User's Manual
Table Of Contents
- 1 About this Document
- 2 General Information
- 3 Preconditions and Requirements
- 4 Installing the C-Hub
- 5 Installing the E-Hub
- 6 Installing the HPRU
- 7 Cabling
- 8 System Documentation
- 9 Glossary
- 10 List of Diagrams
- 11 List of Tables
- Fig. 1: Scope of delivery
- Fig. 2: Example of a handover point for the BTS signals at a c-rail
- Fig. 3: Example of a handover point for the BTS signals with individual loads with short patch cables at a c-rail
- Fig. 4: Clearance Ⓐ above radiation fins of the installed devices
- Fig. 5: Sliding rails Ⓑ
- Fig. 6: Power distribution bar ① mounted on the left-hand traverse
- Fig. 7: Plugs for power connection: ① is for red circuit, ② for black circuit
- Fig. 8: Attaching a 19" mounting bracket
- Fig. 9: Attached sliding rails Ⓑ
- Fig. 10: Place C-hub in rack
- Fig. 11: Fix C-hub with screws
- Fig. 12: Connect power cable at rear side
- Fig. 13: Connect ground cable at rear side
- Fig. 14: Attaching a 19" mounting bracket
- Fig. 15: Marking position of mounting holes
- Fig. 16: Mounting completed
- Fig. 17: Connect power cable at rear side
- Fig. 18: Connect ground cable at rear side
- Fig. 19: Attaching handle
- Fig. 20: Attaching bracket Ⓐ
- Fig. 21: Marking mounting holes for bracket Ⓑ
- Fig. 22: Prepare expansion bolts for bracket Ⓑ
- Fig. 23: Mounting accessories for bracket Ⓑ
- Fig. 24: Bracket Ⓑ mounted
- Fig. 25: Hook HPRU into bracket Ⓑ (①) and fix from top (②).
- Fig. 26: HPRU fixed from top
- Fig. 27: Fix HPRU from side
- Fig. 28: Connect power cable at bottom side
- Fig. 29: Connect ground cable at bottom side
- Fig. 30: Interfaces at the C-hub front side
- Fig. 31: Interfaces at the C-hub rear side
- Fig. 32: Interfaces at the E-hub front side
- Fig. 33: Interfaces at the E-hub rear side
- Fig. 34: Interfaces at the HPRU connector side
- Fig. 35: Fibre optical cable layout
- Fig. 36: Coaxial cable layout
- Fig. 37: Power supply cable layout
- Tab. 1: Symbols and signal words
- Tab. 2: Storage of the system documentation
43 of 50936.5467 0.92
7.3 Helpful Hints for Cabling
7.3.1 Measuring Fibre Optic Cables
After cabling with bre optic cables that have been assembled on site, it is necessary to
check whether the bre optic cables are still functioning. The purpose of this is to detect
joints, for instance at plug connections, and damaged cables.
A. Using an OTDR measurement device
1)
, check every bre optic lead for reection points.
If necessary, use a lead-through bre.
B. Save the measurement results in the measurement device.
C. If no faults were found in step A, measure the bre optic power
2)
at the ends of the
bres and record these values.
D. Save the measurement results in the measurement device.
E. Transfer all the measurement results into a measurement report.
1)
The details for operating the measurement device can be found in the operating instructions.
2)
The performance must satisfy the required minimum level of the signal. See the data sheet for
the components.
7.3.2 Replacing Defective Cables within a Rack
Defective cables connecting components within a rack must be replaced. This applies to all
types of cable.
A. Slacken the cable ties.
B. Replace the defective cables.
C. Tighten the cable ties. When doing this, comply with the cabling rules in the document
K-BOW Cabling Guidelines.
7.3.3 Repairing Defective Cables between Parts of the Building
Defective cables between buildings or between parts of a building
1)
must be professionally
repaired and calibrated. An appropriate measurement report must be attached to the
location documentation.
Caution
Risk of injury due to sharp edges of glass bres.
► Close off the open ends of bre optic cables with shrink sleeving, and shrink them by
applying hot air.
1)
e.g. hybrid cables, multi-bre cables