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
39 of 64936.5468 0.92
8.2.6 Settings > Combiners
Parameter Description
Type
General
Combiner att control mode Manual: The attenuation of the input
power must be set manually
using the parameters Port x
attenuation value below.
Auto: The attenuation is set
automatically.
W
Adjust interval Period of the input power level being below
0 dB, after which the attenuation will be raised
(6/12/24 hours).
1)
24 hours is recommended.
W
Channel 1
Power switch W
UL freq low R
UL freq high R
DL freq low R
DL freq high R
Port x input-power value Input power level R
Port x attenuation value Attenuates the input-power to achieve Port x
input-power value to be 0 dBm.
W
Port x power offset Additional attenuation in case of rising
composite power due to multiple carriers input.
W
Port x operator Operator information, e.g. name
W
Channel 2 ... 4 See Channel 1
Tab. 5: Combiner parameters C-hub
1)
Example: The input power is less than maximum during a period of 24 hours, then the attenu-
ation decreases (2 dB).
2)
Example: A power offset of 3 dB is recommended if an input of 2 carriers exists.