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
No. LED Color Description
3 RUN green Lights if the CHU is in operation
4 STB yellow Lights if the CHU is in standby operation
3.2.6 Base Station Controller Unit (BSCU)
The Base Station Controller Unit (BSCU) is the control unit of the base station and
secures the connections inside of the DIB-R5 flexibleTx as well as to external network
constituents such as system controller nodes.
In addition, the BSCU receives and distributes the clock and time signals for the synchro-
nization of the base stations that are acquired via the integrated GNSS component
(Global Navigation Satellite System) with a connected antenna. GNSS includes all the
common systems, such as GPS, Galileo and Glonass. As an option, time is obtained via
the Precision Time Protocol (PTP) from a so-called reference time source (grandmaster
clock).
In addition, the BSCU is the interface to ACCESSNET-T IP and, as such, secures the
connection to other network constituents, such as system controller nodes, the network
management system (NMS) or applications.
The BSCU is a modular subrack for the DIB-R5 flexibleTx and is installed in the basic
rack. To increase availability, up to two BSCUs can be installed. If the first BSCU fails, the
redundant BSCU automatically assumes operation in order to quickly resume the radio
coverage. The failed BSCU can now be replaced during running operation.
The following figure shows the front view of the BSCU. The following table describes it in
detail.
Product description
Components > Base Station Controller Unit (BSCU)
DIB-R5 flexibleTx
47Operation Manual 90DIBR5flexibleTxOM02 - 1.2