User's Manual
Table Of Contents
- 1. GENERAL
- 2. INTRODUCTION
- 3. COMMISSIONING
- 3.1. MECHANICAL INSTALLATION
- 3.2. ELECTRICAL INSTALLATION
- 3.3. CONNECTION OF THE ANTENNA CABLES
- 3.4. POWER CONNECTION
- 3.5. OPTICAL-FIBER-CABLE CONNECTION - RULES
- 3.6. COMMISSIONING
- 3.7. BITE AND ALARMS
- 3.8. HANDLING OF ALARMS
- 3.9. ALARM STATUS
- 3.10. STATUS LED ALARMS
- 3.11. EXTERNAL ALARM INPUTS AND OUTPUTS
- 3.12. TROUBLESHOOTING
- 4. MAINTENANCE
- 5. APPENDIX
- 6. INDEX
- LIST OF CHANGES
3.3. CONNECTION OF THE ANTENNA CABLES
The Remote Unit has 7/16-type antenna connectors. Please refer to section 3.2.2
Connections for its location. Refer to the corresponding documentation of the
connector manufacturer for mounting the cable connectors.
The bending radius of the antenna cables must remain within the given
specifications.
Consider the type of cable best suited for the antenna. Remember that a cable with
higher loss is less expensive but impairs performance.
Use an appropriate torque wrench for the coupling torque (25 N-m / 19 ft
lb) of 7/16 DIN connectors with 1 ¼-inch opening to tighten the 7/16-type
antenna connectors. For example, use torque wrench of item no. 244377
available from the Andrew e-catalog. Do NOT use your hands or any
other tool (e.g. a pair of pliers)! This might cause damage to the
connector and lead to a malfunction of the Remote Unit.
To minimize passive inter-modulation (PIM) distortion, attention has to
be paid to the physical condition of the connector junctions. Do not use
connectors that show signs of corrosion on the metal surface. Prevent
the ingress of water into the connector. Attach and torque the
connectors properly.
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