Handbook
Axell Wireless Limited
Technical Literature
MWAA Primary F/O Head End Documentation
BDA Shelf 60-214802
Document Number 60-214802HBK Issue No. 1 Date 23/07/2009 Page 2 of 23
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. BDA Shelf 60-214802 .................................................................................................................. 6
3.1. 60-214802 List of Major Sub Components............................................................................. 6
3.2. 60-214802 System Diagram................................................................................................... 7
3.3. 60-214802 Alarm Wiring Diagram .......................................................................................... 8
3.4. 60-214802 Front Panel........................................................................................................... 9
3.5. 60-214802 Rear Panel ........................................................................................................... 9
4. Installation – General Notes.......................................................................................................10
4.1 General Remarks ................................................................................................................. 10
4.2 Electrical Connections.......................................................................................................... 10
4.3 RF Connections....................................................................................................................10
4.3.1. Termination of Unused Ports................................................................................................ 11
4.4 Optical Connections ............................................................................................................. 11
4.5 Commissioning..................................................................................................................... 11
4.6 Antenna Installation & Gain Calculations ............................................................................. 11
4.7 Antenna Isolation..................................................................................................................12
5. Maintenance............................................................................................................................... 13
5.1. Fault Finding......................................................................................................................... 13
5.1.1. Quick Fault Checklist........................................................................................................ 13
5.1.2 Fault Isolation ................................................................................................................... 13
5.1.3 Downlink........................................................................................................................... 14
5.1.4 Uplink ...............................................................................................................................14
5.1.5 Checking service .............................................................................................................. 14
5.1.6 Fault repair ....................................................................................................................... 14
5.1.7 Service Support................................................................................................................14
5.2 Tools & Test Equipment ....................................................................................................... 15
5.3 Care of Modules...................................................................................................................15
5.3.1 General Comments .......................................................................................................... 15
5.3.2 LNA Replacement (general procedure)............................................................................ 15
5.3.3 Module Replacement (general procedure)....................................................................... 15
5.3.4 Power Amplifier Replacement (general procedure) ......................................................... 16
5.3.5 Low Power Amplifier Replacement (general procedure).................................................. 16
5.3.6 Module Transportation: .................................................................................................... 17
Appendix A........................................................................................................................................... 18
A.1. Glossary of Terms used in this document ............................................................................ 18
A.2. Key to Drawing Symbols used in this document ..................................................................19
A.3. EC Declaration of Conformity............................................................................................... 20
A.4. Waste Electrical and Electronic Equipment (WEEE) Notice ................................................ 21
A.5. Document Amendment Record ............................................................................................ 22
Appendix B........................................................................................................................................... 23
B.1 Initial Equipment Set-Up Calculations..................................................................................23