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
Figure 27: Indicators (LEDs) of the IRU
Legend: Indicators (LEDs) of the IRU
No. LED Color Description
1 RUN green Flashes if the IRU is in operation
2 ALM red Lights in case of an error
3 CHU 1 to
4
green
n Lights if connections to CHUs exist
n Flashes if data are being transferred
3.2.9 Fan unit
The fan unit is used for cooling the installed components within the DIB-R5 advanced.
The air filter pad is affixed to the inside of the front equipment rack door and filters the dirt
and dust particles from the air.
The fan unit is implemented in the form of a fan subrack for the DIB-R5 advanced and
contains six fans. Each fan features an LED, so that the status is visible from the outside.
The temperatures of the hardware components CHU and BSCU are monitored at all
times and the fan speed is controlled dynamically.
The following figure shows the front view of the fan unit. The following table describes it in
detail.
Figure 28: Fan unit (front view)
Legend: Fan unit (front view)
No. Component Description
1 Mounting screw Screw for fastening in the equipment rack
2 Handle Recessed handle for pulling out the fan unit
3 Indicators (LEDs) Status display of the fan unit, refer to
Ä
Table “Legend: Indicators (LEDs) of the fan
unit” on page 51
Product description
Components> Fan unit
DIB-R5 advanced
50