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
- 3.2.1 Connection and control panel
- 3.2.2 VAC voltage supply
- 3.2.3 VDC voltage supply
- 3.2.4 Divider Unit (DIU)
- 3.2.5 Transmitting filter
- 3.2.6 TETRA Channel Unit (CHU)
- 3.2.7 Base Station Controller Unit (BSCU)
- 3.2.8 Interconnection Relay Unit (IRU) ‒ only in the case of a CHU expansion
- 3.2.9 Fan unit
- 3.2.10 Cavity combiner
- 3.2.11 Backplane
- 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 advanced
- 4.3 Function tests and operating surveillance
- 5 Service interruption
- 6 Recommissioning
- 7 Maintenance
- 8 Troubleshooting
No. Component Description
4 RX4 Connector for the connection with CHU 4
5 Exp. BS Connector for the connection with a Passive Divider Unit
(PDU) in a second equipment rack ‒ only in case of more
than four CHUs
3.2.4.2 Passive Divider Unit (PDU) ‒ only in case of a CHU expansion
The Passive Divider Unit (PDU) is used for receiving and distributing the Rx signal
received by an RX FILTER. The Rx signals are passed on to the respective TETRA
Channel Units (CHU) by the PDU. The number of PDUs depends on the number of
receiving antennas (Rx antennas). One PDU is required for every Rx antenna.
PDUs are used only in base stations with more than four CHUs.
The following figure shows the front view of the PDU. The following table describes it in
detail.
Figure 17: PDU (front view)
Product description
Components> Divider Unit (DIU)
DIB-R5 advanced
39Operation Manual 90DIBR5advancedOM02 - 1.0