Seamless Communication, Versatility | Black Box MWU2000-X21 manual

2.048Mbps Wireless Modem

Main Features of the 2.048Mbps Wireless Modem

Wireless Connectivity

The 2.048Mbps Wireless Modem provides a wireless data link. The DSP modem with adaptive equalization provides robust and reliable communication, overcoming problems caused by fading or interfering signals.

Seamless Communication

A full-duplex system with independent transmitting and receiving modems and RF channels allows seamless two-way communication.

Versatility

The 2.048Mbps Wireless Modem can transfer any kind of data, voice or video transmissions and can be operated together with most types of bridges, routers and multiplexers. The system supports the E1/T1 communication standards and with the appropriate Line Interface Unit, is compatible with any other communication link standards and operates transparently to data protocols. Fractional E1/T1 applications with voice channels are supported by a special line interface unit, incorporating a built-in echo canceller for improved voice quality.

Error-Free Data Transfer

Spread Spectrum Frequency Hopping gives reliable low BER (Bit Error Rate) data transfer and protection against interference. Error correction is provided by ARQ (Automatic Retransmission Queuing).

High Speed Communication

High data rates enable fast, time saving communication. The 2.048Mbps Wireless Modem supports full E1 rate of 2048 Kbps, full T1 rate of 1544 Kbps and transparent synchronous speeds of n x 64 Kbps.

Easy Control and Monitoring

Eight LED indicators are provided for system status monitoring. Simple, easy to use management menus provide configuration and diagnostics for both the local and remote unit via an RS-232/V.24 connection. For further information on LED indicators see page15.

Remote Management

2.048Mbps Wireless Modem enables management of each unit from the other unit through the Radio link.

10	SALES: 0118 965 5100

Image 10

Black Box MWU2000-X21, MWU2000-V35 Seamless Communication, Versatility, Error-Free Data Transfer, High Speed Communication

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 General Front Panel IndicatorsLine Rx Sync RXD and TXDTX Sync 048Mbps Wireless Modem Connectors 048Mbps Wireless Modem Connections E1 or Fractional E1 LIU Installing the 2.048Mbps Wireless Modem General Installation Antennas and AccessoriesPackage 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 Antenna Characteristics RF AccessoriesTPA 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 Parameters Menu Mode and Access Control MenuCounters and Tracers Menu To access the Parameters Menu System ResetTesting To make selections using the Parameters menu E1 Parameters Menu LIU 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 V.35/RS-530/X.21 Parameters Menu Items and Actions 35/RS530/X.21 Parameter MenuDCE/DTE Functionality Options Loopback Mode Menu Loopback Mode Menu Items and Actions Clock Polarity Line Interface Unit Type Menu MCP Parameters MenuLine Interface Unit Type Menu Options MCP Parameters Menu Options Total Link DelayMaster-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 Hoping Sequence Remote ParametersAdd/Remove Channels from Test Sequence Switch to Local Monitor Switch to Remote 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 Max Consecutive Errors versus Time Time Tracer Errors versus TimeClear System Counters and Channel Tracer 17. Delay Setting Set Time Tracer Resolution⇒ 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 check each unit configuration To correct the configurationTo check synchronization at radio level From the Parameters menu, select Parameters Info. Screen 048Mbps Wireless Modem To reduce echo on voice channels To view isolated bursts of errorsTo 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 Receiver Sensitivity Maximum Spurious LevelReceiver Sensitivity as a Function of the Radio BER Recommended Receive Level Maximum Receive LevelAdjacent Channel Rejection Adjacent Channel Rejection Separate between TX and RX frequencies Maximum Number of Synchronized Links Maximum Number of Links to SynchronizeFilter Curves Line Interface Specifications 101 Interface Fractional T1 InterfaceFractional E1 Interface RS-530 Interface Connectors Front Panel LED Indicators103 Environmental Specifications Mechanical 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 To set the DCE/DTE mode Setting the DCE/DTE Mode ParameterDTE Options 113 E1/T1 Connections and Common Problems Link Setup Appendix B E1 / T1 Applications 115 E1/T1 LIU Jumper SettingsTable 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