User's Manual
Table Of Contents
- Table of contents
- 1 Notes on the document
- 2 Safety regulations
- 3 Product description
- 3.1 Characteristics of the DIB-R5
- 3.2 Components
- 3.3 Interfaces
- 3.4 Wiring diagrams
- 3.5 Redundancy options
- 3.6 Scope of delivery
- 4 Operation
- 4.1 Safety measures and prerequisites
- 4.2 Switching on the DIB-R5 flexibleTx
- 4.3 Function tests and operational monitoring
- 4.3.1 Work equipment for function tests
- 4.3.2 Connecting the service computer
- 4.3.3 Checking operating states
- 4.3.4 Checking the availability
- 4.3.5 Checking standby carriers ‒ optional
- 4.3.6 Function tests and GNSS operational monitoring
- 4.3.7 Function tests and PTP operational monitoring (optional)
- 4.3.8 Checking external antenna coupling systems
- 5 Service interruption
- 6 Recommissioning
- 7 Maintenance
- 8 Troubleshooting
- 9 Index
5 Service interruption
This chapter describes the procedure for the service interruption of the product.
A service interruption may be required in the following cases:
n Work on an open compact rack
n End of operation
n Malfunction
n Integration of further components
Possible restrictions for the operation
If a product is taken out of service, the operation of other parts in the radio network may
be impaired as well. Discuss this problem with your service partner to obtain detailed
information on risks and on recommended procedures.
5.1 Shutting down hardware components
The installed hardware components CHU and BSCU operate with different software com-
ponents that should be shut down properly. For this reason, these hardware components
must be shut down before switching off the DIB-R5 flexibleTx.
The following table provides an overview of the order in which the hardware components
should be shut down.
Shutting down hardware components (order)
Order Hardware component
1 BSCU (standby) ‒ optional
With redundant BSCUs (controller redundancy), the BSCU in standby
mode must be shut down first to prevent a switchover of the BSCUs.
The operating status of the BSCU is indicated via LEDs, refer to
Ä
Table “Legend: Indicators (LEDs) of the BSCU” on page 49.
2 BSCU (operational)
Shutting down the CHU
All installed CHUs are automatically shut down at the same time when shutting down
the BSCUs without standby BSCU (controller redundancy). The CHUs do not have to be
shut down individually except for service and maintenance purposes.
Service interruption
Shutting down hardware components
DIB-R5 flexibleTx
77Operation Manual 90DIBR5flexibleTxOM02 - 1.2