User's Manual
Table Of Contents
- 1. General
- 2. Introduction
- 3. Functional Description
- 4. Commissioning
- 4.1. General
- 4.2. High Power RU Mechanical Installation
- 4.3. Electrical Installation
- 4.3.1. Health and Safety for electrical installation
- 4.3.2. Property Damage Warnings for electrical installation
- 4.3.3. Connections
- 4.3.4. Grounding (Earthing)
- 4.3.5. Connection of the antenna cable
- 4.3.6. Mains power connection
- 4.3.7. Extension Unit port connection
- 4.3.8. External alarm In / Out port
- 4.3.9. RS 485 /+28 V port
- 4.3.10. Local interface port
- 4.3.11. Coupling Probe
- 4.3.12. Optical-fiber cable connection
- 4.3.13. Assembly instructions for optical LC patch cables
- 4.3.14. Optional equipment for optical fiber connection
- 4.4. Commissioning Flow-Chart
- 5. Alarms
- 6. Maintenance
- 7. Appendix
- 8. Index
6. Maintenance
Page 52 M0200A8C_uc_ION-U_H_7P_80-85P_17P_19P User’s Manual for ION
®
-U
6.3. Cleaning the Heat Sink
F Note: Read and observe chapter 1.2 Health and Safety as well as the
instructions in chapter 6.1 General before starting with the replacement
procedure. Then, proceed as follows:
1. Switch off the Remote Unit. Make sure that mains power is disconnected for the
following procedure.
2. Remove the fan cover and fan unit from the Remote Unit as described in chapter
6.2 Replacing the Fan Unit.
3. Use compressed air (max. 5 bars) to blow out any dust, dirt, or other debris in the
heat sink from back to front.
4. If the dirt cannot be blown out completely and parts of it stick to the ribs of the
heat sink, clean the parts concerned carefully from the front using e.g. a brush.
Take care that the heat sink material is not scratched or damaged.
5. After cleaning the heat sink, remount the fan unit according to chapter 6.2
Replacing the Fan Unit. Then, switch the Remote Unit back on.