Co-location | Black Box MWU2000-V35, MWU2000-G703, MWU2000-X21

2.048Mbps Wireless Modem

RSSI

Antenna reception can be fine-tuned by checking the strength of the received signal. To check signal strength, connect a Digital Voltmeter (DVM) to the Receive Signal Strength Indicator (RSSI) test point on the rear panel of the2.048Mbps Wireless Modem.

Co-location

This option enables to simultaneously establish a number of co-located links in star or parallel topology, when they are synchronized in frequency via a synchronizing cable. Using this option may be restricted by regulation in certain countries.

Choice of Antennas, Cables and RF Accessories

Several optional types of antennas, cables and RF accessories are provided allowing selection of the RF components best suited for different applications.

2.048Mbps Wireless Modem Benefits

•Provides a cost-effective alternative to leased telephone cable service.

•Saves the expense of costly wire or fibre optic cable installation.

•Connects off-shore installations and sites separated by water, hazardous terrain or difficult weather conditions.

•Is simple to install, giving immediate communication ability to remote sites.

•Links headquarters with branch offices.

•Provides a back-up link for cable connections.

2.048Mbps Wireless Modem Components

The 2.048Mbps Wireless Modem is comprised of four main components:

•Line Interface Unit

•Modem

•Radio

•Antennas

These components are described in detail in the following sections.

TECHNICAL: 0118 931 2233

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Black Box MWU2000-V35 manual Co-location, Choice of Antennas, Cables and RF Accessories, 048Mbps Wireless Modem Benefits

Contents

Basingstoke Road, Reading, Berkshire RG2 0QN 0118 965 Sales 0118 965 048Mbps Wireless Modem 048Mbps Wireless Modem Contents Set-up and Configuration Properly General About this Manual Introduction Product Description 2.048Mbps Wireless Modem High Speed Communication Error-Free Data TransferSeamless Communication Versatility Co-location Choice of Antennas, Cables and RF Accessories048Mbps Wireless Modem Benefits 048Mbps Wireless Modem Components RS530 Line Interface Unit Adaptive Equalization Fractional E1 with Echo CancellationFractional T1 With Echo Cancellation Modem Separate DSP Transmit and Receive Modems Antennas Radio Line Front Panel IndicatorsGeneral TX Sync RXD and TXDRx Sync 048Mbps Wireless Modem Connections E1 or Fractional E1 LIU 048Mbps Wireless Modem Connectors Package Components Installation Antennas and AccessoriesInstalling the 2.048Mbps Wireless Modem General To Set the Clock Rate V.35/RS-530/X.21 only To Configure the Unit as Master To Configure Channels with Echo Cancellation- Fractional E1 To Configure Channels Fractional E1 To Configure Channels- Fractional T1 To Configure Channels with Echo Cancellation- Fractional T1 Basic Antenna Uni-8.5 Antennas, Cables and Accessories Medium Gain 12dBi Antenna Uni-12 Basic 8.5 dBi Antenna Showing Installation screws Medium Gain 18dBi Antenna Uni-18 Medium Gain 12dBi Antenna High Gain Antenna Uni-24 Medium Gain 18dBi Antenna High Gain 24dBi antenna TPA 24 Transmit Power Amplifier RF AccessoriesAntenna Characteristics TPA 24 Connections Diagram Installing the TPA Achievable improvement through the use of LNA-10 LNA-10 Low Noise Receive Amplifier LNA Improvement table Installing the AL-1 Lightning Arrestor LNA-10 Cable Connection Diagram Low Loss Cable Cable TypesThin Cable Thick Cable 11. Wall Mount with Azimuth Alignment Only Antenna Sets 12. Wall Mount with Azimuth and Elevation Alignment European Range Table USA Range Table Range Tables Maximum Unregulated Range Table Antenna AlignmentVisually Aligning the antennas Activating the front panel LEDs To activate the front panel LEDs 14. Rssi measurement connection diagram 15. Rssi test point accuracy 048Mbps Wireless Modem Synchronizing Co-located Modem Units 18. Default position NC of the Jumpers in the Receive Module Setting the relevant parameters Installing the Antennas Maximum Number Synchronized Links 21. Connecting Units for Synchronization Connecting the Master units Main Menu Set-up and ConfigurationSet-up and Configuration Functions Accessing the Set-up and Configuration Functions Counters and Tracers Menu Mode and Access Control MenuParameters Menu To make selections using the Parameters menu System ResetTesting To access the Parameters Menu E1 Parameters Menu Items and Actions LIU Parameters MenuE1 Parameters Menu Fractional EI Parameters Manu E1 Alarm Buffer Fractional E1 parameters Menu Items and Actions Remote Alarm Method CRC4 Usage Echo Canceller disabling methodFractional E1 Alarm Buffer Long haul/Short haul Pulse Shape T1 Alarm BufferT1 Parameters Menu T1 Parameters Menu Items and Actions Fractional T1 Parameters Menu 048Mbps Wireless Modem 048Mbps Wireless Modem Superframe Method D4 Yellow Alarm Method Pulse Density Enforcer Echo CancelerCRC6 Usage Bit 7 Zero Suppression Fractional T1 Alarm buffer DCE/DTE Functionality Options 35/RS530/X.21 Parameter MenuV.35/RS-530/X.21 Parameters Menu Items and Actions Clock Polarity Loopback Mode Menu Loopback Mode Menu Items and Actions Line Interface Unit Type Menu Options MCP Parameters MenuLine Interface Unit Type Menu Master-Slave Total Link DelayMCP Parameters Menu Options Modem Initialisation String Central Site Management Using a Dial-up Modem AT&f\n Modem Rate 11. Default Modem Rate According to Selected LIU Data RatRadio and Modem Parameters Menu 10. Radio and Modem Parameters Menu Options Add/Remove Channels from Test Sequence Remote ParametersHoping Sequence 12. Remote Parameters Menu Options Switch to Remote MonitorSwitch to Local Monitor Copy database and download to remote unit Load Default Values MenuPing Remote Unit Download remote database to remote unit Parameter Info. Screen 13. Load Default Values Menu options To make selections from the Counters and Tracers Menu To access the Counters and Tracers Menu System Counters 2.048Mbps Wireless Modems Counter display 14. Buffers Name and Description 15. Modem Rate Vs. Buffer Size Channel Tracer Rssi per channel 16. Rssi Levels Channel Tracer Errors Per Channel Clear 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 Clear Reset Counter Reset Counters Correction Watch AlarmsMessage Description Remote Frame Alarm Message Rlos framer un-synchronized Radio Alarms Message Warning LIU Clock drift, Check clock configuration General Alarms Message Warning Difference in parameters between two units Site Survey Mode Change Access Rights Menu System Reset Menu Introduction Troubleshooting ⇒ To check radio link performance Problem 2 Poor performance of radio link⇒ To check the configuration of each unit ⇒ To check RF Installation To 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 Faxes does not work properly If the telephones does not work properly 048Mbps Wireless Modem Transmission Technique Technical SpecificationsWireless Modem Technical Specifications Models Radio Type System Bandwidth Default Modem Rate According to Selected LIU Data RateTransmitter Output Power Channel Bandwidth Receiver Sensitivity as a Function of the Radio BER Maximum Spurious LevelReceiver Sensitivity Adjacent Channel Rejection Maximum Receive LevelRecommended Receive Level Separate between TX and RX frequencies Adjacent Channel Rejection Filter Curves Maximum Number of Links to SynchronizeMaximum Number of Synchronized Links 101 Line Interface Specifications RS-530 Interface Fractional T1 InterfaceFractional E1 Interface Interface 103 Front Panel LED IndicatorsConnectors Standards Mechanical SpecificationsEnvironmental Specifications Antennas Sets TPA 24 Technical SpecificationsLNA-10 Technical Specifications 105 106 AL-1 Technical Specifications 107 Appendix a V.35/RS-530/X.21 Applications DCE/DTE ConfigurationConfiguration Options Table A-1. Possible DTE/DCE Configurations Synchronizing your Modem to Another Network 048Mbps Wireless Modem Standard ConfigurationTable A-2. Configuration 109 RS-530/V.35/X.21 Back-to-Back Configuration Connecting your 2.048Mbps Wireless Modem to another modem DCE Options 111 DTE Options Setting the DCE/DTE Mode ParameterTo set the DCE/DTE mode 113 Appendix B E1 / T1 Applications E1/T1 Connections and Common Problems Link Setup Table B- 1. E1/T1 Connections E1/T1 LIU Jumper Settings115 Figure B-2. E1/T1 Board Location To access the jumpers 117 Figure B-3. E1 Unbalanced Coax connector, 75 W Figure B-6. T1/DSU Network Interface T1 CSU/DSU Applications 119 E1/T1 Back-to-Back Configuration Appendix C Fractional E1/T1 Applications When to Use the Fractional E1/T1 LIU 121 Table C-1. Channels Characteristic Table C-2. Fractional E1/T1 Connections Fractional E1 LIU Jumper Settings Figure C-2. Fractional E1 Board Location 123 Figure C-3. Fractional E1 Unbalanced Coax connector, 75 W Fractional T1 CSU/DSU Applications 125 Echo Cancellation in Fractional E1/T1 Applications Fractional E1/T1 Back-to-Back Configuration 127 Potential Problems in Fractional E1/T1 Applications To separate DC input Appendix D Installing Other Types of Receive Amplifiers To supply DC input through the RF cable 129 Table E-1. E1/T1 and Fractional E1/T1 Pin Connections LIU RS-530 Connector Pin AssignmentsAppendix E Pin Assignments E1/T1 and Fractional E1/T1 Pin Connections LIU D-25 to V.35 Cable Pin Assignments 131 Figure E-3. LIU D-25 to X.21 Cable Pin Assignments LIU D-25 to X.21 Cable Pin Assignments