alarm Buffer T1 Parameters MenuT1 Parameters Menu Items and Actions Pulse ShapeFractional T1 Parameters Menu 048Mbps Wireless Modem 048Mbps Wireless Modem D4 Yellow Alarm Method Superframe MethodEcho Canceler CRC6 UsageBit 7 Zero Suppression Pulse Density EnforcerFractional T1 Alarm buffer DCE/DTE Functionality Options 35/RS530/X.21 Parameter MenuV.35/RS-530/X.21 Parameters Menu Items and Actions Loopback Mode Menu Loopback Mode Menu Items and Actions Clock PolarityLine Interface Unit Type Menu Options MCP Parameters MenuLine Interface Unit Type Menu Master-Slave Total Link DelayMCP Parameters Menu Options Central Site Management Using a Dial-up Modem Modem Initialisation StringAT&f\n 11. Default Modem Rate According to Selected LIU Data Rat Radio and Modem Parameters Menu10. Radio and Modem Parameters Menu Options Modem RateAdd/Remove Channels from Test Sequence Remote ParametersHoping Sequence 12. Remote Parameters Menu Options Switch to Remote MonitorSwitch to Local Monitor Load Default Values Menu Ping Remote UnitDownload remote database to remote unit Copy database and download to remote unit13. Load Default Values Menu options Parameter Info. ScreenTo access the Counters and Tracers Menu To make selections from the Counters and Tracers Menu2.048Mbps Wireless Modems Counter display System Counters14. Buffers Name and Description Channel Tracer Rssi per channel 15. Modem Rate Vs. Buffer SizeChannel Tracer Errors Per Channel 16. Rssi LevelsClear System Counters and Channel Tracer Time Tracer Errors versus TimeTime Tracer Max Consecutive Errors versus Time ⇒ To set the time intervals Set Time Tracer Resolution17. Delay Setting Reset Counters Clear Reset CounterWatch Alarms MessageDescription CorrectionRemote Frame Alarm Radio Alarms Message Rlos framer un-synchronizedGeneral Alarms Message Warning LIU Clock drift, Check clock configurationMessage Warning Difference in parameters between two units Change Access Rights Site Survey ModeSystem Reset Menu MenuTroubleshooting IntroductionProblem 2 Poor performance of radio link ⇒ To check the configuration of each unit⇒ To check RF Installation ⇒ To check radio link performanceTo check synchronization at radio level To correct the configuration⇒ To check each unit configuration From the Parameters menu, select Parameters Info. Screen 048Mbps Wireless Modem To improve data rate To view isolated bursts of errorsTo reduce echo on voice channels Problem 7 The system resets with an error message 048Mbps Wireless Modem Error Messages Source If the telephones does not work properly If Faxes does not work properly048Mbps Wireless Modem Technical Specifications Wireless Modem Technical Specifications ModelsRadio Type Transmission TechniqueDefault Modem Rate According to Selected LIU Data Rate Transmitter Output PowerChannel Bandwidth System BandwidthReceiver Sensitivity as a Function of the Radio BER Maximum Spurious LevelReceiver Sensitivity Adjacent Channel Rejection Maximum Receive LevelRecommended Receive Level Adjacent Channel Rejection Separate between TX and RX frequenciesFilter Curves Maximum Number of Links to SynchronizeMaximum Number of Synchronized Links Line Interface Specifications 101Fractional T1 Interface Fractional E1 InterfaceInterface RS-530 Interface103 Front Panel LED IndicatorsConnectors Standards Mechanical SpecificationsEnvironmental Specifications TPA 24 Technical Specifications LNA-10 Technical Specifications105 Antennas SetsAL-1 Technical Specifications 106107 DCE/DTE Configuration Configuration OptionsTable A-1. Possible DTE/DCE Configurations Appendix a V.35/RS-530/X.21 Applications048Mbps Wireless Modem Standard Configuration Table A-2. Configuration109 Synchronizing your Modem to Another NetworkConnecting your 2.048Mbps Wireless Modem to another modem RS-530/V.35/X.21 Back-to-Back Configuration111 DCE OptionsDTE Options Setting the DCE/DTE Mode ParameterTo set the DCE/DTE mode 113 E1/T1 Connections and Common Problems Link Setup Appendix B E1 / T1 ApplicationsTable B- 1. E1/T1 Connections E1/T1 LIU Jumper Settings115 To access the jumpers Figure B-2. E1/T1 Board LocationFigure B-3. E1 Unbalanced Coax connector, 75 W 117T1 CSU/DSU Applications Figure B-6. T1/DSU Network InterfaceE1/T1 Back-to-Back Configuration 119When to Use the Fractional E1/T1 LIU Appendix C Fractional E1/T1 ApplicationsTable C-1. Channels Characteristic 121Fractional E1 LIU Jumper Settings Table C-2. Fractional E1/T1 Connections123 Figure C-2. Fractional E1 Board LocationFigure C-3. Fractional E1 Unbalanced Coax connector, 75 W 125 Fractional T1 CSU/DSU ApplicationsFractional E1/T1 Back-to-Back Configuration Echo Cancellation in Fractional E1/T1 ApplicationsPotential Problems in Fractional E1/T1 Applications 127Appendix D Installing Other Types of Receive Amplifiers To separate DC input129 To supply DC input through the RF cableLIU RS-530 Connector Pin Assignments Appendix E Pin AssignmentsE1/T1 and Fractional E1/T1 Pin Connections Table E-1. E1/T1 and Fractional E1/T1 Pin Connections131 LIU D-25 to V.35 Cable Pin AssignmentsLIU D-25 to X.21 Cable Pin Assignments Figure E-3. LIU D-25 to X.21 Cable Pin Assignments