Manuals
/
Black Box
/
Computer Equipment
/
Modem
Black Box
MWU2000-G703, MWU2000-X21, MWU2000-V35
manual
048Mbps Wireless Modem
Models:
MWU2000-G703
MWU2000-X21
MWU2000-V35
1
54
132
132
Download
132 pages
12 Kb
51
52
53
54
55
56
57
58
<
>
Troubleshooting
Specification
Antenna Characteristics
Install
Error codes
E1 Alarm Buffer
Error-Free Data Transfer
Total Link Delay
Front Panel Indicators
048Mbps Wireless Modem
Page 54
Image 54
2.048Mbps Wireless Modem
54
SALES: 0118 965 5100
Page 53
Page 55
Page 54
Image 54
Page 53
Page 55
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 Transfer
Seamless Communication
High Speed Communication
048Mbps Wireless Modem Components
Choice of Antennas, Cables and RF Accessories
048Mbps Wireless Modem Benefits
Co-location
Line Interface Unit
RS530
Modem Separate DSP Transmit and Receive Modems
Fractional E1 with Echo Cancellation
Fractional T1 With Echo Cancellation
Adaptive Equalization
Radio
Antennas
Front Panel Indicators
General
Line
RXD and TXD
Rx Sync
TX Sync
048Mbps Wireless Modem Connectors
048Mbps Wireless Modem Connections E1 or Fractional E1 LIU
Installation Antennas and Accessories
Installing the 2.048Mbps Wireless Modem General
Package 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 Characteristics
TPA 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 Types
Thin 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 Alignment
Visually 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 Configuration
Set-up and Configuration Functions
Main Menu
Mode and Access Control Menu
Parameters Menu
Counters and Tracers Menu
To access the Parameters Menu
System Reset
Testing
To make selections using the Parameters menu
LIU Parameters Menu
E1 Parameters Menu
E1 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 method
Fractional E1 Alarm Buffer
CRC4 Usage
T1 Parameters Menu Items and Actions
T1 Alarm Buffer
T1 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 Canceler
CRC6 Usage
Pulse Density Enforcer
Fractional T1 Alarm buffer
35/RS530/X.21 Parameter Menu
V.35/RS-530/X.21 Parameters Menu Items and Actions
DCE/DTE Functionality Options
Loopback Mode Menu Loopback Mode Menu Items and Actions
Clock Polarity
MCP Parameters Menu
Line Interface Unit Type Menu
Line Interface Unit Type Menu Options
Total Link Delay
MCP Parameters Menu Options
Master-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 Rat
Radio and Modem Parameters Menu
Modem Rate
Remote Parameters
Hoping Sequence
Add/Remove Channels from Test Sequence
Switch to Remote Monitor
Switch to Local Monitor
12. Remote Parameters Menu Options
Download remote database to remote unit
Load Default Values Menu
Ping 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 Time
Clear System Counters and Channel Tracer
Set Time Tracer Resolution
17. Delay Setting
⇒ To set the time intervals
Reset Counters
Clear Reset Counter
Description
Watch Alarms
Message
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 configuration
To 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 channels
To 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 Specifications
Wireless Modem Technical Specifications Models
Transmission Technique
Channel Bandwidth
Default Modem Rate According to Selected LIU Data Rate
Transmitter Output Power
System Bandwidth
Maximum Spurious Level
Receiver Sensitivity
Receiver Sensitivity as a Function of the Radio BER
Maximum Receive Level
Recommended Receive Level
Adjacent Channel Rejection
Adjacent Channel Rejection
Separate between TX and RX frequencies
Maximum Number of Links to Synchronize
Maximum Number of Synchronized Links
Filter Curves
Line Interface Specifications
101
Interface
Fractional T1 Interface
Fractional E1 Interface
RS-530 Interface
Front Panel LED Indicators
Connectors
103
Mechanical Specifications
Environmental Specifications
Standards
105
TPA 24 Technical Specifications
LNA-10 Technical Specifications
Antennas Sets
AL-1 Technical Specifications
106
107
Table A-1. Possible DTE/DCE Configurations
DCE/DTE Configuration
Configuration Options
Appendix a V.35/RS-530/X.21 Applications
109
048Mbps Wireless Modem Standard Configuration
Table 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 mode
DTE Options
113
E1/T1 Connections and Common Problems Link Setup
Appendix B E1 / T1 Applications
E1/T1 LIU Jumper Settings
115
Table 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 Assignments
Appendix 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
Top
Page
Image
Contents