Properly | Black Box MWU2000-G703, MWU2000-X21, MWU2000-V35 instruction

2.048Mbps Wireless Modem

Problem 9: The fractional E1/T1 link is synchronised, but one or some systems that are
connected to the end equipment (i.e. telephone, fax voicemail) is not working
properly	93
Technical Specifications	95
Wireless Modem Technical Specifications	95
Models.. .......................................................................................................................95
Radio Type	95
Transmission Technique	95
Line Interface Specifications	101
Front Panel LED Indicators	103
Connectors	103
Mechanical Specifications	104
Environmental Specifications	104
Standards	104
Antennas Sets	105
TPA 24 Technical Specifications	105
LNA-10 Technical Specifications	105
AL-1 Technical Specifications	106
Appendix A - V.35/RS-530/X.21 Applications	108
DCE/DTE Configuration	108
V.35/RS-530/X.21 Standards	108
Configuration Options	108
2.048Mbps Wireless Modem Standard Configuration	109
Connecting your 2.048Mbps Wireless Modem to another modem	110
RS-530/V.35/X.21 Back-to-Back Configuration	110
Setting the Jumper Configuration for the LIU-V.35 and LIU RS-530/X.21 Boards	110
DCE Options	111
DTE Options	112
Setting the DCE/DTE Mode Parameter	112
Appendix B - E1 / T1 Applications	114
Introduction	114
E1/T1 Connections and Common Problems - Link Setup	114
E1/T1 LIU Jumper Settings	115
T1 CSU/DSU Applications	118
E1/T1 Back-to-Back Configuration	119
Appendix C – Fractional E1/T1 Applications	120
Introduction	120
When to Use the Fractional E1/T1 LIU	120
Fractional E1 LIU Jumper Settings	122
Fractional T1 CSU/DSU Applications	125
Fractional E1/T1 Back-to-Back Configuration	126
Echo Cancellation in Fractional E1/T1 Applications	126
Potential Problems in Fractional E1/T1 Applications	127

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Black Box MWU2000-G703, MWU2000-X21, MWU2000-V35 manual Properly

Contents

0118 965 Basingstoke Road, Reading, Berkshire RG2 0QN 048Mbps Wireless Modem Sales 0118 965 048Mbps Wireless Modem Contents Set-up and Configuration Properly General Introduction About this Manual 2.048Mbps Wireless Modem Product Description Versatility Error-Free Data TransferSeamless Communication High Speed Communication 048Mbps Wireless Modem Components Choice of Antennas, Cables and RF Accessories048Mbps Wireless Modem Benefits Co-location Line Interface Unit RS530 Modem Separate DSP Transmit and Receive Modems Fractional E1 with Echo CancellationFractional T1 With Echo Cancellation Adaptive Equalization Radio Antennas Front Panel Indicators GeneralLine RXD and TXD Rx SyncTX Sync 048Mbps Wireless Modem Connectors 048Mbps Wireless Modem Connections E1 or Fractional E1 LIU Installation Antennas and Accessories Installing the 2.048Mbps Wireless Modem GeneralPackage Components To Configure the Unit as Master To Set the Clock Rate V.35/RS-530/X.21 only To Configure Channels Fractional E1 To Configure Channels with Echo Cancellation- Fractional E1 To Configure Channels with Echo Cancellation- Fractional T1 To Configure Channels- Fractional T1 Antennas, Cables and Accessories Basic Antenna Uni-8.5 Basic 8.5 dBi Antenna Showing Installation screws Medium Gain 12dBi Antenna Uni-12 Medium Gain 12dBi Antenna Medium Gain 18dBi Antenna Uni-18 Medium Gain 18dBi Antenna High Gain Antenna Uni-24 High Gain 24dBi antenna RF Accessories Antenna CharacteristicsTPA 24 Transmit Power Amplifier Installing the TPA TPA 24 Connections Diagram LNA-10 Low Noise Receive Amplifier Achievable improvement through the use of LNA-10 LNA Improvement table LNA-10 Cable Connection Diagram Installing the AL-1 Lightning Arrestor Thick Cable Cable TypesThin Cable Low Loss Cable Antenna Sets 11. Wall Mount with Azimuth Alignment Only 12. Wall Mount with Azimuth and Elevation Alignment Range Tables European Range Table USA Range Table Activating the front panel LEDs Antenna AlignmentVisually Aligning the antennas Maximum Unregulated Range Table 14. Rssi measurement connection diagram To activate the front panel LEDs 15. Rssi test point accuracy 048Mbps Wireless Modem 18. Default position NC of the Jumpers in the Receive Module Synchronizing Co-located Modem Units Installing the Antennas Setting the relevant parameters Maximum Number Synchronized Links Connecting the Master units 21. Connecting Units for Synchronization Accessing the Set-up and Configuration Functions Set-up and ConfigurationSet-up and Configuration Functions Main Menu Mode and Access Control Menu Parameters MenuCounters and Tracers Menu To access the Parameters Menu System ResetTesting To make selections using the Parameters menu LIU Parameters Menu E1 Parameters MenuE1 Parameters Menu Items and Actions E1 Alarm Buffer Fractional EI Parameters Manu Remote Alarm Method Fractional E1 parameters Menu Items and Actions Long haul/Short haul Echo Canceller disabling methodFractional E1 Alarm Buffer CRC4 Usage T1 Parameters Menu Items and Actions T1 Alarm BufferT1 Parameters Menu Pulse Shape Fractional T1 Parameters Menu 048Mbps Wireless Modem 048Mbps Wireless Modem D4 Yellow Alarm Method Superframe Method Bit 7 Zero Suppression Echo CancelerCRC6 Usage Pulse Density Enforcer Fractional T1 Alarm buffer 35/RS530/X.21 Parameter Menu V.35/RS-530/X.21 Parameters Menu Items and ActionsDCE/DTE Functionality Options Loopback Mode Menu Loopback Mode Menu Items and Actions Clock Polarity MCP Parameters Menu Line Interface Unit Type MenuLine Interface Unit Type Menu Options Total Link Delay MCP Parameters Menu OptionsMaster-Slave Central Site Management Using a Dial-up Modem Modem Initialisation String AT&f\n 10. Radio and Modem Parameters Menu Options 11. Default Modem Rate According to Selected LIU Data RatRadio and Modem Parameters Menu Modem Rate Remote Parameters Hoping SequenceAdd/Remove Channels from Test Sequence Switch to Remote Monitor Switch to Local Monitor12. Remote Parameters Menu Options Download remote database to remote unit Load Default Values MenuPing Remote Unit Copy database and download to remote unit 13. Load Default Values Menu options Parameter Info. Screen To access the Counters and Tracers Menu To make selections from the Counters and Tracers Menu 2.048Mbps Wireless Modems Counter display System Counters 14. Buffers Name and Description Channel Tracer Rssi per channel 15. Modem Rate Vs. Buffer Size Channel Tracer Errors Per Channel 16. Rssi Levels Time Tracer Errors versus Time Time Tracer Max Consecutive Errors versus TimeClear System Counters and Channel Tracer Set Time Tracer Resolution 17. Delay Setting⇒ To set the time intervals Reset Counters Clear Reset Counter Description Watch AlarmsMessage Correction Remote Frame Alarm Radio Alarms Message Rlos framer un-synchronized General Alarms Message Warning LIU Clock drift, Check clock configuration Message Warning Difference in parameters between two units Change Access Rights Site Survey Mode System Reset Menu Menu Troubleshooting Introduction ⇒ To check RF Installation Problem 2 Poor performance of radio link⇒ To check the configuration of each unit ⇒ To check radio link performance To correct the configuration ⇒ To check each unit configurationTo check synchronization at radio level From the Parameters menu, select Parameters Info. Screen 048Mbps Wireless Modem To view isolated bursts of errors To reduce echo on voice channelsTo improve data rate 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 properly 048Mbps Wireless Modem Radio Type Technical SpecificationsWireless Modem Technical Specifications Models Transmission Technique Channel Bandwidth Default Modem Rate According to Selected LIU Data RateTransmitter Output Power System Bandwidth Maximum Spurious Level Receiver SensitivityReceiver Sensitivity as a Function of the Radio BER Maximum Receive Level Recommended Receive LevelAdjacent Channel Rejection Adjacent Channel Rejection Separate between TX and RX frequencies Maximum Number of Links to Synchronize Maximum Number of Synchronized LinksFilter Curves Line Interface Specifications 101 Interface Fractional T1 InterfaceFractional E1 Interface RS-530 Interface Front Panel LED Indicators Connectors103 Mechanical Specifications Environmental SpecificationsStandards 105 TPA 24 Technical SpecificationsLNA-10 Technical Specifications Antennas Sets AL-1 Technical Specifications 106 107 Table A-1. Possible DTE/DCE Configurations DCE/DTE ConfigurationConfiguration Options Appendix a V.35/RS-530/X.21 Applications 109 048Mbps Wireless Modem Standard ConfigurationTable A-2. Configuration Synchronizing your Modem to Another Network Connecting your 2.048Mbps Wireless Modem to another modem RS-530/V.35/X.21 Back-to-Back Configuration 111 DCE Options Setting the DCE/DTE Mode Parameter To set the DCE/DTE modeDTE Options 113 E1/T1 Connections and Common Problems Link Setup Appendix B E1 / T1 Applications E1/T1 LIU Jumper Settings 115Table B- 1. E1/T1 Connections To access the jumpers Figure B-2. E1/T1 Board Location Figure B-3. E1 Unbalanced Coax connector, 75 W 117 T1 CSU/DSU Applications Figure B-6. T1/DSU Network Interface E1/T1 Back-to-Back Configuration 119 When to Use the Fractional E1/T1 LIU Appendix C Fractional E1/T1 Applications Table C-1. Channels Characteristic 121 Fractional E1 LIU Jumper Settings Table C-2. Fractional E1/T1 Connections 123 Figure C-2. Fractional E1 Board Location Figure C-3. Fractional E1 Unbalanced Coax connector, 75 W 125 Fractional T1 CSU/DSU Applications Fractional E1/T1 Back-to-Back Configuration Echo Cancellation in Fractional E1/T1 Applications Potential Problems in Fractional E1/T1 Applications 127 Appendix D Installing Other Types of Receive Amplifiers To separate DC input 129 To supply DC input through the RF cable E1/T1 and Fractional E1/T1 Pin Connections LIU RS-530 Connector Pin AssignmentsAppendix E Pin Assignments Table E-1. E1/T1 and Fractional E1/T1 Pin Connections 131 LIU D-25 to V.35 Cable Pin Assignments LIU D-25 to X.21 Cable Pin Assignments Figure E-3. LIU D-25 to X.21 Cable Pin Assignments