User's Manual
Table Of Contents
- 1.0 Preface
- 2.0 Introduction
- 3.0 Installation
- 3.1 Compliance Alert - Operation in the 3.4 - 3.6 GHz Band
- 3.2 Operation in the 3.650 - 3.675 GHz Band
- 3.3 Installation Warnings
- 3.4 Environmental Cautions
- 3.5 Installing Outdoor Equipment
- 3.6 Installing an Optional Sector Antenna
- 3.7 Installing Optional Omnidirectional Antenna
- 3.8 Installing the Access Point
- 3.9 Power and Data Connections - AC and DC Power Options
- 4.0 Configuring an Access Point for Single-Channel Use
- 5.0 Maintenance Guide
- Appendix A: NIA/Power Adapter Specifications: Model # TR60A-POE-L
- Appendix B: ExcelMax DC PSU/NIA (020-44109-0802)
- Appendix C: Glossary of Terms and Abbreviations
EXCELMAX ACCESS POINT CELL INSTALLATION AND MAINTENANCE GUIDE VERSION 1.4
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5.0 Maintenance Guide
This section is intended for use by all Field Service Engineers.
Catastrophic failures can often be prevented by a re
gimen of preventative maintenance. The
following is a list of maintenance suggestions supported by Axxcelera.
1) Per
form regular visual inspections. Check the butyl-rubber waterproofing tape used to cover
the cable connectors for integrity.
2) Check areas around ground clamps for any signs of oxidation or corrosion that might
compromise the connection.
3) Periodically check the connectors for tightness.
4) Take care not to compromise the integrity of the cabling. IF, RF and Ethernet cabling can
become damaged if it becomes pinched, for example during site construction or renovation.
5) Periodically check the integrity of the signal path clearance between the Access Point and the
CPE. It may seem obvious, but when service is disrupted, and there is no obvious suspect
hardware, it is possible that something in the environment has changed and the RF path itself
is suspect. The path that was unobstructed yesterday might not be so clear today.
6) Check for near-field objects. No metallic objects, such as telephone or power wires, poles or
fences, should be within the field view of the antenna (+/- 8 degrees) within the first 20 feet.
These objects could reflect the microwave energy back to the antenna and distort the RF
beam. This reflection could also cause the signal to be directed away from where it is needed.
7) Non-metallic objects in the vicinity can absorb microwave energy; however, when they become
wet, these objects can become very reflective. Shots over water or flat surfaces should be
avoided because these surfaces cause reflections that increase multipath. Multipath is when
the same signal is received twice; one signal is the direct path and the other is the reflected
(delayed) signal. The delayed signal can be out of phase with the direct signal and cause
cancellation.
8) Periodically check for ground loops that might be introduced into the system inadvertently by
engineers adding new equipment without regard to the grounding system already in place.
Ground loops can cause noise problems in the system.