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MWU2000-V35, MWU2000-G703, MWU2000-X21
manual
048Mbps Wireless Modem
Models:
MWU2000-G703
MWU2000-X21
MWU2000-V35
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Troubleshooting
Specifications
Antenna Characteristics
Install
Error messages
E1 Alarm Buffer
Error-Free Data Transfer
Total Link Delay
Front Panel Indicators
048Mbps Wireless Modem
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2.048Mbps Wireless Modem
TECHNICAL: 0118 931 2233
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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
Seamless Communication
Error-Free Data Transfer
Versatility
High Speed Communication
048Mbps Wireless Modem Benefits
Choice of Antennas, Cables and RF Accessories
048Mbps Wireless Modem Components
Co-location
RS530
Line Interface Unit
Fractional T1 With Echo Cancellation
Fractional E1 with Echo Cancellation
Modem Separate DSP Transmit and Receive Modems
Adaptive Equalization
Antennas
Radio
Line
Front Panel Indicators
General
TX Sync
RXD and TXD
Rx Sync
048Mbps Wireless Modem Connections E1 or Fractional E1 LIU
048Mbps Wireless Modem Connectors
Package Components
Installation Antennas and Accessories
Installing 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 Accessories
Antenna 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
Thin Cable
Cable Types
Thick Cable
Low Loss 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
Visually Aligning the antennas
Antenna Alignment
Activating the front panel LEDs
Maximum Unregulated Range Table
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
Set-up and Configuration Functions
Set-up and Configuration
Accessing the Set-up and Configuration Functions
Main Menu
Counters and Tracers Menu
Mode and Access Control Menu
Parameters Menu
Testing
System Reset
To access the Parameters Menu
To make selections using the Parameters menu
E1 Parameters Menu Items and Actions
LIU Parameters Menu
E1 Parameters Menu
Fractional EI Parameters Manu
E1 Alarm Buffer
Fractional E1 parameters Menu Items and Actions
Remote Alarm Method
Fractional E1 Alarm Buffer
Echo Canceller disabling method
Long haul/Short haul
CRC4 Usage
T1 Parameters Menu
T1 Alarm Buffer
T1 Parameters Menu Items and Actions
Pulse Shape
Fractional T1 Parameters Menu
048Mbps Wireless Modem
048Mbps Wireless Modem
Superframe Method
D4 Yellow Alarm Method
CRC6 Usage
Echo Canceler
Bit 7 Zero Suppression
Pulse Density Enforcer
Fractional T1 Alarm buffer
DCE/DTE Functionality Options
35/RS530/X.21 Parameter Menu
V.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 Menu
Line Interface Unit Type Menu
Master-Slave
Total Link Delay
MCP Parameters Menu Options
Modem Initialisation String
Central Site Management Using a Dial-up Modem
AT&f\n
Radio and Modem Parameters Menu
11. Default Modem Rate According to Selected LIU Data Rat
10. Radio and Modem Parameters Menu Options
Modem Rate
Add/Remove Channels from Test Sequence
Remote Parameters
Hoping Sequence
12. Remote Parameters Menu Options
Switch to Remote Monitor
Switch to Local Monitor
Ping Remote Unit
Load Default Values Menu
Download remote database to remote unit
Copy database and download 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 Time
Time Tracer Max Consecutive Errors versus Time
⇒ To set the time intervals
Set Time Tracer Resolution
17. Delay Setting
Clear Reset Counter
Reset Counters
Message
Watch Alarms
Description
Correction
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 the configuration of each unit
Problem 2 Poor performance of radio link
⇒ To check RF Installation
⇒ To check radio link performance
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 errors
To 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
Wireless Modem Technical Specifications Models
Technical Specifications
Radio Type
Transmission Technique
Transmitter Output Power
Default Modem Rate According to Selected LIU Data Rate
Channel Bandwidth
System Bandwidth
Receiver Sensitivity as a Function of the Radio BER
Maximum Spurious Level
Receiver Sensitivity
Adjacent Channel Rejection
Maximum Receive Level
Recommended Receive Level
Separate between TX and RX frequencies
Adjacent Channel Rejection
Filter Curves
Maximum Number of Links to Synchronize
Maximum Number of Synchronized Links
101
Line Interface Specifications
Fractional E1 Interface
Fractional T1 Interface
Interface
RS-530 Interface
103
Front Panel LED Indicators
Connectors
Standards
Mechanical Specifications
Environmental Specifications
LNA-10 Technical Specifications
TPA 24 Technical Specifications
105
Antennas Sets
106
AL-1 Technical Specifications
107
Configuration Options
DCE/DTE Configuration
Table A-1. Possible DTE/DCE Configurations
Appendix a V.35/RS-530/X.21 Applications
Table A-2. Configuration
048Mbps Wireless Modem Standard Configuration
109
Synchronizing your Modem to Another Network
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 Parameter
To 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 Settings
115
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
Appendix E Pin Assignments
LIU RS-530 Connector Pin Assignments
E1/T1 and Fractional E1/T1 Pin Connections
Table E-1. 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
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