User Manual
Axell Wireless Limited
Technical Literature
MWAA Primary F/O Head End Documentation
B010 IF BDA 60-174202
Document Number 60-174202HBK Issue No. 1 Date 23/07/2009 Page 2 of 24
Table of Contents
1. Introduction ..................................................................................................................................3
1.1. Scope and Purpose of Document ..........................................................................................3
1.2. Limitation of Liability Notice.................................................................................................... 3
2. Safety Considerations .................................................................................................................. 4
2.1. Earthing of Equipment............................................................................................................ 4
2.2. Electric Shock Hazard............................................................................................................ 4
2.3. RF Radiation Hazard.............................................................................................................. 4
2.4. Lifting and other Health and Safety Recommendations ......................................................... 4
2.5. Chemical Hazard.................................................................................................................... 5
2.6. Laser Safety ........................................................................................................................... 5
2.7. Emergency Contact Numbers ................................................................................................ 5
3. MWAA Primary Headend B010 IF BDA 60-174202..................................................................... 6
3.1. 60-174202 List of Major Sub-Components............................................................................. 6
3.2. 60-174202 System Diagram................................................................................................... 7
3.3. 60-174202 Auxiliary Alarm Wiring Diagram ........................................................................... 8
3.4. 60-174202 Front Panel........................................................................................................... 9
3.5. 60-174202 Rear Panel ......................................................................................................... 10
4. Installation – General Notes.......................................................................................................11
4.1 General Remarks ................................................................................................................. 11
4.2 Electrical Connections.......................................................................................................... 11
4.3 RF Connections....................................................................................................................11
4.3.1. Termination of Unused Ports................................................................................................ 12
4.4 Optical Connections ............................................................................................................. 12
4.5 Commissioning..................................................................................................................... 12
4.6 Antenna Installation & Gain Calculations ............................................................................. 12
4.7 Antenna Isolation..................................................................................................................13
5. Maintenance............................................................................................................................... 14
5.1. Fault Finding......................................................................................................................... 14
5.1.1. Quick Fault Checklist........................................................................................................ 14
5.1.2 Fault Isolation ................................................................................................................... 14
5.1.3 Downlink........................................................................................................................... 15
5.1.4 Uplink ...............................................................................................................................15
5.1.5 Checking service .............................................................................................................. 15
5.1.6 Fault repair ....................................................................................................................... 15
5.1.7 Service Support................................................................................................................15
5.2 Tools & Test Equipment ....................................................................................................... 16
5.3 Care of Modules...................................................................................................................16
5.3.1 General Comments .......................................................................................................... 16
5.3.2 LNA Replacement (general procedure)............................................................................16
5.3.3 Module Replacement (general procedure)....................................................................... 16
5.3.4 Power Amplifier Replacement (general procedure) ......................................................... 17
5.3.5 Low Power Amplifier Replacement (general procedure).................................................. 17
5.3.6 Module Transportation: .................................................................................................... 18
Appendix A........................................................................................................................................... 19
A.1. Glossary of Terms used in this document ............................................................................ 19
A.2. Key to Drawing Symbols used in this document ..................................................................20
A.3. EC Declaration of Conformity............................................................................................... 21
A.4. Waste Electrical and Electronic Equipment (WEEE) Notice ................................................ 22
A.5. Document Amendment Record ............................................................................................ 23
Appendix B........................................................................................................................................... 24
B.1 Initial Equipment Set-Up Calculations..................................................................................24