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
n Class 2 and class 3 air interface encryption (encrypted voice and data communica-
tion)
n Authentication (with respect to the base station)
n Priority calls, emergency calls, pre-emptive priority calls
n Queue, depending on the priority level of the call
n Rejection of a call from/to an unknown subscriber
n Rejection with the reason "busy" if the subscriber is already making a call or the pri-
ority of the incoming call is minor
n Configurable call time limit
n Inactivity timer (ending semi-duplex calls after the configured inactivity time has
expired)
Fallback operation is the emergency operating mode of base stations in networks with
centralized switching architecture. The unavailability of network-wide services is signaled
to the terminals and taken into account by them during the cell selection.
3.5.5
Stand-alone operation
The radio coverage of base stations with Switching Controller Function (SCF) in networks
with distributed switching architecture continues to be ensured if they lose the connection
to all other network constituents with SCF. In this case the base station switches to stand-
alone operation.
In stand-alone operation, the base station in its radio cell will perpetuate the Base Station
Function (BSF) as well as all the other local services and gateways (Application Gateway
(AGW) and/or Packet Data Gateway (PGW)). As opposed to fallback operation, in stand-
alone operation Call Detail Records (CDR) will still be generated.
Stand-alone operation is the emergency operating mode of base stations in networks with
distributed switching architecture. The unavailability of network-wide services is signaled
to the terminals and taken into account by them during the cell selection. Depending on
the project requirements, the signaling can be switched off upon demand.
3.5.6
Redundant V
AC
power supply
For the reliable power supply, DIB-R5 provides two redundancy options for V
AC
power
supply to ensure operation of the base station at all times:
n
Ä
Redundant rectifier modules (Power Supply Module, PSM)
n
Ä
Redundant power supply lines
Both redundancy options can be combined for the highest possible reliability.
3.5.6.1 Redundant rectifier modules (Power Supply Module, PSM)
The power supply continues to be ensured through redundant rectifier modules (Power
Supply Module, PSM) and ensures the operation of DIB-R5 if one PSM should fail. The
active and the redundant PSMs are all in operation in this case and divide the load
among them. In case of a failure, the load on the remaining PSMs is increased accord-
ingly.
Product description
Redundancy options > Redundant VAC power supply
DIB-R5 flexibleTx
60 Operation Manual 90DIBR5flexibleTxOM02 - 1.2